[rollei_list] Re: Lens coatings and veiling flare.
- From: "Ellestads" <ellestads@xxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Wed, 8 Jul 2009 09:52:20 -0500
Please be careful cleaning interior surfaces of older coated lenses. Many of
theses lenses (including Leica) ued soft coatings on the inner elements.
Cleaning can reduce those coatings.
Tim
----- Original Message -----
From: "Frank Dernie" <Frank.Dernie@xxxxxxxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Wednesday, July 08, 2009 09:35
Subject: [rollei_list] Re: Lens coatings and veiling flare.
Hi Sanders,
my vote would go for the internal haze. I had a Leica 90mm f2.8 lens
with disappointing flare and glare, there did not look to be much haze
on the elements but a clean improved things enormously.
cheers,
Frank
On 8 Jul, 2009, at 13:51, Sanders McNew wrote:
> Thanks, everybody, for your thoughts on this.
>
> Carlos: I wasn't trying to stir the roller-flare pot
> again -- this is just general veiling flare. I promise
> never ever to ask about rollers and flare again. :-)
>
> Mark: I agree, that it is rarely a good idea to put
> the sun into the frame. But I am finding that if,
> for example, I shoot a person in shadow, with the
> Guggenheim Museum behind her on a sunny
> afternoon, the light reflected off the white expanse
> of the museum is enough to kill the contrast and
> turn the photo to mud. Perhaps I am asking too
> much of any camera. Still a guy can hope.
>
> Richard and Eric: It had not occurred to me that
> lens haze could be an issue. This happens most
> frequently with my 3.5E, which hasn't been in the
> shop for serious work since I bought it from Ken
> Hansen ages ago.
>
> Come to think of it, Melanie's 2.8E3 doesn't seem
> to have these issues. Would the E3 have different
> coatings than my old E?
>
> Sanders
>
>
> On Jul 8, 2009, at 1:07 AM, FreeLists Mailing List Manager wrote:
>
>> rollei_list Digest Tue, 07 Jul 2009 Volume: 05 Issue: 155
>>
>> In This Issue:
>> [rollei_list] Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>> [rollei_list] Re: Lens coatings and veiling flare.
>>
>> ----------------------------------------------------------------------
>>
>> From: Sanders McNew <sanders@xxxxxxxxx>
>> Subject: [rollei_list] Lens coatings and veiling flare.
>> Date: Tue, 7 Jul 2009 07:52:42 -0400
>>
>> I shoot a variety of older Rolleiflexes --
>> a 3.5E and a 2.8C getting most of the
>> work. Their weakness, in my use, has
>> always been veiling flare when shooting
>> a strongly backlit subject, or in other
>> conditions where the sun or a bright
>> reflection is in the frame.
>>
>> Does anyone onlist know when F+H
>> or its lens suppliers upgraded the lens
>> coatings on the TLRs? Are later TLR
>> models more effective at suppressing
>> veiling flare in these conditions? Do
>> I need to ask Austin for his GX to tame
>> this beast?
>>
>> Sanders
>>
>> ------------------------------
>>
>> From: "Austin Franklin" <austin.franklin@xxxxxxxxxxx>
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>> Date: Tue, 7 Jul 2009 08:52:51 -0400
>>
>> Hi Sanders,
>>
>>> Do
>>> I need to ask Austin for his GX to tame
>>> this beast?
>>
>> Yes. It is the only solution.
>>
>> Regards,
>>
>> Austin
>>
>> ------------------------------
>>
>> Date: Tue, 7 Jul 2009 08:06:02 -0700 (PDT)
>> From: Carlos Manuel Freaza <cmfreaza@xxxxxxxxxxxx>
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>>
>>
>> Rollei TLR were provided with simple lens coating from 1949, during
>> the TLR regular production up to 1981 the TLR lenses had not
>> multicoating layers, only the Zeiss double layer coating; in 1972
>> Rollei considered multicoating lenses expensive too much for the
>> TLR and unnecessary due to the four and five elements lenses, since
>> Carl Zeiss would produce multicoated normal lenses, Rollei only
>> used Schneider Xenotar and Xenar for the TLR from 1972/73. The
>> only Rolleiflex F provided with multicoated lenses was the F
>> Platin, Planar lens 2.8/80 HFT (actually it's a Zeiss T*
>> multicoating made by Zeiss, it was used "HFT" name for commercial
>> issues and the agreements between Rollei and CZ by that time), this
>> Planar was used for the GX/FX afterwards, it was made from the
>> scratch by Zeiss 'cause they no longer had the tooling to
>> manufacture the TLR Planar.
>>
>> The main problem about flare under the situations mentioned below
>> is the lens and camera age and their condition; light seals, black
>> paint, light trap adjustments and conditions suffer the aging
>> situation even if well maintained, anyway I have several samples
>> taken with the 2.8C, 3.5F and 'cord IV where in similar situations
>> and despite the subtropical sun I don't get flare or if I get it,
>> it is maintained within reasonable limits, however I got once or
>> twice ugly flare due to the special angle sun-lens.
>>
>> I'm convinced due to some tests that for old cameras like our TLRs,
>> the f/stop has a significant influence to control the flare in the
>> situations referred below, it could do a noticeable difference, I
>> always try to shoot at f 5.6 and smaller f stops for backlit and
>> similars, Avedon shot at f8 with the TLR in general. If my memory
>> serves me good, you tend to shoot lens wide open or close to wide
>> open, perhaps it has to do with the flare and rollers reflection
>> problems.
>>
>> Carlos
>>
>> --- El mar 7-jul-09, Sanders McNew <sanders@xxxxxxxxx> escribió:
>>
>>> I shoot a variety of older
>>> Rolleiflexes --
>>> a 3.5E and a 2.8C getting most of the
>>> work. Their weakness, in my use, has
>>> always been veiling flare when shooting
>>> a strongly backlit subject, or in other
>>> conditions where the sun or a bright
>>> reflection is in the frame.
>>>
>>> Does anyone onlist know when F+H
>>> or its lens suppliers upgraded the lens
>>> coatings on the TLRs? Are later TLR
>>> models more effective at suppressing
>>> veiling flare in these conditions? Do
>>> I need to ask Austin for his GX to tame
>>> this beast?
>>>
>>> Sanders
>>> ---
>>> Rollei List
>>>
>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>
>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx
>>> with 'subscribe' in the subject field OR by logging into
>>> www.freelists.org
>>>
>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx
>>> with 'unsubscribe' in the subject field OR by logging into
>>> www.freelists.org
>>>
>>> - Online, searchable archives are available at
>>> //www.freelists.org/archives/rollei_list
>>>
>>>
>>
>>
>>
>>
____________________________________________________________________________
________
>> ¡Viví la mejor experiencia en la web!
>> Descargá gratis el nuevo Internet Explorer 8
>> http://downloads.yahoo.com/ieak8/?l=ar
>>
>> ------------------------------
>>
>> From: Eric Goldstein <egoldste@xxxxxxxxx>
>> Date: Tue, 7 Jul 2009 11:13:51 -0400
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>>
>> Sanders -
>>
>> The problem with the later lenses is the much higher over-all
>> contrast
>> and "modern" look. Personally I hate it. Suggest you shoot one for a
>> while before you buy it... it will probably compel you to change your
>> light, printing, development, etc...
>>
>>
>> Eric Goldstein
>>
>> --
>>
>> On Tue, Jul 7, 2009 at 11:06 AM, Carlos Manuel
>> Freaza<cmfreaza@xxxxxxxxxxxx> wrote:
>>>
>>> Rollei TLR were provided with simple lens coating from 1949,
>>> during the TLR regular production up to 1981 the TLR lenses had
>>> not multicoating layers, only the Zeiss double layer coating; in
>>> 1972 Rollei considered multicoating lenses expensive too much for
>>> the TLR and unnecessary due to the four and five elements lenses,
>>> since Carl Zeiss would produce multicoated normal lenses, Rollei
>>> only used Schneider Xenotar and Xenar for the TLR from 1972/73.
>>> The only Rolleiflex F provided with multicoated lenses was the F
>>> Platin, Planar lens 2.8/80 HFT (actually it's a Zeiss T*
>>> multicoating made by Zeiss, it was used "HFT" name for commercial
>>> issues and the agreements between Rollei and CZ by that time),
>>> this Planar was used for the GX/FX afterwards, it was made from
>>> the scratch by Zeiss 'cause they no longer had the tooling to
>>> manufacture the TLR Planar.
>>>
>>> The main problem about flare under the situations mentioned below
>>> is the lens and camera age and their condition; light seals, black
>>> paint, light trap adjustments and conditions suffer the aging
>>> situation even if well maintained, anyway I have several samples
>>> taken with the 2.8C, 3.5F and 'cord IV where in similar situations
>>> and despite the subtropical sun I don't get flare or if I get it,
>>> it is maintained within reasonable limits, however I got once or
>>> twice ugly flare due to the special angle sun-lens.
>>>
>>> I'm convinced due to some tests that for old cameras like our
>>> TLRs, the f/stop has a significant influence to control the flare
>>> in the situations referred below, it could do a noticeable
>>> difference, I always try to shoot at f 5.6 and smaller f stops for
>>> backlit and similars, Avedon shot at f8 with the TLR in general.
>>> If my memory serves me good, you tend to shoot lens wide open or
>>> close to wide open, perhaps it has to do with the flare and
>>> rollers reflection problems.
>>>
>>> Carlos
>>>
>>> --- El mar 7-jul-09, Sanders McNew <sanders@xxxxxxxxx> escribió:
>>>
>>>> I shoot a variety of older
>>>> Rolleiflexes --
>>>> a 3.5E and a 2.8C getting most of the
>>>> work. Their weakness, in my use, has
>>>> always been veiling flare when shooting
>>>> a strongly backlit subject, or in other
>>>> conditions where the sun or a bright
>>>> reflection is in the frame.
>>>>
>>>> Does anyone onlist know when F+H
>>>> or its lens suppliers upgraded the lens
>>>> coatings on the TLRs? Are later TLR
>>>> models more effective at suppressing
>>>> veiling flare in these conditions? Do
>>>> I need to ask Austin for his GX to tame
>>>> this beast?
>>>>
>>>> Sanders
>>>> ---
>>>> Rollei List
>>>>
>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>
>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx
>>>> with 'subscribe' in the subject field OR by logging into
>>>> www.freelists.org
>>>>
>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx
>>>> with 'unsubscribe' in the subject field OR by logging into
>>>> www.freelists.org
>>>>
>>>> - Online, searchable archives are available at
>>>> //www.freelists.org/archives/rollei_list
>>>>
>>>>
>>>
>>>
>>>
>>>
____________________________________________________________________________
________
>>> ¡Viví la mejor experiencia en la web!
>>> Descargá gratis el nuevo Internet Explorer 8
>>> http://downloads.yahoo.com/ieak8/?l=ar
>>> ---
>>> Rollei List
>>>
>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>
>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>> in the subject field OR by logging into www.freelists.org
>>>
>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>> 'unsubscribe' in the subject field OR by logging into www.freelists.org
>>>
>>> - Online, searchable archives are available at
>>> //www.freelists.org/archives/rollei_list
>>>
>>>
>>
>> ------------------------------
>>
>> Date: Tue, 7 Jul 2009 08:26:31 -0700
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>> From: Gene Johnson <genej2ster@xxxxxxxxx>
>>
>> There's a lot of truth to this. Some of my best pictures of women
>> are with
>> uncoated glass. It requires careful light management, but the
>> result is
>> often much nicer to my eye. I have a view camera set up with an air
>> shutter
>> that I've put all kinds of different glass in front of. Old Kodaks
>> and Ross
>> Expres have been favorites fwiw.
>> On Tue, Jul 7, 2009 at 8:13 AM, Eric Goldstein <egoldste@xxxxxxxxx>
>> wrote:
>>
>>> Sanders -
>>>
>>> The problem with the later lenses is the much higher over-all
>>> contrast
>>> and "modern" look. Personally I hate it. Suggest you shoot one for a
>>> while before you buy it... it will probably compel you to change
>>> your
>>> light, printing, development, etc...
>>>
>>>
>>> Eric Goldstein
>>>
>>> --
>>>
>>> On Tue, Jul 7, 2009 at 11:06 AM, Carlos Manuel
>>> Freaza<cmfreaza@xxxxxxxxxxxx> wrote:
>>>>
>>>> Rollei TLR were provided with simple lens coating from 1949,
>>>> during the
>>> TLR regular production up to 1981 the TLR lenses had not
>>> multicoating
>>> layers, only the Zeiss double layer coating; in 1972 Rollei
>>> considered
>>> multicoating lenses expensive too much for the TLR and unnecessary
>>> due to
>>> the four and five elements lenses, since Carl Zeiss would produce
>>> multicoated normal lenses, Rollei only used Schneider Xenotar and
>>> Xenar for
>>> the TLR from 1972/73. The only Rolleiflex F provided with
>>> multicoated lenses
>>> was the F Platin, Planar lens 2.8/80 HFT (actually it's a Zeiss T*
>>> multicoating made by Zeiss, it was used "HFT" name for commercial
>>> issues and
>>> the agreements between Rollei and CZ by that time), this Planar
>>> was used for
>>> the GX/FX afterwards, it was made from the scratch by Zeiss 'cause
>>> they no
>>> longer had the tooling to manufacture the TLR Planar.
>>>>
>>>> The main problem about flare under the situations mentioned below
>>>> is the
>>> lens and camera age and their condition; light seals, black paint,
>>> light
>>> trap adjustments and conditions suffer the aging situation even if
>>> well
>>> maintained, anyway I have several samples taken with the 2.8C,
>>> 3.5F and
>>> 'cord IV where in similar situations and despite the subtropical
>>> sun I don't
>>> get flare or if I get it, it is maintained within reasonable
>>> limits, however
>>> I got once or twice ugly flare due to the special angle sun-lens.
>>>>
>>>> I'm convinced due to some tests that for old cameras like our
>>>> TLRs, the
>>> f/stop has a significant influence to control the flare in the
>>> situations
>>> referred below, it could do a noticeable difference, I always try
>>> to shoot
>>> at f 5.6 and smaller f stops for backlit and similars, Avedon shot
>>> at f8
>>> with the TLR in general. If my memory serves me good, you tend to
>>> shoot lens
>>> wide open or close to wide open, perhaps it has to do with the
>>> flare and
>>> rollers reflection problems.
>>>>
>>>> Carlos
>>>>
>>>> --- El mar 7-jul-09, Sanders McNew <sanders@xxxxxxxxx> escribió:
>>>>
>>>>> I shoot a variety of older
>>>>> Rolleiflexes --
>>>>> a 3.5E and a 2.8C getting most of the
>>>>> work. Their weakness, in my use, has
>>>>> always been veiling flare when shooting
>>>>> a strongly backlit subject, or in other
>>>>> conditions where the sun or a bright
>>>>> reflection is in the frame.
>>>>>
>>>>> Does anyone onlist know when F+H
>>>>> or its lens suppliers upgraded the lens
>>>>> coatings on the TLRs? Are later TLR
>>>>> models more effective at suppressing
>>>>> veiling flare in these conditions? Do
>>>>> I need to ask Austin for his GX to tame
>>>>> this beast?
>>>>>
>>>>> Sanders
>>>>> ---
>>>>> Rollei List
>>>>>
>>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>>
>>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx
>>>>> with 'subscribe' in the subject field OR by logging into
>>>>> www.freelists.org
>>>>>
>>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx
>>>>> with 'unsubscribe' in the subject field OR by logging into
>>>>> www.freelists.org
>>>>>
>>>>> - Online, searchable archives are available at
>>>>> //www.freelists.org/archives/rollei_list
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>
____________________________________________________________________________
________
>>>> ¡Viví la mejor experiencia en la web!
>>>> Descargá gratis el nuevo Internet Explorer 8
>>>> http://downloads.yahoo.com/ieak8/?l=ar
>>>> ---
>>>> Rollei List
>>>>
>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>
>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>>> in the subject field OR by logging into www.freelists.org
>>>>
>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>> 'unsubscribe' in the subject field OR by logging into www.freelists.org
>>>>
>>>> - Online, searchable archives are available at
>>>> //www.freelists.org/archives/rollei_list
>>>>
>>>>
>>> ---
>>> Rollei List
>>>
>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>
>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>> in the subject field OR by logging into www.freelists.org
>>>
>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>> 'unsubscribe' in the subject field OR by logging into www.freelists.org
>>>
>>> - Online, searchable archives are available at
>>> //www.freelists.org/archives/rollei_list
>>>
>>>
>>
>>
>> --
>> Be Just and Fear Not
>>
>>
>> ------------------------------
>>
>> Date: Tue, 7 Jul 2009 09:39:40 -0700
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>> From: "Peter K." <peterk727@xxxxxxxxx>
>>
>> The only one I know of is Jon Van Stelten in Colorado. He will
>> recoat and it
>> will help if you shoot B&W. With color from my own experience you
>> get a
>> shift.
>> On Tue, Jul 7, 2009 at 4:52 AM, Sanders McNew <sanders@xxxxxxxxx>
>> wrote:
>>
>>> I shoot a variety of older Rolleiflexes --
>>> a 3.5E and a 2.8C getting most of the
>>> work. Their weakness, in my use, has
>>> always been veiling flare when shooting
>>> a strongly backlit subject, or in other
>>> conditions where the sun or a bright
>>> reflection is in the frame.
>>>
>>> Does anyone onlist know when F+H
>>> or its lens suppliers upgraded the lens
>>> coatings on the TLRs? Are later TLR
>>> models more effective at suppressing
>>> veiling flare in these conditions? Do
>>> I need to ask Austin for his GX to tame
>>> this beast?
>>>
>>> Sanders
>>> ---
>>> Rollei List
>>>
>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>
>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>> in the
>>> subject field OR by logging into www.freelists.org
>>>
>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>> 'unsubscribe' in
>>> the subject field OR by logging into www.freelists.org
>>>
>>> - Online, searchable archives are available at
>>> //www.freelists.org/archives/rollei_list
>>>
>>>
>>
>>
>> --
>> Peter K
>> Ó¿Õ¬
>>
>>
>> ------------------------------
>>
>> From: Eric Goldstein <egoldste@xxxxxxxxx>
>> Date: Tue, 7 Jul 2009 12:49:03 -0400
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>>
>> I believe John only single coats... at least this was the case last
>> I checked...
>>
>>
>> Eric Goldstein
>>
>> --
>>
>> On Tue, Jul 7, 2009 at 12:39 PM, Peter K.<peterk727@xxxxxxxxx> wrote:
>>> The only one I know of is Jon Van Stelten in Colorado. He will
>>> recoat and it
>>> will help if you shoot B&W. With color from my own experience you
>>> get a
>>> shift.
>>>
>>> On Tue, Jul 7, 2009 at 4:52 AM, Sanders McNew <sanders@xxxxxxxxx>
>>> wrote:
>>>>
>>>> I shoot a variety of older Rolleiflexes --
>>>> a 3.5E and a 2.8C getting most of the
>>>> work. Their weakness, in my use, has
>>>> always been veiling flare when shooting
>>>> a strongly backlit subject, or in other
>>>> conditions where the sun or a bright
>>>> reflection is in the frame.
>>>>
>>>> Does anyone onlist know when F+H
>>>> or its lens suppliers upgraded the lens
>>>> coatings on the TLRs? Are later TLR
>>>> models more effective at suppressing
>>>> veiling flare in these conditions? Do
>>>> I need to ask Austin for his GX to tame
>>>> this beast?
>>>>
>>>> Sanders
>>>> ---
>>>> Rollei List
>>>>
>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>
>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>>> in the
>>>> subject field OR by logging into www.freelists.org
>>>>
>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>> 'unsubscribe' in
>>>> the subject field OR by logging into www.freelists.org
>>>>
>>>> - Online, searchable archives are available at
>>>> //www.freelists.org/archives/rollei_list
>>>>
>>>
>>>
>>>
>>> --
>>> Peter K
>>> Ó¿Õ¬
>>>
>>
>> ------------------------------
>>
>> Date: Tue, 7 Jul 2009 09:56:47 -0700
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>> From: "Peter K." <peterk727@xxxxxxxxx>
>>
>> Yes, but with the age of most Rollei lenses it is a better coating
>> (arguably) compared to one that is 50 years old. Is it worth it?
>> Depends. I
>> had a Rollei Wide Mutar and a Xenotar done. Both had worn coating
>> so to me
>> it was worth it. I did not like the color shift with the Xenotar so
>> I sold
>> it along with several Rolleis I had when I went through my Rollei
>> reduction
>> period.
>> On Tue, Jul 7, 2009 at 9:49 AM, Eric Goldstein <egoldste@xxxxxxxxx>
>> wrote:
>>
>>> I believe John only single coats... at least this was the case
>>> last I
>>> checked...
>>>
>>>
>>> Eric Goldstein
>>>
>>> --
>>>
>>> On Tue, Jul 7, 2009 at 12:39 PM, Peter K.<peterk727@xxxxxxxxx>
>>> wrote:
>>>> The only one I know of is Jon Van Stelten in Colorado. He will
>>>> recoat and
>>> it
>>>> will help if you shoot B&W. With color from my own experience you
>>>> get a
>>>> shift.
>>>>
>>>> On Tue, Jul 7, 2009 at 4:52 AM, Sanders McNew <sanders@xxxxxxxxx>
>>>> wrote:
>>>>>
>>>>> I shoot a variety of older Rolleiflexes --
>>>>> a 3.5E and a 2.8C getting most of the
>>>>> work. Their weakness, in my use, has
>>>>> always been veiling flare when shooting
>>>>> a strongly backlit subject, or in other
>>>>> conditions where the sun or a bright
>>>>> reflection is in the frame.
>>>>>
>>>>> Does anyone onlist know when F+H
>>>>> or its lens suppliers upgraded the lens
>>>>> coatings on the TLRs? Are later TLR
>>>>> models more effective at suppressing
>>>>> veiling flare in these conditions? Do
>>>>> I need to ask Austin for his GX to tame
>>>>> this beast?
>>>>>
>>>>> Sanders
>>>>> ---
>>>>> Rollei List
>>>>>
>>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>>
>>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>>> 'subscribe' in
>>> the
>>>>> subject field OR by logging into www.freelists.org
>>>>>
>>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>>> 'unsubscribe'
>>> in
>>>>> the subject field OR by logging into www.freelists.org
>>>>>
>>>>> - Online, searchable archives are available at
>>>>> //www.freelists.org/archives/rollei_list
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Peter K
>>>> Ó¿Õ¬
>>>>
>>> ---
>>> Rollei List
>>>
>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>
>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>> in the subject field OR by logging into www.freelists.org
>>>
>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>> 'unsubscribe' in the subject field OR by logging into www.freelists.org
>>>
>>> - Online, searchable archives are available at
>>> //www.freelists.org/archives/rollei_list
>>>
>>>
>>
>>
>> --
>> Peter K
>> Ó¿Õ¬
>>
>>
>> ------------------------------
>>
>> From: Eric Goldstein <egoldste@xxxxxxxxx>
>> Date: Tue, 7 Jul 2009 13:07:18 -0400
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>>
>> Hi Peter -
>>
>> Not really commenting on which is better (single or multi) but
>> referencing Sander's original post asking for more modern coatings...
>>
>>
>> Eric Goldstein
>>
>> --
>>
>> On Tue, Jul 7, 2009 at 12:56 PM, Peter K.<peterk727@xxxxxxxxx> wrote:
>>> Yes, but with the age of most Rollei lenses it is a better coating
>>> (arguably) compared to one that is 50 years old. Is it worth it?
>>> Depends. I
>>> had a Rollei Wide Mutar and a Xenotar done. Both had worn coating
>>> so to me
>>> it was worth it. I did not like the color shift with the Xenotar
>>> so I sold
>>> it along with several Rolleis I had when I went through my Rollei
>>> reduction
>>> period.
>>>
>>> On Tue, Jul 7, 2009 at 9:49 AM, Eric Goldstein
>>> <egoldste@xxxxxxxxx> wrote:
>>>>
>>>> I believe John only single coats... at least this was the case
>>>> last I
>>>> checked...
>>>>
>>>>
>>>> Eric Goldstein
>>>>
>>>> --
>>>>
>>>> On Tue, Jul 7, 2009 at 12:39 PM, Peter K.<peterk727@xxxxxxxxx>
>>>> wrote:
>>>>> The only one I know of is Jon Van Stelten in Colorado. He will
>>>>> recoat
>>>>> and it
>>>>> will help if you shoot B&W. With color from my own experience
>>>>> you get a
>>>>> shift.
>>>>>
>>>>> On Tue, Jul 7, 2009 at 4:52 AM, Sanders McNew
>>>>> <sanders@xxxxxxxxx> wrote:
>>>>>>
>>>>>> I shoot a variety of older Rolleiflexes --
>>>>>> a 3.5E and a 2.8C getting most of the
>>>>>> work. Their weakness, in my use, has
>>>>>> always been veiling flare when shooting
>>>>>> a strongly backlit subject, or in other
>>>>>> conditions where the sun or a bright
>>>>>> reflection is in the frame.
>>>>>>
>>>>>> Does anyone onlist know when F+H
>>>>>> or its lens suppliers upgraded the lens
>>>>>> coatings on the TLRs? Are later TLR
>>>>>> models more effective at suppressing
>>>>>> veiling flare in these conditions? Do
>>>>>> I need to ask Austin for his GX to tame
>>>>>> this beast?
>>>>>>
>>>>>> Sanders
>>>>>> ---
>>>>>> Rollei List
>>>>>>
>>>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>>>
>>>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>>>> 'subscribe' in
>>>>>> the
>>>>>> subject field OR by logging into www.freelists.org
>>>>>>
>>>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>>>> 'unsubscribe'
>>>>>> in
>>>>>> the subject field OR by logging into www.freelists.org
>>>>>>
>>>>>> - Online, searchable archives are available at
>>>>>> //www.freelists.org/archives/rollei_list
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Peter K
>>>>> Ó¿Õ¬
>>>>>
>>>> ---
>>>> Rollei List
>>>>
>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>
>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>>> in the subject field OR by logging into www.freelists.org
>>>>
>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>> 'unsubscribe' in the subject field OR by logging into www.freelists.org
>>>>
>>>> - Online, searchable archives are available at
>>>> //www.freelists.org/archives/rollei_list
>>>>
>>>
>>>
>>>
>>> --
>>> Peter K
>>> Ó¿Õ¬
>>>
>>
>> ------------------------------
>>
>> Date: Tue, 07 Jul 2009 13:55:56 -0400
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>> From: Mark Rabiner <mark@xxxxxxxxxxxxxxxx>
>>
>> I'd like to know of any lens which does not do that in those
>> conditions.
>> I don't think there is one. Of any camera system.
>> Me I don't point my lens at the sun to see if I like it or not.
>>
>>
>> Mark William Rabiner
>>
>>
>>
>>> From: Sanders McNew <sanders@xxxxxxxxx>
>>> Reply-To: <rollei_list@xxxxxxxxxxxxx>
>>> Date: Tue, 7 Jul 2009 07:52:42 -0400
>>> To: <rollei_list@xxxxxxxxxxxxx>
>>> Subject: [rollei_list] Lens coatings and veiling flare.
>>>
>>> I shoot a variety of older Rolleiflexes --
>>> a 3.5E and a 2.8C getting most of the
>>> work. Their weakness, in my use, has
>>> always been veiling flare when shooting
>>> a strongly backlit subject, or in other
>>> conditions where the sun or a bright
>>> reflection is in the frame.
>>>
>>> Does anyone onlist know when F+H
>>> or its lens suppliers upgraded the lens
>>> coatings on the TLRs? Are later TLR
>>> models more effective at suppressing
>>> veiling flare in these conditions? Do
>>> I need to ask Austin for his GX to tame
>>> this beast?
>>>
>>> Sanders
>>> ---
>>> Rollei List
>>
>>
>>
>> ------------------------------
>>
>> From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>> Date: Tue, 7 Jul 2009 12:27:28 -0700
>>
>>
>> ----- Original Message -----
>> From: "Sanders McNew" <sanders@xxxxxxxxx>
>> To: <rollei_list@xxxxxxxxxxxxx>
>> Sent: Tuesday, July 07, 2009 4:52 AM
>> Subject: [rollei_list] Lens coatings and veiling flare.
>>
>>
>>> I shoot a variety of older Rolleiflexes --
>>> a 3.5E and a 2.8C getting most of the
>>> work. Their weakness, in my use, has
>>> always been veiling flare when shooting
>>> a strongly backlit subject, or in other
>>> conditions where the sun or a bright
>>> reflection is in the frame.
>>>
>>> Does anyone onlist know when F+H
>>> or its lens suppliers upgraded the lens
>>> coatings on the TLRs? Are later TLR
>>> models more effective at suppressing
>>> veiling flare in these conditions? Do
>>> I need to ask Austin for his GX to tame
>>> this beast?
>>>
>>> Sanders
>>> ---
>> Check your lenses for internal haze. Shine a flashlight
>> through the lens with the shutter and iris open. A very
>> small amount of haze will destroy image contrast. The haze
>> can be cleaned off but usually requires opening the lens.
>> The difference between single layer coatings and later
>> multiple layer ones is mostly exhibited in color contrast.
>> The single layer is most effective at a single wavelength
>> and falls off in effectiveness above or below that. Usually
>> single layer coatings are peaked for either green or blue
>> light. The residual reflection from the lens will indicate
>> the peaked wavelength because it is its compliment. Lenses
>> peaked for green light have magenta reflections and those
>> peaked in the blue have amber reflections.
>> Multi-coating broadens out the band of wavelengths, or
>> colors, where the coating is effective. Double coatings were
>> the first but modern lenses may have several coatings. A
>> really good broadband coating should have nearly no
>> reflection and that with no residual color. I doubt very
>> much if any consumer lenses have this grade of coating but a
>> practical coating will come close.
>> The main visual effect of a multiple coated lens in
>> photographs is an improvement in color purity and saturation
>> although it will certainly improve monochrome contrast as
>> well. The main effect of flare is to lower _shadow_
>> contrast, in effect similar to a long toe film. Haze has a
>> similar effect but can be considerably greater than the
>> internal reflection flare from relatively simple lenses.
>>
>> --
>> Richard Knoppow
>> Los Angeles, CA, USA
>> dickburk@xxxxxxxxxxxxx
>>
>>
>> ------------------------------
>>
>> From: Eric Goldstein <egoldste@xxxxxxxxx>
>> Date: Tue, 7 Jul 2009 16:24:47 -0400
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>>
>> Richard -
>>
>> I know that the C has been serviced relatively recently as this was
>> discussed here... if the lens was not cleaned carefully at that time,
>> shame on whoever did it...
>>
>>
>> Eric Goldstein
>>
>> --
>>
>> On Tue, Jul 7, 2009 at 3:27 PM, Richard Knoppow<dickburk@xxxxxxxxxxxxx
>> > wrote:
>>>
>>> ----- Original Message ----- From: "Sanders McNew" <sanders@xxxxxxxxx
>>> >
>>> To: <rollei_list@xxxxxxxxxxxxx>
>>> Sent: Tuesday, July 07, 2009 4:52 AM
>>> Subject: [rollei_list] Lens coatings and veiling flare.
>>>
>>>
>>>> I shoot a variety of older Rolleiflexes --
>>>> a 3.5E and a 2.8C getting most of the
>>>> work. Their weakness, in my use, has
>>>> always been veiling flare when shooting
>>>> a strongly backlit subject, or in other
>>>> conditions where the sun or a bright
>>>> reflection is in the frame.
>>>>
>>>> Does anyone onlist know when F+H
>>>> or its lens suppliers upgraded the lens
>>>> coatings on the TLRs? Are later TLR
>>>> models more effective at suppressing
>>>> veiling flare in these conditions? Do
>>>> I need to ask Austin for his GX to tame
>>>> this beast?
>>>>
>>>> Sanders
>>>> ---
>>>
>>> Check your lenses for internal haze. Shine a flashlight through
>>> the lens
>>> with the shutter and iris open. A very small amount of haze will
>>> destroy
>>> image contrast. The haze can be cleaned off but usually requires
>>> opening the
>>> lens.
>>> The difference between single layer coatings and later multiple
>>> layer
>>> ones is mostly exhibited in color contrast. The single layer is most
>>> effective at a single wavelength and falls off in effectiveness
>>> above or
>>> below that. Usually single layer coatings are peaked for either
>>> green or
>>> blue light. The residual reflection from the lens will indicate
>>> the peaked
>>> wavelength because it is its compliment. Lenses peaked for green
>>> light have
>>> magenta reflections and those peaked in the blue have amber
>>> reflections.
>>> Multi-coating broadens out the band of wavelengths, or colors,
>>> where the
>>> coating is effective. Double coatings were the first but modern
>>> lenses may
>>> have several coatings. A really good broadband coating should have
>>> nearly no
>>> reflection and that with no residual color. I doubt very much if any
>>> consumer lenses have this grade of coating but a practical coating
>>> will come
>>> close.
>>> The main visual effect of a multiple coated lens in photographs
>>> is an
>>> improvement in color purity and saturation although it will
>>> certainly
>>> improve monochrome contrast as well. The main effect of flare is
>>> to lower
>>> _shadow_ contrast, in effect similar to a long toe film. Haze has
>>> a similar
>>> effect but can be considerably greater than the internal
>>> reflection flare
>>> from relatively simple lenses.
>>>
>>> --
>>> Richard Knoppow
>>> Los Angeles, CA, USA
>>> dickburk@xxxxxxxxxxxxx
>>> ---
>>> Rollei List
>>>
>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>
>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>> in the
>>> subject field OR by logging into www.freelists.org
>>>
>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>> 'unsubscribe' in the
>>> subject field OR by logging into www.freelists.org
>>>
>>> - Online, searchable archives are available at
>>> //www.freelists.org/archives/rollei_list
>>>
>>>
>>
>> ------------------------------
>>
>> Date: Tue, 7 Jul 2009 15:10:06 -0700
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>> From: "Peter K." <peterk727@xxxxxxxxx>
>>
>> Well, IMO Van Stelten's newer coatings are better than the original,
>> especially when one considers that the older one may not be
>> completely
>> intact. Just my opinion. That being said, the flare control has a lot
>> to do with lens design as well. I know my Tessar handles flare better
>> than my Planar or Xenotar. Not sure why, but it does. Same with some
>> of the Leica lenses. Even though they were based on the Planar, the
>> change in design, sometimes through the addition of an element,
>> improved the way it handled flare. Why? I am not 100% certain but I
>> am
>> sure Richard can shed some light on this.
>>
>> Cheers,
>> Peter K
>>
>> On Tue, Jul 7, 2009 at 10:07 AM, Eric Goldstein<egoldste@xxxxxxxxx>
>> wrote:
>>> Hi Peter -
>>>
>>> Not really commenting on which is better (single or multi) but
>>> referencing Sander's original post asking for more modern
>>> coatings...
>>>
>>>
>>> Eric Goldstein
>>>
>>> --
>>>
>>> On Tue, Jul 7, 2009 at 12:56 PM, Peter K.<peterk727@xxxxxxxxx>
>>> wrote:
>>>> Yes, but with the age of most Rollei lenses it is a better coating
>>>> (arguably) compared to one that is 50 years old. Is it worth it?
>>>> Depends. I
>>>> had a Rollei Wide Mutar and a Xenotar done. Both had worn coating
>>>> so to me
>>>> it was worth it. I did not like the color shift with the Xenotar
>>>> so I sold
>>>> it along with several Rolleis I had when I went through my Rollei
>>>> reduction
>>>> period.
>>>>
>>>> On Tue, Jul 7, 2009 at 9:49 AM, Eric Goldstein
>>>> <egoldste@xxxxxxxxx> wrote:
>>>>>
>>>>> I believe John only single coats... at least this was the case
>>>>> last I
>>>>> checked...
>>>>>
>>>>>
>>>>> Eric Goldstein
>>>>>
>>>>> --
>>>>>
>>>>> On Tue, Jul 7, 2009 at 12:39 PM, Peter K.<peterk727@xxxxxxxxx>
>>>>> wrote:
>>>>>> The only one I know of is Jon Van Stelten in Colorado. He will
>>>>>> recoat
>>>>>> and it
>>>>>> will help if you shoot B&W. With color from my own experience
>>>>>> you get a
>>>>>> shift.
>>>>>>
>>>>>> On Tue, Jul 7, 2009 at 4:52 AM, Sanders McNew
>>>>>> <sanders@xxxxxxxxx> wrote:
>>>>>>>
>>>>>>> I shoot a variety of older Rolleiflexes --
>>>>>>> a 3.5E and a 2.8C getting most of the
>>>>>>> work. Their weakness, in my use, has
>>>>>>> always been veiling flare when shooting
>>>>>>> a strongly backlit subject, or in other
>>>>>>> conditions where the sun or a bright
>>>>>>> reflection is in the frame.
>>>>>>>
>>>>>>> Does anyone onlist know when F+H
>>>>>>> or its lens suppliers upgraded the lens
>>>>>>> coatings on the TLRs? Are later TLR
>>>>>>> models more effective at suppressing
>>>>>>> veiling flare in these conditions? Do
>>>>>>> I need to ask Austin for his GX to tame
>>>>>>> this beast?
>>>>>>>
>>>>>>> Sanders
>>>>>>> ---
>>>>>>> Rollei List
>>>>>>>
>>>>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>>>>
>>>>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>>>>> 'subscribe' in
>>>>>>> the
>>>>>>> subject field OR by logging into www.freelists.org
>>>>>>>
>>>>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>>>>> 'unsubscribe'
>>>>>>> in
>>>>>>> the subject field OR by logging into www.freelists.org
>>>>>>>
>>>>>>> - Online, searchable archives are available at
>>>>>>> //www.freelists.org/archives/rollei_list
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Peter K
>>>>>> Ó¿Õ¬
>>>>>>
>>>>> ---
>>>>> Rollei List
>>>>>
>>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>>
>>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>>>> in the subject field OR by logging into www.freelists.org
>>>>>
>>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>>> 'unsubscribe' in the subject field OR by logging into
www.freelists.org
>>>>>
>>>>> - Online, searchable archives are available at
>>>>> //www.freelists.org/archives/rollei_list
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Peter K
>>>> Ó¿Õ¬
>>>>
>>> ---
>>> Rollei List
>>>
>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>
>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>> in the subject field OR by logging into www.freelists.org
>>>
>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>> 'unsubscribe' in the subject field OR by logging into www.freelists.org
>>>
>>> - Online, searchable archives are available at
>>> //www.freelists.org/archives/rollei_list
>>>
>>>
>>
>>
>>
>> --
>> Peter K
>> Ó¿Õ¬
>>
>> ------------------------------
>>
>> Date: Tue, 07 Jul 2009 18:16:14 -0400
>> From: Marc James Small <marcsmall@xxxxxxxxxxx>
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>>
>> On 7/7/2009 6:10 PM, Peter K. wrote:
>>> Well, IMO Van Stelten's newer coatings are better than the original,
>>> especially when one considers that the older one may not be
>>> completely
>>> intact. Just my opinion. That being said, the flare control has a
>>> lot
>>> to do with lens design as well. I know my Tessar handles flare
>>> better
>>> than my Planar or Xenotar. Not sure why, but it does. Same with some
>>> of the Leica lenses. Even though they were based on the Planar, the
>>> change in design, sometimes through the addition of an element,
>>> improved the way it handled flare. Why? I am not 100% certain but
>>> I am
>>> sure Richard can shed some light on this.
>>>
>> The Planar on our Rollei TLR's was a redesign of the original
>> six-element Planar of 1896. That was a grand lens but its light
>> transmission was rather low, so its designer, Paul Rudolph, went on
>> to
>> design the four-element Tessar in 1902. The Tessar is not as
>> satisfactory a lens by most optical standards as the six-element
>> Planar
>> but it was more usable. Rudolph later turned over these designs to
>> his
>> assistant, Ernst Wandersleb, who succeeded Rudolph as Chief of
>> Optical
>> Design at Zeiss in 1920. Wandersleb, in turn, entrusted these
>> designs
>> to his assistant, Hans Sauer, and specifically charged Sauer to
>> reconsider the Planar in light of lens coatings. It took Sauer 15
>> years
>> to produce the Carl Zeiss five-element Planar, a design intended for
>> coatings. The East Germans took Sauer's early work, left behind
>> when he
>> moved to Oberkochen, and produced the Biometar design.
>>
>> Marc
>>
>>
>> --
>> msmall@xxxxxxxxxxxx
>> Cha robh bàs fir gun ghràs fir!
>>
>>
>> ------------------------------
>>
>> From: Eric Goldstein <egoldste@xxxxxxxxx>
>> Date: Tue, 7 Jul 2009 18:20:57 -0400
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>>
>> Interesting comments, Peter. Some of flare control inherent in
>> design
>> is the number of air to glass surfaces, and also the design and
>> construction of the lens mount. Faster lenses are more prone to flare
>> than slower ones. Before coatings were around, these factors were
>> front and center for lens designers.
>>
>> But it would be interesting to hear from Richard or other
>> knowledgeable parties as to whether new single coating technology is
>> superior to the single coating methods of the 50s... you'd think it
>> would be and there would be some improvement after 50+ years...
>>
>>
>> Eric Goldstein
>>
>> On Tue, Jul 7, 2009 at 6:10 PM, Peter K.<peterk727@xxxxxxxxx> wrote:
>>> Well, IMO Van Stelten's newer coatings are better than the original,
>>> especially when one considers that the older one may not be
>>> completely
>>> intact. Just my opinion. That being said, the flare control has a
>>> lot
>>> to do with lens design as well. I know my Tessar handles flare
>>> better
>>> than my Planar or Xenotar. Not sure why, but it does. Same with some
>>> of the Leica lenses. Even though they were based on the Planar, the
>>> change in design, sometimes through the addition of an element,
>>> improved the way it handled flare. Why? I am not 100% certain but
>>> I am
>>> sure Richard can shed some light on this.
>>>
>>> Cheers,
>>> Peter K
>>>
>>> On Tue, Jul 7, 2009 at 10:07 AM, Eric
>>> Goldstein<egoldste@xxxxxxxxx> wrote:
>>>> Hi Peter -
>>>>
>>>> Not really commenting on which is better (single or multi) but
>>>> referencing Sander's original post asking for more modern
>>>> coatings...
>>>>
>>>>
>>>> Eric Goldstein
>>>>
>>>> --
>>>>
>>>> On Tue, Jul 7, 2009 at 12:56 PM, Peter K.<peterk727@xxxxxxxxx>
>>>> wrote:
>>>>> Yes, but with the age of most Rollei lenses it is a better coating
>>>>> (arguably) compared to one that is 50 years old. Is it worth it?
>>>>> Depends. I
>>>>> had a Rollei Wide Mutar and a Xenotar done. Both had worn
>>>>> coating so to me
>>>>> it was worth it. I did not like the color shift with the Xenotar
>>>>> so I sold
>>>>> it along with several Rolleis I had when I went through my
>>>>> Rollei reduction
>>>>> period.
>>>>>
>>>>> On Tue, Jul 7, 2009 at 9:49 AM, Eric Goldstein
>>>>> <egoldste@xxxxxxxxx> wrote:
>>>>>>
>>>>>> I believe John only single coats... at least this was the case
>>>>>> last I
>>>>>> checked...
>>>>>>
>>>>>>
>>>>>> Eric Goldstein
>>>>>>
>>>>>> --
>>>>>>
>>>>>> On Tue, Jul 7, 2009 at 12:39 PM, Peter K.<peterk727@xxxxxxxxx>
>>>>>> wrote:
>>>>>>> The only one I know of is Jon Van Stelten in Colorado. He will
>>>>>>> recoat
>>>>>>> and it
>>>>>>> will help if you shoot B&W. With color from my own experience
>>>>>>> you get a
>>>>>>> shift.
>>>>>>>
>>>>>>> On Tue, Jul 7, 2009 at 4:52 AM, Sanders McNew
>>>>>>> <sanders@xxxxxxxxx> wrote:
>>>>>>>>
>>>>>>>> I shoot a variety of older Rolleiflexes --
>>>>>>>> a 3.5E and a 2.8C getting most of the
>>>>>>>> work. Their weakness, in my use, has
>>>>>>>> always been veiling flare when shooting
>>>>>>>> a strongly backlit subject, or in other
>>>>>>>> conditions where the sun or a bright
>>>>>>>> reflection is in the frame.
>>>>>>>>
>>>>>>>> Does anyone onlist know when F+H
>>>>>>>> or its lens suppliers upgraded the lens
>>>>>>>> coatings on the TLRs? Are later TLR
>>>>>>>> models more effective at suppressing
>>>>>>>> veiling flare in these conditions? Do
>>>>>>>> I need to ask Austin for his GX to tame
>>>>>>>> this beast?
>>>>>>>>
>>>>>>>> Sanders
>>>>>>>> ---
>>>>>>>> Rollei List
>>>>>>>>
>>>>>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>>>>>
>>>>>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>>>>>> 'subscribe' in
>>>>>>>> the
>>>>>>>> subject field OR by logging into www.freelists.org
>>>>>>>>
>>>>>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>>>>>> 'unsubscribe'
>>>>>>>> in
>>>>>>>> the subject field OR by logging into www.freelists.org
>>>>>>>>
>>>>>>>> - Online, searchable archives are available at
>>>>>>>> //www.freelists.org/archives/rollei_list
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Peter K
>>>>>>> Ó¿Õ¬
>>>>>>>
>>>>>> ---
>>>>>> Rollei List
>>>>>>
>>>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>>>
>>>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>>>>> in the subject field OR by logging into www.freelists.org
>>>>>>
>>>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>>>> 'unsubscribe' in the subject field OR by logging into
www.freelists.org
>>>>>>
>>>>>> - Online, searchable archives are available at
>>>>>> //www.freelists.org/archives/rollei_list
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Peter K
>>>>> Ó¿Õ¬
>>>>>
>>>> ---
>>>> Rollei List
>>>>
>>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>>
>>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>>> in the subject field OR by logging into www.freelists.org
>>>>
>>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>>> 'unsubscribe' in the subject field OR by logging into www.freelists.org
>>>>
>>>> - Online, searchable archives are available at
>>>> //www.freelists.org/archives/rollei_list
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> Peter K
>>> Ó¿Õ¬
>>> ---
>>> Rollei List
>>>
>>> - Post to rollei_list@xxxxxxxxxxxxx
>>>
>>> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
>>> in the subject field OR by logging into www.freelists.org
>>>
>>> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
>>> 'unsubscribe' in the subject field OR by logging into www.freelists.org
>>>
>>> - Online, searchable archives are available at
>>> //www.freelists.org/archives/rollei_list
>>>
>>>
>>
>> ------------------------------
>>
>> Date: Tue, 07 Jul 2009 18:25:32 -0400
>> From: Marc James Small <marcsmall@xxxxxxxxxxx>
>> Subject: [rollei_list] Re: Lens coatings and veiling flare.
>>
>> On 7/7/2009 6:20 PM, Eric Goldstein wrote:
>>> But it would be interesting to hear from Richard or other
>>> knowledgeable parties as to whether new single coating technology is
>>> superior to the single coating methods of the 50s... you'd think it
>>> would be and there would be some improvement after 50+ years...
>>>
>>>
>>
>> Eric
>>
>> Of course it is. Call John Van Stelten for a technical
>> discussion. The
>> original lens coatings were both chemically poor and optically less
>> than
>> ideal: even early "hard" vacuum coatings were relatively soft and,
>> in
>> many cases, the coatings have gone from the front and rear elements,
>> leaving only the internal elements coated. And the precise ability
>> to
>> coat for a given wave-length took fifteen or twenty years to develop.
>>
>> Modern coatings are far more durable and the wavelength control is
>> far
>> better than it was a half-century back.
>>
>> Marc
>>
>>
>> --
>> msmall@xxxxxxxxxxxx
>> Cha robh bàs fir gun ghràs fir!
>>
>>
>> ------------------------------
>>
>> End of rollei_list Digest V5 #155
>> *********************************
>> ---
>> Rollei List
>>
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>>
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>>
>> - Online, searchable archives are available at
>> //www.freelists.org/archives/rollei_list
>>
>
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>
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