[LRflex] Re: Query: 35mm f2.8

Hi Mattia,

Try looking through the lens - oil if it is present is usually visible on=

the aperture blades. The results you posted look similar to the effect I
had on an old 50 f1.4 which had the problem  - oil was clearly visible on=

the blades and gets onto the optical surfaces (flare, rainbow colours and=

lower contrast in bright conditions) - it was cleaned and sold - I replac=
ed
it with the 80 f1.4. 

Best regards
Keith

>-- Original Message --
>From: Mattia Gilardi <mattiag@xxxxxxx>
>Subject: [LRflex] Re: Query: 35mm f2.8
>Date: Tue, 24 Oct 2006 16:12:05 +0200
>To: leicareflex@xxxxxxxxxxxxx
>Reply-to: leicareflex@xxxxxxxxxxxxx
>
>
>Hi,
>I had thought about that, but I experience same problem with film,  
>and don't experience it with digital and other "old" lenses.
>
>Regarding shooting into the sun, you are right, it is not at all an  
>ideal situation.
>My Zeiss Y/C 28/2.8 however, just to pick a quick and cheap example,  
>is very good in these type of shoots: almost no flare, and scarce  
>ghosting that you can avoid with little framing changing.
>
>I must point out that these are the few shoots I had with little  
>problems, overall the 35/2 R is wonderful.
>I'm only curious about having a somewhat faulty one, that might need  
>CLA.
>
>Regards,
>Mattia
>
>
>On Oct 24, 2006, at 3:43 PM, Slobodan Dimitrov wrote:
>
>> You might consider that it could be reflection off the rear element
>> on the sensor. A common problem with Canon and lenses that do not
>> have the new coating on the rear element, Canon lenses including.
>> However, shooting into the sun has always been the least desirable
>> manner of making a photograph, with any lens.
>> The night shoot is something I've experienced myself with the 35mm
>> Elmarit, 1st version, with the highlights getting blown into the
>> shadow detail. An effect I liked on BW film when taking shoots at
>> twilight.
>>
>> Slobodan Dimitrov
>>
>>
>>
>>
>> On Oct 24, 2006, at 6:06 AM, Mattia Gilardi wrote:
>>
>>>
>>> On Oct 23, 2006, at 9:48 PM, keith.r.edwards@xxxxxxxxxxx wrote:
>>>
>>>> Chris,
>>>>
>>>> I don't think the lens should give the result you describe (at
>>>> least not
>>>> to the extent you seem to have experienced) so I'll offer another
>>>> explana=3D
>>>> tion
>>>> to the list of 'possible causes' - is there any evidence of oil on
>>>> the bl=3D
>>>> ades?
>>>> The one time I saw this sort of thing happen the lens (a 50 mm
>>>> f1.4) had
>>>> gone oily - lowers contrast and might lead to the sort of effect
>>>> you desc=3D
>>>> ribe.
>>>> If it is oily investigate getting it cleaned - if you don't need f2
>>>> it wi=3D
>>>> ll
>>>> be nearly as good and even if you plan to sell it it will add value.=

>>>>
>>>> Best regards
>>>> Keith
>>>>
>>>
>>> Hi,
>>> first of all, since this is my first message here, I must thank you
>>> all for providing invaluable content to be lurked by me in the past
>>> months :-)
>>> Second, I apologize for my bad English.
>>>
>>> I think I have a similar problem in my 35/2 R, late model.
>>> In difficult situations, it is very flare prone, and a very strange
>>> one. Sometime ray of light are "curved", sometime are similar to a
>>> rainbow.
>>> It is also very sensible to ghost with sun on field or near the
>>> border of image, and it shows very noticeable red ghosts.
>>>
>>> This is true with both film (on a R6.2) and digital (on a Canon 5D).
>>>
>>> The serial number is 326xxx, do you think this is normal for this
>>> lens, and younger ones are better coated or something, or I should
>>> send my lens to Solms for checking/cleaning, etc.?
>>> I think so because I have other lenses, even wider, that perform
>>> much, much, better in similar situations.
>>>
>>> Here are some example, some very bad picture that however show the
>>> problem.
>>> All three taken with 5D, unretouched, just RAW converted (I repeat,
>>> though, that with film is the same. Just don'have a scanner :) )
>>> Sea ones at f8 and night one more open. All three with hood extended.=

>>>
>>> http://homepage.mac.com/mattiag/35summi001.jpg
>>> http://homepage.mac.com/mattiag/35summi002.jpg
>>> http://homepage.mac.com/mattiag/35summi003.jpg
>>>
>>> Best regards and thanks,
>>> Mattia Gilardi
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