[rollei_list] Re: Hello (again), new Rollei TLR

I have a number of meters - a somewhat innacurate
ancient Weston, a Weson Euromaster II, a Lunasix F (UK
designation), a Pentax Spotmeter V and a Digisix. My
most used meters are the Euromaster and the Digisix.
All are excellent meters.

Nick

--- Allen Zak <azak@xxxxxxxxxxxxxxx> wrote:

> Well, I have used Norwood Director/Sekonic Studio 
> for most of my 
> photographic life and still like them.  Influenced
> by its widespread 
> popularity, I tried a Weston Master V for a time but
> never really 
> warmed to it.   About 30 years ago I sprung for a
> Gossen Luna Pro which 
> become my main meter.  Several years ago I lost the
> Luna Pro and 
> replaced it with a Digisix that became my favorite. 
> Even after the 
> Luna Pro eventually found its way home, the Digisix
> still gets the most 
> use.  I like it for its compact size and weight,
> plus it keeps time, 
> reads temperture, casts my horoscope and suggests
> stocks of interest.  
> The Luna Pro and Studio still get some use, but
> spend most of their 
> time in a drawer these days.  Adjusted for
> indiividual characteristics 
> and used properly, all indicate accurate exposure
> and are easy to use.
> 
> Allen Zak
> 
> On Apr 30, 2005, at 12:28 PM, Peter K. wrote:
> 
> > Just out of curiousity, why do you use Weston
> meters? Because tey are
> > batteryless? I used to use a Norwood Director, but
> hated it. I went to
> > digital with a Minolta IIIf years ago and never
> regretted it. Now I
> > use a Sekonic L508. Simple and easy and far more
> accurate then the
> > Director ever was.
> >
> > Peter K
> >
> > On 4/29/05, Jerry Lehrer <jerryleh@xxxxxxxxxxx>
> wrote:
> >> Richard,
> >> =20
> >> I am not surprised at your statement, I am
> ASTOUNDED!
> >> At one time I compared all my Weston meters, to a
> Luna
> >> Pro.  All the Westons had been checked out by
> QLM.
> >> They were in agreement after the corrected film
> speeds
> >> were used (Weston vs. ASA) The Westons ranged
> from
> >> the pre-Master 650 to the Euromaster II, except
> for that
> >> POS Master 6 (Japanese made toy)
> >> =20
> >> Jerry
> >> =20
> >> Richard Knoppow wrote:
> >> =20
> >>> ----- Original Message -----
> >>> From: "Jerry Lehrer" <jerryleh@xxxxxxxxxxx>
> >>> To: <rollei_list@xxxxxxxxxxxxx>
> >>> Sent: Friday, April 29, 2005 4:32 PM
> >>> Subject: [rollei_list] Re: Hello (again), new
> Rollei TLR
> >>>
> >>>> Richard,
> >>>>
> >>>> I have been using Weston meters since before
> you were
> >>>> born, and I did not have under exposures when I
> used
> >>>> the meter correctly.  I have used Weston, ASA,
> DIN and
> >>>> Scheiner speeds with the corresponding dials.
> >>>>
> >>>> The first Weston meter I used was in 1936, and
> it was spot
> >>>> on
> >>>> when I sold it this year.
> >>>>
> >>>> Jerry
> >>>>
> >>>    Check the Weston against another refleced
> light meter on
> >>> a large flat surface. A gray card is not
> necessary because
> >>> one is only comparing the two meters for a given
> amount of
> >>> light. Laying them on the surface of a light
> table also
> >>> works. You will find that the Weston will give
> you shorter
> >>> exposures when the speed setting is made to the
> "equivalent"
> >>> ISO speed. This is the next lower number on the
> Weston
> >>> scale. When the original ASA system was in use
> this worked
> >>> fine because that system had a 2.5 times fudge
> factor built
> >>> in.
> >>>    I was somewhat surprized at this myself but
> have found it
> >>> consistent on several Weston meters which are
> calibrated in
> >>> Weston speeds.
> >>>    It is interesting to compare the Kodak speeds
> with Weston
> >>> speeds. Kodak speeds were measured using the
> minimum
> >>> gradient method of L.A.Jones and later adopted
> by the ASA
> >>> but with the addition of the fudge factor. Kodak
> Speeds are
> >>> approximately double the current ISO speeds and
> were about 4
> >>> times the old ASA speeds (with safety factor).
> Here is a
> >>> comparison of some film speeds as given in
> c.1944 Kodak
> >>> literature:
> >>>
> >>> Film          Kodak     Weston
> >>> Plus-X        250        50
> >>> Portrait Pan  200        40
> >>> Tri-X         800        160
> >>>
> >>>     Weston speeds may not be exactly a factor of
> 5X from
> >>> Kodak speeds because Weston also classified
> speeds by
> >>> groups.
> >>>
> >>>     The Weston speeds were determined by making
> a D-Log10E
> >>> curve of film developed to a a gamma typical for
> the film.
> >>> The measurement point was the log exposure point
> at which
> >>> the density was equal to the gamma, i.e., for a
> gamma of 0.7
> >>> the speed point is measured at a density of 0.7.
> >>>
> >>> ---
> >>> Richard Knoppow
> >>> Los Angeles, CA, USA
> >>> dickburk@xxxxxxxxxxxxx
> >>>
> >>> ---
> >>> Rollei List
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> >> =20
> >
> >
> > --=20
> > Peter K
> > =D3=BF=D5=AC
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