Yes this is a timely discussion. I too have been having some problems with
my OM 1n. After I post this I'm going outside to test the meter again, but
my feeling is that it is pretty close (judging by my constant attempt to
prefigure exposures using the sunny 16 rule). I'll also test it against my
OM 2n.
But the related issue question I wanted to raise is about shutter speeds.
Lately I've been doing more hand held shooting w/ my big and bulky
80-200/2.8, which necessitate speeds of 500/1000. But the negs I've been
printing are quite thin--compared to those shot with shorter lenses at
slower speeds. Logically I would expect the opposite to be the case but no.
Is it possible that the fast speeds are even faster than they should be? If
not I'll have to go back to the drawing board/darkroom and recallibrate my
brain.
glen
-----Original Message-----
From: MorrisMini@xxxxxxx <MorrisMini@xxxxxxx>
To: olympus@xxxxxxxxxxxxxxx <olympus@xxxxxxxxxxxxxxx>
Date: May 26, 1999 7:16 AM
Subject: [OM] Re: Exposure meter corrections
>Hi Folks:
>
>Gary Reese's post on the inaccurate metering of OM-1's is very timely. I
>have been very dissatisfied with my exposures (seemingly always
>over-exposed), even after having a CLA on my OM-1n less than a year ago.
>I've been reading John Shaw (his book on close-ups at the moment) and he
>deals with exposure and calibrating your meter in the very first chapters
>because he feels (knows) it is that important. In case you haven't read it
>(sorry to bore you if you have), a thumbnail sketch:
>
>On a clear sunny afternoon, set your camera @ f/16 and the same shutter
speed
>as the ISO in your camera (i.e. 1/30 sec. for ISO 25). Aim your camera at
a
>45° angle to the north sky, and then turn the film speed dial until your
>meter registers the correct exposure. That is the "correct" setting for
that
>particular film, but of course test slide will either bear this out or
prompt
>a slight correction.
>
>I did this with the OM-1n, and low and behold, for Kodak's E100S, my camera
>setting was 250!! Test slides at that speed displayed nice, rich colors
>(finally!), with very little blocking of shadows. I am not entirely
>confident with it yet, and will probably shoot @ ISO 200 and bracket until
>I'm convinced, but I was amazed. Shaw says almost all camera manufactures
>err heavily on the over-exposure side in their specs. His personal cameras
>(Nikons) are all different, but settings of 50 for ISO 25 film (a full
stop)
>are right in the ballpark. He also states that ISO scales on cameras
should
>probably be A B C D E--pick the one whose results you like best--rather
than
>cold hard numbers that seem to dictate duplicating settings marked on film
>canisters.
>
>Any thoughts on this? My OM-2n seems much closer, but I haven't had time
to
>run the test slides yet. The trusty old Weston agrees, too, for the most
>part.
>
>-Tim Clark
>
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