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Re: [OM] 50mm: Which one to keep?

Subject: Re: [OM] 50mm: Which one to keep?
From: Gary Reese <pcacala@xxxxxxxxxxxxx>
Date: Fri, 23 Mar 2001 15:06:23 -0800
Bernd:

The only way to answer you question:
"Used under average light conditions, will the 1.8's I have perform
better than the (older) 1.4 I have?"
is for you to try them out on a subject.  Then pick the one with the
results you liked best. My tests are valid only for the lens that I
tested and unless I indicated differently in the Notes section below a
particular lens, the grades between lenses don't become significantly
different until they are a full letter grade apart (example: A vs. B,
but no A- vs B). That is because I can't subjective assign grades any
closer than that until I immediately view one shoot after seeing another
(what I call a paired comparison). I've done that to compare the 50mm
Leitz Summicron-M, and I'll soon post a paired comparison of the 90mm
f/2 Zuiko with a 1980 era 90mm f/2 Suimmicron-R. Hint: they are a
virtual tie.

The updated lens tests show a correction in the serial number for the
best performing 50mm f/1.4 Zuiko.  It is the fully multicoated one with
numbers >1,100,000. The 50mm f/1.4 Zuiko MC lenses from about 770,000 to
1,100,000 have less than full multicoating and appear to have marginally
"poorer" (but still quite good) performance than the >1,100,000 and
significantly better performance than the <770,000 G.Zuikos.

Gary Reese
Las Vegas, NV


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