I just checked my Zuiko 85 f2 and it shows a full stop difference when metered
through my OM-4. can't speak to any other lenses, but at least with this lens
it appears to be afull stop difference.
I suspect, as others have pointed out that it really is a non-issue. I
certainly don't worry about it. What actually would be more informative is
wether there is a full stop difference between say a 100 f2.8 lens and a 100 f2
lens! I suspect that their really is. I certainly have never worried about
this myself.
Jim Couch
Dogbreath wrote:
> He said, "Yeah, that Zuiko glass is nice - all those fast primes are great.
> But you know, it disappoints me that none of them are actually f2 at their
> widest aperture. Look closely at the aperture scale and you'll see that the
> end of the scale is marked with a white line which *precedes* f2. You can
> use the camera's meter to corroborate this. You'll see that an adjustment
> from 2.8 to 2 by turning the aperture ring to its wide open position does
> *not* gain you a full stop. All of my coveted, fast primes were the same
> way - the 21, 24, 28, 50 Macro, and 100. I couldn't believe it. It's one of
> the reasons I'm getting out."
>
SNIP
>
>
> So, to all of you, I pose this question: What gives???
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