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[OM] Exposure accuracy with OM Zuikos on small sensor digital

Subject: [OM] Exposure accuracy with OM Zuikos on small sensor digital
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxx>
Date: Tue, 12 Apr 2005 07:51:36 -0400
See Wrotniak's site here: 
<http://www.wrotniak.net/photo/oly-e/any-lens.html>
for an excellent discussion of exposure accuracy using 35mm lenses on 
the E-1 (and probably other small sensor digitals).  Boils down to small 
mirrors forming another "effective" aperture so the full width of the 
light beam on the 35mm lens doesn't get to the exposure sensor in the 
viewfinder.  Beam narrows as you close down the lens so exposure 
measurement eventually gets correct.

Chuck Norcutt


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