Why not lock the exposure value before taking your eye away from the
finder? 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:owner-eos@;a1.nl] On Behalf Of Alex
Zabrovsky
Sent: Saturday, October 19, 2002 3:50 PM
To: EOS list
Subject: FW: EOS3 viewfinder and eyepiece shutter


This is the problem. Once the metering values generated by the camera
were affected by the viewfinder light leakage, the final exposure would
be improper. If say, metering through the lens produced 1/125 @ f/8 with
blocked finder, uncovering the eyepiece would produce, say, 1/200 @f/8
(we are working in Av
mode) which is about half stop underexposure. During the exposure, even
though the finder leakage will be blocked by the mirror in it's raised
position, the actual exposure values will be 1/200 @ f/8 (those the
camera determined just prior the mirror is flapping up).

Regards,
Alex Z


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