On 19/10/02 at 21:50, [EMAIL PROTECTED] (Alex Zabrovsky) wrote: > 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
You could check the camera's metering of the same scene with the camera on a tripod. Using Av metering (so that you can lock the exposure to check it) and some predictable metering pattern such as centre-weighted, meter the scene and note the camera's exposure settings. Then meter the scene again with your head away from the viewfinder and lock the exposure, and while it is still locked, look through the viewfinder or at the lcd and see if it is any different this time. You could even try this with a flashlight shining into the viewfinder and see how much difference if any this makes. Joe B. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
