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Message: <blockquote data-quote="okulo" data-source="post: 504378" data-attributes="member: 40687"><p>The light here has been pretty poor so I didn't get around to do anything in a controlled way but I did a quick test with four apertures; f4.5, f8, f16 and f29 each using the viewfinder and live view with eye piece cover on and off - 16 photos in all. There was an exposure discrepancy of about one stop between the highest exposure and the lowest exposure but there was no pattern as far as live view vs viewfinder or eye piece cover on vs off. The only noticeable difference was with the f-stop with similar results to those already found - so that's my theory out of the window, I suppose, but I also took some more live view fungus photos today and they are overexposed.</p></blockquote><p></p>