No, but the corners of the image in the viewfinder were considerably darker than they should have been. Though when one looks at real world image, not the uniformly lit and colored wall in their office this effect is hardly noticeable on any of the cameras.
There is something about the M/A35/2.8. MX with SE-20 or Beattie Intenscreen also suffered from heavy vignetting with the viewfinder too when using this lens. None of my other lenses have similar problem.
Would the magnifier make any difference? Or is it unsuitable for general photography?
I have found the usability of magnifier (mine is Magnifier F) is much depends on the viewfinder quality. If the viewfinder sucks, the magnifier doesn't provide much help. Also, the viewing quality of the Magnifier F is much better when not wearing glasses.
Btw, based on the spec of these 2 magnifiers, the FB seems to be made bigger so it can be flipped up even with AF cameras. The F can't (can do only with small prism cameras like MX). But I have never seen the FB so I cannot be 100% certain.
regards, Alan Chan
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