> Can one see thru the prism/viewfinder on an SLR with a pinhole drilled > body cap?
principally: yes. but you need a considerable amount of light. > Does one need to cover the eyepiece on an SLR conversion to prevent > stray light entering thru the eyepiece? Depends on the quality of the camera a bit, imho. The problem of giving false measurement with integrated light meters should not be that great with pinholes (as you probably do not use the automatics), on the other hand I'm not comfortable with the idea that the light input through the viewfinder is several thousand fold more than that through the "lens" .. I tend to cover the eyepiece when exposing. At least, it surely does no harm. cheers martin -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net GMX Tipp: Machen Sie Ihr Hobby zu Geld bei unserem Partner 1&1! http://profiseller.de/info/index.php3?ac=OM.PS.PS003K00596T0409a