Quote Originally Posted by Chan Tran View Post
On my cameras a Nikon F5 and N2020 which have this windows I can see the at least the ISO and the number of frames. With some film I can even see the film type thru the window. I would not want to glue something on my camera though.

I missed an important detail.The holders are actually glued to self adhesive black vinyl, then stuck to back of the camera.This vinyl peels off leaving no mark.