4

After some digging, I think the problem was caused by both adapters tripping a small switch inside the lens socket. Here (this is not EOS 1v body): I found this article describing the issue (it's quite long, search for "Camera locks up with the manual focus lens installed"). Basically, once the switch is engaged, the camera will expect an electronic lens. ...


2

I also don't think it is the shutter, because if it was, wouldn't the white stripe be more parallel to the border? Shutter issues don't always manifest themselves with light bands exactly parallel to the edge of the frame. If the second curtain is sticking slightly on one side of the bottom of the film plane (top of the inverted image) before closing, it ...


1

Although I can't recall ever seeing it officially confirmed by Canon, I think the general wisdom back in the day was that the laser-matte screens with a Roman numeral in the name worked better at C.Fn-0 setting of '1', while those without any Roman numerals did better with C.Fn-0 set to '0' when used on cameras introduced before the specific screen in ...


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