I practice photography only as a hobby. Perhaps a pro or semi-pro photographer can come along and give you a better answer. 35mm refers to the film negative size. Film negatives use to vary quite a bit but then 35mm became the standard. The larger th...
Just like there is a mask for the 6x4.5 there is also a msk you can get for the 35mm to avoid exposure on sprocket holes. site that shows how to shoot 35mm with holes being exposed: site where you can buy 35mm kit with mask;
Generally speaking, when looking through the viewfinder, there will be a yellow square or diamond superimposed on the main viewfinder image. When this yellow box is coincident(lines up with) the main viewfinder image, the camera is in focus. This ass...