Frame Handles
Frame handles are extra frames at the beginning and the end of every shot, the exact number will vary from one application to the next, which are used primarily when preparing original material for optical printing, such as the Zero Cut method of blow up, or the creation of a superimposed title, etc. The purpose they serve, in the case of zero cut, is to make sure the registration pin of the printer is not grabbing a splice, which can cause the image to wobble. With opticals they are often used merely to avoid printed-in dirt, which is much more prevalent close to a splice where bits of film cement can flake off.