Slides and Negatives Scanning - 35mmWhat Is a Frame? Our pricing in this category is based on a per frame scanned system. A frame is ONE picture that was captured at the time the photograph was taken. In the case of slides, they come already encased in their individual frames, so one slide = one frame. However, negative film tends to come in rolls of either 24 or 36 frames. At the time of the developing process, these films were cut up in strips of 4 or 5 frames each and returned back