110 and Disc films Instant picture cameras, though cumbersome by comparison, have different advantages. They eliminate the wait while films are being printed. Immediately after you press the shutter, the camera ejects the print. The picture begins to appear within a few seconds and is fully developed in a matter of minutes. These cameras are fun to use at parties and family occasions because everyone can see the results immediately, and if a picture is a failure there is still a chance to take another.
Local laboratories can make extra copies of the same image.
When the finest quality is more important than ease of operation, some photographers prefer to use a larger film size than 35mm, even though this means a correspondingly larger camera. Cameras that use this film are bulkier, heavier and mostly costlier than smaller formats, and are usually manually operated rather than being automated. Advanced photographers prefer them, though, because they are not too large to be hand-held and yet they produce a negative of fine quality, capable of showing sharp detail even when the prints need to be blown up into pictures many times the size of the original negatives. These take film supplied in individual sheets, usually no smaller than four by five inches in size. As a result, the cameras are somewhat unwieldy and require real expertise.