8dbb5d98_Film_Cameras__3
[0] Automatic Film Advance [1] This allows you to take pictures more quickly. Not a necessity for most work, but widely available. [4] It's nice to have the option, even if you don't add it until later. A wired or wireless remote also helps reduce camera shake when the camera is on a tripod. [3] 
Remote Control
Film Cameras
3