Ghosting: Difference between revisions

'''Adjusting shutter timing:''' Most projectors have a shutter adjustment knob. On [[Simplex X-L|Simplex X-Ls]] the knob is on the top of the projector head, and on the [[Century]] the knob is on the front of the projector head (on some models the knob is on the gear side of the projector). Use a SMPTE PA-35 test film or equivalent to check for ghosting. Most image test films will have a white box inside of a black box - adjust the shutter knob until the white box does not spill above or below. If no test film is available, any piece of film with text on a solid colored background will do (the MPAA Green Band from a trailer works great for this purpose).