medium format images make perfect 3-D from 2"X3" to 36"X48". Remote shutter release cables trigger the shutters. A vertical 6X4.5 cm is generally the usable negative area. The overlap of the 5 images creates vertical format pictures. We recommend that subjects be photographed from 8' to infinity. The cameras are F4, 5-22, speed 1/15 to 1/250 sec. with 75mm lens. The system uses standard 120 film. Tripods are recommended, but the system weighing only 8 lbs. is usable hand held. Multi-Camera Camera cost: $3000 US, limited yearly supply. The Flip! 12" Slider Attach your still camera to a Flip! slider and mount the slider to a tripod. Take 5 to 20 photographs of a non-moving subject , moving the camera between shots from the far left to the far right, taking pictures at equal intervals on the slider- 1/2" for closups, 3/4" for medium shots, and 1" to 2" for a distance of 20' to infinity. Each picture taken at a different position sees the subject at a different angle. As you slide the camera across the slider and take pictures, each picture is seeing the subject at a different angle. The pictures at the far left and far right will match the least, while, as a generalization, the center 75% of the images will overlap. The diffrent angles and the overlap create perfect 3-D when processed by FLIP! 2.0, printed and placed behind a 3-D lens. Slider cost: $300 US. Supplies limited.