The Canon IVSB was after the IIB the second most important rangefinder camera model in Canon’s history. It was the first Canon to make an appreciable impact on overseas markets. Since like all it Canon contemporaries it was sturdy and reliable, that impact was a decidedly positive one.
Specs:
Type : 35mm focal plane shutter camera.
Picture size: 24x36mm
Lens : Canon 50mm F1.8 rigid lens.
Lens mount : Universal 39mm threaded mount.
Shutter : Two axis horizontal-travel focal plane shutter with cloth curtains. Six axis rotating dial for T/ 1, ½ , ¼ , and 1/8 sec, and single axis rotating dial for X, B, 1/25, 1/40, 1/60, 1/100 , 1/200 , 1/500, 1/1000 sec.
Flash sync : FP and X sync. With flash rail.
Viewfinder : Coincidence rangefinder integrated with Galilean viewfinder rotatable to set one of 3 magnifications.
Film loading& advance : After baseplate removal, drop-in bottom film loading. Advances with camera knob.
Frame counter: Manually set from 39 to 0 at base of camera-top rewind knob. Film speed indicator dial on to P of rewind knob.
Film rewind: Camera top knob.
Dimensions : 140x72x67mm
Weight : 790 grams.