Focal-Plane Shutter


focal-plane shutter

[′fō·kəl ‚plān ′shəd·ər] (optics) A camera shutter consisting of a blind containing a slot; the blind is pulled rapidly across the film, exposing it through the slot.

Focal-Plane Shutter

 

a camera shutter positioned near the focal plane of the lens, consisting of two opaque blinds that form a slit of variable width or a single blind with a slit cut in it.