Polaroid 636 User Manual

11. The built-in flash is an electronic quench-type flash. It can provide a full output of about
340 zonal-lumen seconds (ZLS) to illuminate a scene or it can be shut down early to
provide less light to the scene. The way the camera decides to provide full or partial light
output will be discussed later.
12. Whether or not the flash provides full output, the main capacitor delivers the same amount
of energy. Therefore, if the flash is ordered to shut down early, some means must be found
to dissipate the remaining energy in the circuit. This remaining energy is diverted through a
thyristor (TH1) on the strobe board.
18

Polaroid 636 Specifications

General

Film Format	600 Film
Lens	Fixed focus plastic lens
Focus Range	1.2m to infinity
Shutter	Electronic shutter
Flash	Built-in flash
Viewfinder	Optical viewfinder
Battery	Integral to the film pack