17. For a non-flash picture (through a window), the exposure is started by pressing S1 only.

The end-exposure command is given either when the photocell sees 100% of the necessary light for a proper exposure or when the internal clock reaches 396 ms.

Camera Operating/Exposure Sequence Diagram

section 3 - model 636 theory of operation

1. This is the Model 636 Camera which is one of a new line of 600 cameras.

2. The Model 636 shares many of the features of the 635 and 640 Cameras. Among these are: Fixed Focus Lens, Electronic Shutter, Film Shade, Lighten/Darken Control, Empty Pack Lockout, Film Counter, Carrying Strap and a Fill Flash Capability.