Figure 1-3 Opened for picture taking
The subject is viewed and focused throught the taking lens, a mirror, a Fresnel viewing screen (with
When the exposure is made, the image must be transferred from the viewing system to the surface of the film in accurate focus. To accomplish this, the shutter closes and the viewing screen swings out of the optical path which is then diverted by a mirror to the film surface. These two paths are described in greater detail elsewhere in this section.
The exposure is made following the viewing screen / mirror swing. The screen then returns to the viewing position and the automatic mechanism ejects the exposed sheet of film. development takes place outside the camera and can be observed by the operator. As soon as the print is ejected, the mechanism completes its
cycle to prepare for the next exposure. Following thenth exposure, the flash circuit is inhibited until a fresh film is inserted. Normal operation will resume when the camera is reloaded.
B. CAMERA OPERATION
The following paragraphs describe the electro- mechanical events that occur in normal operation. the purpose of this desciption is to acquaint the reader with the manner in which the various functions are accomplished. Detailed analysis at component / sub assembly level appears in Section II.
1. Opening the Camera
When the