[Canon] Demi C | April 1965
Demi C
The behind-the-lens Lens Shutter enabled interchangeable lenses to be attached on a screw-on mount.
Two interchangeable lenses were available: the normal SD 28mm lens and the telephoto SD 50mm f/2.8 lens. The viewfinder had frames to match the lenses. Otherwise, the camera was the same as the original Demi.
- Type: 35mm Lens Shutter zone-focusing half-frame camera with threaded lens mount for interchangeable lenses
- Picture Size: 24 x 18 mm
- Normal Lens: Canon SD 28mm f/2.8 (5 elements in 3 groups), SD 50mm f/2.8 (7 elements in 6 groups)
- Shutter: Seiko-sha L with behind-the-lens light value program. EV 8 (f/2.8, 1/30 sec) to EV 17 (f/22, 1/250 sec.) and B. X-sync flash.
- Viewfinder: Kepler finder with 0.41x magnification, 90% coverage, and frame for SD 50mm lens.
- Lens Focusing Ring: To match zone focusing marks. Focusing range from 0.8 m to 15 m (infinity) with SD 28mm lens, and 1.2 m to 15 m (infinity) with SD 50mm lens.
- Exposure Adjustment: Selenium photocell meter with moving needle and program to determine correct exposure with the shutter speed and aperture combination. Metering range of EV 8 – 17 (at ISO 100).
- Film Loading & Advance: After opening camera back, insertion onto spool. Advances with camera-top lever. (145 single or partial strokes with extra 20 stroke)
- Frame Counter: Counts up. Resets automatically when camera back is opened.
- Film Rewind: Camera-top crank
- Dimensions & Weight: 115 x 68 x 37 mm, 370 g (with 28mm) or 420 g (with 50mm)