Monday, January 17, 2011

Ricoh A-100

The Ricoh A-100 was an automatic, 35mm, SLR camera launched by Ricoh in 1980. The A-100 featured aperture priority AE mode and electronically-controlled focal plane shutter. The camera was equipped with multi-coated XR Rikenon 50mm f/1.4 standard lens made of 7 elements arranged in 6 groups, but it could also use other Rikenon K mount interchangeable lenses. The A-100 was powered by two 1.5V silver oxide batteries (JIS G13, Mallory MS76, or Eveready S76).

Specifications for the Ricoh A-100

Type: 35mm, aperture priority AE, SLR film camera
Lens mount: K bayonet mount
Lens: XR Rikenon 50mm f/1.4, or a XR Rikenon 50mm f/1.7 prime lens
Shutter: electronically-controlled, vertical-travel, Copal CCS-E focal plane shutter
Shutter speeds: from 1/8 to 1/1000th of a second in automatic electronic shutter mode; from 1/4 to 1/1000th of a second in manual electronic shutter; manual mechanical shutter speed only at B (bulb) and X (1/90th)
Viewfinder: fixed eye-level pentaprism viewfinder with exposure meter needle
Focusing screen: diagonal split-image spot in microprism band surrounded by Fresnel field
Film advance: mechanical via single stroke film advance lever
Weight: 545 g (body only)