Yashica Pentamatic S
image by yashicasailorboy (Image rights)
The Pentamatic S is the final SLR from Yashica to use their early, proprietary bayonet mount, before beginning the 42mm screw-mount series. Notable features include a forward-facing (not angled) shutter release, a shoe for attaching a clip-on light meter, and a self-timer lever. Continuing Pentamatic features include the full range of shutter speeds 1-1/1000 seconds plus B and X (1/60) and the distinctive rewind crank concealed under the accessory shoe at the far end of the top deck. The diaphragm is semi-automatic, requiring the user to advance the film to return to the brightest aperture for viewing.
Notches on the shutter-speed dial allow the clip-on meter to couple to the selected speed, shown on its piggyback setting dial. Indicated f/stops are then manually transferred to the lens.
- Pentamatic S manual and accessories booklet (PDFs), from Mike Butkus's OrphanCameras.com
- May 1962 Pentamatic S (and Penta J) advertisement in Popular Photography magazine (Vol. 50, No. 5; pgs. 90–91).