Topcon R
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The Topcon R is a 35mm SLR from Tōkyō Kōgaku which appeared in 1958.[1] It is notable as an early Japanese SLR incorporating an instant-return mirror (following on from the Asahiflex). In addition to adopting the Exakta lens mount, it follows in offering a pentaprism which is detachable and exchangeable with a waist-level viewfinder hood. Likewise, the supplied 58mm f/1.8 Auto-Topcor uses a pressure activated diaphragm but with semi-automatic action (it is manually reopened with a lever atop the lens).
Enlarger-manufacturer Beseler also began offering this camera under its own badging as the Beseler B Topcon.[2]
Notes
- ↑ It is advertised and noted as new in the October, 1958, Modern Photography magazine (Vol. 22, No. 10).
- ↑ It is advertised in the April, 1959, Popular Photography (Vol. 44, No. 4).
Links
The Topcon R manual and Beseler B Topcon manual are posted at Mike Butkus's OrphanCameras.com
