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The Asahi Pentax AP was the first 35mm SLR produced by the Asahi to use a pentaprism viewfinder. The camera is named by collectors, like me, Pentax AP but actually that name was never officially documented.
In 1958, the Asahi Pentax K, a variant of the AP was produced. The K upgraded the camera with a semi automatic diaphragm. Both the Asahi Pentax and Pentax K were hand built cameras produced in Japan.
Film Type: 35mm
Lens Mount: M42 Screw Mount
Viewfinder: Fixed SLR Pentaprism
Shutter: Cloth Focal Plane
Speeds: B, 1 – 1/500 seconds for the AP and, 1 – 1/1000 seconds for the K
Exposure Meter: None
Weight: AP with lens 726 g and 577 g body only. K was a little heavier 585 without lens.