10th Anniversary 2012-2022
More than just a camera lens database

Pentax-A series lenses

To take full advantage of the Super A's six exposure modes, the new series of 'A' lenses were developed especially for the Super A and future Pentax cameras.

'A' lenses have a new mount. Called the KA mount, it features extra electronic contacts for transmission of aperture information and automatic control of aperture settings. These contacts enabled the Super A's brain to determine the maximum aperture and the aperture currently set on the lens. 'A' lenses also have an Auto "A" seting on the aperture ring. When the ring is set to Auto, the camera can automatically change lens aperture in the Programmed AE and Shutter-priority AE modes.

In these modes, aperture settings must be adjusted in the very brief instant between shutter release and exposure. Through high technology, 'A' lenses meet the challenge, providing smooth, swift and accurate aperture control.

A Series lenses, with their KA mounts, can also be used on all other Pentax K-mount cameras.

A Series lenses not only offer electronic and mechanical innovations for automatic aperture control. The optical technology and image quality of 'A' lenses also reflect a new standard of superiority. Experience and data gathered during decades of lens production, the latest computer aided lens design and grinding techniques, plus the unique Pentax process of Super Multi Coating (SMC) - all these factors combined to make A Series lenses as exciting as the Super A.

35mm full frame, Manual focus, For SLR cameras (42)
3.5 smc Pentax-A 15mm F/3.5Pro 1984 
2.8 smc Pentax-A 16mm F/2.8 Fish-eye 1984 
2.8 smc Pentax-A 20mm F/2.8 ⌀67Pro 1985 
2.8 smc Pentax-A 24mm F/2.8 ⌀52 1983 
4.0 smc Pentax-A 24-50mm F/4 ⌀58 1983 
2.8 smc Pentax-A 28mm F/2.8 ⌀49 1983 
2.0 smc Pentax-A 28mm F/2 ⌀49 1983 
3.5 smc Pentax-A 28-80mm F/3.5-4.5 ⌀58 1985 
3.5 Pentax-A 28-80mm F/3.5-4.5 ⌀58Budget series 1989 
4.0 smc Pentax-A 28-135mm F/4 ⌀77 1983 
2.8 smc Pentax-A 35mm F/2.8 ⌀49 1983 
2.0 smc Pentax-A 35mm F/2 ⌀49 1983 
4.0 smc Pentax-A 35-70mm F/4 ⌀58 1983 
3.5 smc Pentax-A 35-70mm F/3.5-4.5 ⌀49Push/pull 1985 
4.0 smc Pentax-A 35-80mm F/4-5.6 ⌀49 1994 
3.5 smc Pentax-A 35-105mm F/3.5 ⌀67 1983 
3.5 smc Pentax-A 35-135mm F/3.5-4.5 ⌀58Push/pull 1986 
3.5 smc Pentax-A 35-210mm F/3.5-4.5 ⌀67Push/pull 1986 
2.8 smc Pentax-A 50mm F/2.8 Macro ⌀491:2 @ CFD 0.235m 1983 
2.0 smc Pentax-A 50mm F/2 ⌀49 1985 
1.7 smc Pentax-A 50mm F/1.7 ⌀49 1983 
1.4 smc Pentax-A 50mm F/1.4 ⌀49 1983 
1.2 smc Pentax-A 50mm F/1.2 ⌀52 1983 
1.2 smc Pentax-A 50mm F/1.2 Special ⌀52 2000 
4.0 Pentax-A 70-200mm F/4 ⌀58Push/pullBudget series 1989 
4.0 smc Pentax-A 70-210mm F/4 ⌀58Push/pull 1983 
4.7 smc Pentax-A 80-200mm F/4.7-5.6 ⌀49 1994 
1.4 smc Pentax-A* 85mm F/1.4 ⌀67 1984 
4.0 smc Pentax-A 100mm F/4 Macro ⌀491:2 @ CFD 0.45mPro 1984 
2.8 smc Pentax-A 100mm F/2.8 ⌀49 1984 
2.8 smc Pentax-A 100mm F/2.8 Macro ⌀581:1 @ CFD 0.31mPro 1985 
2.8 smc Pentax-A 135mm F/2.8 ⌀52 1983 
1.8 smc Pentax-A* 135mm F/1.8 ⌀77 1984 
4.0 smc Pentax-A 200mm F/4 ⌀52 1983 
4.0 smc Pentax-A* 200mm F/4 ED Macro ⌀581:1 @ CFD 0.55mPro 1986 
2.8 smc Pentax-A* 200mm F/2.8 ED ⌀77 1982 
4.0 smc Pentax-A* 300mm F/4 ⌀77Pro 1983 
2.8 smc Pentax-A* 300mm F/2.8 ED [IF]Pro 1983 
5.6 smc Pentax-A 400mm F/5.6 ⌀77Pro 1984 
2.8 smc Pentax-A* 400mm F/2.8 ED [IF]Pro 1984 
5.6 smc Pentax-A* 600mm F/5.6 ED [IF] ⌀112Pro 1983 
8 smc Pentax-A* 1200mm F/8 ED [IF]Pro 1985 

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