Asahi Pentax M42 system

Discontinued

Asahi Pentax

35mm MF film SLR camera

Also known as: Tower 26
Announced: May 1957
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B, T
Exposure metering: No

Asahi Pentax S

35mm MF film SLR camera

Also known as: Tower 26
Announced: Apr 1958
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/500 + B, T
Exposure metering: No

Asahi Pentax K

35mm MF film SLR camera

Also known as: Tower 29
Announced: May 1958
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B, T
Exposure metering: No

Asahi Pentax S2

35mm MF film SLR camera

Also known as: Honeywell Pentax H2
Honeywell Heiland Pentax H-2
Announced: May 1959
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B, T
Exposure metering: No

Asahi Pentax S1

35mm MF film SLR camera

Also known as: Honeywell Pentax H1
Honeywell Heiland Pentax H-1
Announced: Apr 1961
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/500 + B, T
Exposure metering: No

Asahi Pentax S3

35mm MF film SLR camera

Also known as: Honeywell Pentax H3
Honeywell Heiland Pentax H-3
Announced: Apr 1961
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B, T
Exposure metering: No

Asahi Pentax S1a

35mm MF film SLR camera

Also known as: Honeywell Pentax H1a
Honeywell Heiland Pentax H-1a
Announced: Jul 1962
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/500 + B, T
Exposure metering: No

Asahi Pentax SV

35mm MF film SLR camera

Also known as: Honeywell Pentax H3v
Announced: Jul 1962
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B, T
Exposure metering: No

Asahi Pentax Spotmatic

35mm MF film SLR camera

Also known as: Honeywell Pentax Spotmatic
Announced: Jul 1964
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)

Asahi Pentax Spotmatic SL

35mm MF film SLR camera

Also known as: Honeywell Pentax Spotmatic SL
Announced: Sep 1968
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B
Exposure metering: No
Dimensions: 143x92x88mm
Weight: 598g

Honeywell Pentax Spotmatic IIa

35mm MF film SLR camera

Announced: 1971
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 143x93x88mm
Weight: 622g

Asahi Pentax Spotmatic II

35mm MF film SLR camera

Announced: Apr 1971
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 143x93x88mm
Weight: 622g

Asahi Pentax Spotmatic SP 500

35mm MF film SLR camera

Also known as: Honeywell Pentax Spotmatic SP 500
Announced: Apr 1971
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/500 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 143x92x88mm
Weight: 610g

Asahi Pentax ES

35mm MF film SLR camera

Also known as: Asahi Pentax Electro Spotmatic
Honeywell Pentax ES
Announced: Jun 1971
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 8 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 143x98x91mm
Weight: 940g

Asahi Pentax ES II

35mm MF film SLR camera

Also known as: Honeywell Pentax ES II
Announced: Jun 1973
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 8 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 143x98x90mm (*)
Weight: 879g (*)

* - with SMC Takumar 55mm F/1.8

Asahi Pentax Spotmatic F

35mm MF film SLR camera

Also known as: Honeywell Pentax Spotmatic F
Announced: Jul 1973
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 143x93x87mm (*)
Weight: 842g (*)

* - with SMC Takumar 55mm F/1.8

Asahi Pentax Spotmatic SP 1000

35mm MF film SLR camera

Also known as: Honeywell Pentax Spotmatic SP 1000
Announced: Oct 1974
Mount: M42
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 143x92x88mm (*)
Weight: 820g (*)

* - with SMC Takumar 55mm F/2

One of the most complete systems of 35mm photography.

In 1957, Asahi released the Pentax, one of the first SLR cameras with pentaprism viewfinder that surpassed its existing counterparts in brightness, as well as the first Japanese SLR camera with M42 screw mount. With its compact size, light weight, attractive design and ease of operation, the camera became a great success.

The short production model S (1958) received standardized shutter speeds, while the model K (1958) received semi-automatic aperture support and a shutter speed range extended to 1/1000 sec. Subsequent S series cameras were in fact the K model with some enhancements.

The Spotmatic was released in 1964 and became the world's first 35mm SLR camera with TTL (stop down) exposure metering. Its compact size, wide range of lenses and accurate exposure meter made this camera very popular.

SP 500 (1971) and SP 1000 (1974) are budget versions of Spotmatic, lacking a number of features. Spotmatic SL (1968) is a stripped-down version of Spotmatic without the exposure meter. Spotmatic II (1971) received an improved metering system. Spotmatic IIa (1971) was made only for the American market.

In 1971, the Electro-Spotmatic was released, which became the world's first SLR camera with a fully automatic electronically controlled shutter. It was only sold in Japan and was a great success, resulting in its introduction to the global market under the ES designation and more reliable circuitry. ES II (1973) received an extended shutter speed range up to 8 seconds and a self-timer.

Lenses for Asahi 35mm SLR cameras were produced under the Takumar brand. Takumars and Tele-Takumars have preset or manual diaphragms. Auto-Takumars are equipped with semi-automatic, and Super-Takumar, introduced simultaneously with SV (1962) and S1a (1962) cameras, have fully automatic diaphragm. In addition, Super-Takumars have an improved anti-reflective coating and a switch for automatic or manual diaphragm control. Super-Multi-Coated Takumars, introduced simultaneously with the Spotmatic II (1971), received multi-layer anti-reflective coating and full aperture exposure metering support with ES, ES II and Spotmatic F cameras (with other Takumar lenses, only stop down exposure was available). Finally, SMC Takumars, which came alongside the Spotmatic F (1973), is a cosmetic update to Super-Multi-Coated Takumars. They differ only in the rubberized focusing ring.

Ranked among the very finest lenses of the time, Takumars are noted for their superb resolving power which results in edge-to-edge sharpness even at full aperture. In addition to their superior optics, the lenses incorporate outstanding mechanics. Each lens barrel is precision machined for accurate positioning of elements and smooth operation.

Camera lineup

M42 mount lens lineup

Lenses found: 96
Fisheye lenses
Asahi Fish-eye-Takumar 17mm F/4 [43841] 1967 
Asahi Super-Multi-Coated Fish-eye-Takumar 17mm F/4 [43842]modified M42 1973 
Asahi Fish-eye-Takumar 18mm F/11 [356, 43560]Pancake lens 1963 
Ultra-wide angle prime lenses
Asahi SMC Takumar 15mm F/3.5 [44002]modified M42Pro 1975 
Asahi Super-Takumar 20mm F/4.5 [43951]Pro 1968 
Asahi Super-Multi-Coated Takumar 20mm F/4.5 [43952]modified M42Pro 1971 
Wide-angle prime lenses
Asahi Super-Takumar 24mm F/3.5 [43961] 1967 
Asahi Super-Multi-Coated Takumar 24mm F/3.5 [43962]modified M42 1972 
Asahi Super-Takumar 28mm F/3.5 [348, 43480, 43481] 1962 
Asahi Super-Takumar 28mm F/3.5 [43871] 1966 
Asahi Super-Multi-Coated Takumar 28mm F/3.5 [43872]modified M42 1971 
Asahi Takumar 35mm F/4 [329] 1957 
Asahi Auto-Takumar 35mm F/3.5 [336, 43360] 1959 
Asahi Super-Takumar 35mm F/3.5 [357, 43571] 1962 
Asahi Super-Multi-Coated Takumar 35mm F/3.5 [43572]modified M42 1971 
Asahi Auto-Takumar 35mm F/2.3 [335, 43350] 1959 
Asahi Super-Takumar 35mm F/2 [368, 43680] 1963 
Asahi Super-Takumar 35mm F/2 [43931] 1967 
Asahi Super-Multi-Coated Takumar 35mm F/2 [43932]modified M42 1971 
Standard prime lenses
Asahi Super-Takumar 50mm F/1.4 [358, 35800] 1964 
Asahi Super-Takumar 50mm F/1.4 [378, 37800, 37801] 1965 
Asahi Super-Takumar 50mm F/1.4 [37802] 1969 
Asahi Super-Multi-Coated Takumar 50mm F/1.4 [37902]modified M42 1971 
Asahi SMC Takumar 50mm F/1.4 [37908]modified M42 1972 
Asahi Takumar 55mm F/2.2 1957 
Asahi Auto-Takumar 55mm F/2.2 1961 
Asahi Auto-Takumar 55mm F/2 [341, 34100] 1958 
Asahi Super-Takumar 55mm F/2 [345-1, 345-6, 345-3] 1962 
Asahi Super-Takumar 55mm F/2 [37102, 37103, 37107] 1965 
Asahi SMC Takumar 55mm F/2 [37109]modified M42 1973 
Asahi Auto-Takumar 55mm F/1.9 1958 
Asahi Auto-Takumar 55mm F/1.8 [332] 1958 
Asahi Takumar 55mm F/1.8 1958 
Asahi Auto-Takumar 55mm F/1.8 [345] 1960 
Asahi Super-Takumar 55mm F/1.8 [345-2, 345-5, 33450, 34520] 1962 
Asahi Super-Takumar 55mm F/1.8 [371, 37100, 37101, 37104, 37106] 1965 
Asahi Super-Multi-Coated Takumar 55mm F/1.8 [37101, 37104, 37106]modified M42 1971 
Asahi SMC Takumar 55mm F/1.8 [37108]modified M42 1972 
Asahi Takumar 58mm F/2.4 1957 
Asahi Takumar 58mm F/2 1957 
Short telephoto prime lenses
Asahi Takumar 83mm F/1.9 [322] 1957 
Asahi Ultra-Achromatic-Takumar 85mm F/4.5 [43851]Pro 1968 
Asahi Quartz-Takumar 85mm F/3.5 [361, 43610]For bellowsPro 1963 
Asahi Super-Takumar 85mm F/1.9 [364, 43640] 1962 
Asahi Super-Multi-Coated Takumar 85mm F/1.9 [43461]modified M42 1971 
Asahi Auto-Takumar 85mm F/1.8 [342, 43420] 1960 
Asahi Super-Multi-Coated Takumar 85mm F/1.8 [43832]modified M42 1972 
Asahi Takumar 100mm F/3.5 1957 
Asahi Takumar 100mm F/2 1964 
Asahi Takumar 105mm F/2.8 [331, 43310] 1958 
Asahi Auto-Takumar 105mm F/2.8 [340, 43400] 1959 
Asahi Takumar 105mm F/2.8 [349, 43490] 1961 
Asahi Super-Takumar 105mm F/2.8 [350, 43500, 43501] 1963 
Asahi Super-Multi-Coated Takumar 105mm F/2.8 [43502]modified M42 1971 
Asahi Super-Multi-Coated Takumar 120mm F/2.8 [43982]modified M42 1972 
Medium telephoto prime lenses
Asahi Takumar 135mm F/3.5 [324, 43240] 1957 
Asahi Auto-Takumar 135mm F/3.5 [343] 1959 
Asahi Takumar 135mm F/3.5 [353, 43530] 1961 
Asahi Super-Takumar 135mm F/3.5 [354, 43540] 1963 
Asahi Super-Takumar 135mm F/3.5 [43541] 1965 
Asahi Super-Multi-Coated Takumar 135mm F/3.5 [43542]modified M42 1971 
Asahi Super-Takumar 135mm F/2.5 [43801] 1965 
Asahi Super-Multi-Coated Takumar 135mm F/2.5 [43802]modified M42 1971 
Asahi Super-Multi-Coated Takumar 135mm F/2.5 [43812]modified M42 1972 
Asahi Super-Takumar 150mm F/4 [374, 43740] 1965 
Asahi Super-Takumar 150mm F/4 [43741] 1967 
Asahi Super-Multi-Coated Takumar 150mm F/4 [43742]modified M42 1971 
Asahi (Tele-)Takumar 200mm F/5.6 [347, 351, 43510] 1958 
Asahi Super-Takumar 200mm F/4 [376, 37600, 43760, 43761] 1965 
Asahi Super-Multi-Coated Takumar 200mm F/4 [43762]modified M42 1971 
Asahi Takumar 200mm F/3.5 [338, 43380] 1958 
Super telephoto prime lenses
Asahi Tele-Takumar 300mm F/6.3 [363, 43630]Pro 1965 
Asahi Ultra-Achromatic-Takumar 300mm F/5.6 [43861]Pro 1968 
Asahi Takumar 300mm F/4Pro 1958 
Asahi Takumar 300mm F/4 [346, 43460]Pro 1962 
Asahi Super-Takumar 300mm F/4 [43891, 43894]Pro 1965 
Asahi Super-Multi-Coated Takumar 300mm F/4 [43892]modified M42Pro 1971 
Asahi Tele-Takumar 400mm F/5.6 [370, 43700]Pro 1965 
Asahi Super-Multi-Coated Takumar 400mm F/5.6 [43701]modified M42Pro 1971 
Asahi Takumar 500mm F/5 [326, 43260]Pro 1957 
Asahi Takumar 500mm F/4.5 [366, 43660]Pro 1966 
Asahi Super-Multi-Coated Takumar 500mm F/4.5 [43661]modified M42Pro 1971 
Asahi Takumar 1000mm F/8 [334, 43340]Pro 1958 
Asahi Tele-Takumar 1000mm F/8 [365, 43650]Pro 1965 
Asahi Super-Multi-Coated Takumar 1000mm F/8 [43691]modified M42Pro 1971 
Macro lenses
Asahi Macro-Takumar 50mm F/4 [367, 43670]1:1 1964 
Asahi Super-Macro-Takumar 50mm F/4 [391, 43910, 43911]1:2 1966 
Asahi Super-Multi-Coated Macro-Takumar 50mm F/4 [43912]modified M421:2 1971 
Asahi Bellows-Takumar 100mm F/4 [360, 43600]For bellowsPro 1964 
Asahi Super-Multi-Coated Bellows-Takumar 100mm F/4 [43601]modified M42For bellowsPro 1971 
Asahi Super-Multi-Coated Macro-Takumar 100mm F/4 [43922]modified M421:2Pro 1972 
Telephoto zoom lenses
Asahi SMC Takumar-Zoom 45-125mm F/4 [44012]modified M42 1975 
Asahi Super Takumar-Zoom 70-150mm F/4.5 [362, 43620] 1964 
Asahi Takumar-Zoom 70-150mm F/4.5 1964 
Asahi Super-Multi-Coated Takumar-Zoom 85-210mm F/4.5 [43772]modified M42 1971 
Asahi Super-Multi-Coated Takumar-Zoom 135-600mm F/6.7 [43990]modified M42 1972 

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