Pentax K series lenses

First generation of smc Pentax bayonet mount lenses introduced together with Pentax K2, KX and KM 35mm film SLR cameras. They go from an ultra-wide 15mm to a super-telephoto 1000mm, and most of them were based on the SMC Takumar lenses. All of the lens elements were Super-Multi-Coated, even those elements that were cemented together. This increased the light transmission and color fidelity of the lenses while reducing flare and glare even better than the SMC Takumar lenses.

A number of other changes and improvements were also made. All lenses had textured rubber focusing rings for a better grip. The minimum aperture of all the lenses had also been changed. The Pentax lenses no longer had a stop-down lever and when the lens was removed from the camera body it closed down to the set aperture.

With an inner diameter of 45mm, the Pentax K mount can easily handle fast lenses like the smc Pentax 50mm F/1.2. It is extremely quick and easy to change lenses. The auto diaphragm and full aperture metering are coupled as you twist the lens.

35mm full frame, Manual focus, For SLR cameras (39)
smc Pentax 15mm F/3.5Pro 1975 
smc Pentax 17mm F/4 Fish-eye 1975 
smc Pentax 18mm F/3.5Pro 1975 
smc Pentax 20mm F/4 ⌀58Pro 1975 
smc Pentax 24mm F/3.5 ⌀58 1975 
smc Pentax 24mm F/2.8 ⌀52 1977 
smc Pentax Shift 28mm F/3.5Pro 1975 
smc Pentax 28mm F/3.5 ⌀52 1976 
smc Pentax 28mm F/2 ⌀52 1976 
smc Pentax 28-50mm F/3.5-4.5 ⌀52 1975 
smc Pentax 30mm F/2.8 ⌀52 1975 
smc Pentax 35mm F/3.5 ⌀52 1975 
smc Pentax 35mm F/2 ⌀52 1975 
smc Pentax 45-125mm F/4Push/pull 1975 
smc Pentax 50mm F/4 Macro ⌀521:2 @ CFD 0.234m 1975 
smc Pentax 50mm F/1.4 ⌀52 1975 
smc Pentax 50mm F/1.2 ⌀521 special limited edition 1975 
smc Pentax 50mm F/1.2 Gold ⌀52 1981 
smc Pentax 55mm F/2 ⌀52 1976 
smc Pentax 55mm F/1.8 ⌀52 1975 
smc Pentax 80-200mm F/4.5 ⌀52Push/pull 1977 
smc Pentax 85mm F/2.2 Soft ⌀49 1985 
smc Pentax 85mm F/1.8 ⌀52 1975 
smc Pentax 85-210mm F/4.5 ⌀58Push/pull 1975 
smc Pentax 85-210mm F/3.5 ⌀67Push/pull 1976 
smc Pentax 100mm F/4 Macro ⌀521:2 @ CFD 0.45mPro 1975 
smc Pentax Bellows 100mm F/4 ⌀52For bellowsPro 1975 
smc Pentax 105mm F/2.8 ⌀52 1975 
smc Pentax 120mm F/2.8 ⌀52 1975 
smc Pentax 135mm F/3.5 ⌀52 1975 
smc Pentax 135mm F/2.5 ⌀58 1975 
smc Pentax 135-600mm F/6.7Push/pull 1975 
smc Pentax 150mm F/4 ⌀52 1975 
smc Pentax 200mm F/4 ⌀58 1975 
smc Pentax 200mm F/2.5 ⌀77 1977 
smc Pentax 300mm F/4 ⌀77Pro 1975 
smc Pentax 400mm F/5.6 ⌀77Pro 1975 
smc Pentax 500mm F/4.5Pro 1975 
smc Pentax 1000mm F/8Pro 1975 

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