Pentax 67 mount lenses

Pentax 67 mount was developed by Pentax in the late 1960s for their 1969 release of a 6×7 medium format camera, the 6X7. It has two bayonet mounts, an inner and an outer mount. The inner mount has three tabs, the outer mount has four symmetrical arranged tabs allowing the use of heavier telephoto lenses and enabling them to be mounted in any of the four positions. Consequently, outer mount lenses do not have automatic aperture linkage, only stop-down metering can be used with those lenses. It has an 84.95mm focal flange distance, and a throat diameter of 72mm.

The first generation of lenses had a standard multi-coating and was named “Super-Takumar”. Following the same improvements as in 35mm format lenses, after introducing seven-layer coating, they were labelled as “Super-Multi-Coated Takumar”. Again, following the change in 35mm format, from M42 screw-mount to K-mount, and dropping the Takumar branding, lenses were labelled as “smc Pentax”.

Lenses mostly have automatic aperture linkages, except 75mm shift, 120mm soft-focus, 600mm and 800mm lenses due to their rack-and-pinion focusing system, all outer-bayonet lenses, and finally, the 1000mm catadioptric lens has no adjustable aperture at all.

Compared to the usual 35mm film format, the crop factor of Pentax 67 mount lenses is approximately 0.5×, due to aspect ratio differences.

Jump to: Takumar 6X7 lenses, Pentax 6X7 lenses, lens terminology.

Takumar 6X7 lenses

Here are included all older, Takumar 6X7, lenses, regardless of the actual designation – Takumar/6X7, Super Takumar/6X7 and Super-Multi-Coated Takumar/6X7 lenses are all included. The exact wording on the lens is omitted for clarity, the earliest version is used.

• Fish-Eye Takumar/6X7 35mm F4.5 ~18mm-equivalent
• Super-Takumar/6X7 55mm F3.5 28mm-equivalent
• Super-Takumar/6X7 75mm F4.5 38mmmm-equivalent
• Super-Multi-Coated Takumar/6X7 90mm F2.8 LS 45mm-equivalent, leaf-shutter lens
• Super-Takumar/6X7 105mm F2.4 ~55mm-equivalent
• Super-Multi-Coated Macro-Takumar/6X7 135mm F4 ~70mm-equivalent, macro lens
• Super-Takumar/6X7 150mm F2.8 75mm-equivalent
• Super-Takumar/6X7 200mm F4 100mm-equivalent
• Super-Takumar/6X7 300mm F4 150mm-equivalent
• Takumar/6X7 400mm F4 200mm-equivalent, uses outer bayonet
• Super-Multi-Coated Takumar/6X7 500mm F5.6 250mm-equivalent
• Takumar/6X7 600mm F4 300mm-equivalent, uses outer bayonet
• Takumar/6X7 800mm F4 400mm-equivalent, uses outer bayonet
• Reflex-Takumar/6X7 1000mm F8 500mm-equivalent, catadioptric lens

Pentax 6X7 lenses

All more recent lenses, labelled simply as Pentax 6×7/67, are in this list – both the early 1980s variant, smc Pentax-6×7 and the latest, late 1980s variant, labelled as smc Pentax 67. The latest, a still current variant is used for clarity.

• smc Pentax 67 Fish-Eye 35mm F4.5 ~18mm-equivalent
• smc Pentax 67 45mm F4 ~24mm-equivalent
• smc Pentax 67 55mm F4 28mm-equivalent
• smc Pentax 67 Zoom 55–‍100mm F4.5 28–‍50mm-equivalent
• smc Pentax 67 75mm F2.8 AL 38mm-equivalent
• smc Pentax 67 75mm F4.5 38mm-equivalent
• smc Pentax 67 75mm F4.5 Shift 38mm-equivalent, shift lens
• smc Pentax 67 90mm F2.8 45mm-equivalent
• smc Pentax 67 Zoom 90–‍180mm F5.6 ~45–‍90mm-equivalent
• smc Pentax 67 Macro 100mm F4 50mm-equivalent, macro lens
• smc Pentax 67 105mm F2.4 ~55mm-equivalent
• smc Pentax 67 Soft 120mm F3.5 60mm-equivalent, soft-focus lens
• smc Pentax 67 Macro 135mm F4 ~70mm-equivalent
• smc Pentax 67 165mm F2.8 ~85mm-equivalent
• smc Pentax 67 LS 165mm F4 ~85mm-equivalent, leaf-shutter lens
• smc Pentax 67 200mm F4 100mm-equivalent
• smc Pentax 67 300mm F4 150mm-equivalent
• smc Pentax-M★ 67 300mm F4 ED [IF] 150mm-equivalent
• smc Pentax-M★ 400mm F4 ED 200mm-equivalent
• smc Pentax 67 500mm F5.6 250mm-equivalent
• smc Pentax-6X7 800mm F4 400mm-equivalent, uses outer bayonet, existence disputed
• smc Pentax-M★ 67 800mm F6.7 ED [IF] 400mm-equivalent

Pentax 67 lens terminology

• ★ – a lens that is built to the finest optical and mechanical standard
• AL – a lens that uses at least one aspherical lens element
• ED – a lens that uses at least one extra-low dispersion lens element
• [IF] – a lens that uses an internal focusing mechanism, it does not change the size while focusing
• LS – a lens that has a built-in leaf-shutter, enabling 1/500 flash synchronisation

References

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Last update: 24. 2. 2023.