Pentax 55mm f4 SMC 6x7 - Lens

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Model Details

Manual focus wide-angle lens made the 6x7 system introduced by Pentax. It has a 28mm equivalent focal length. Metal and plastic body available in black.

  • Asahi Opt. Co. 55mm f4 SMC Pentax 6x7 (8 elements, 7 groups)
  • Minimum focus distance: 0.4m
  • Aperture blades: 8
  • Size: 92 x 76 mm
  • Weight: 615g
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Pentax 6x7

The Pentax 6x7 was introduced in 1969 as an alternative to modular SLRs on the market. The 6x7 instead emulates the handling of a 35mm SLR, just scaled up to fit the 6x7cm negative.

All generations of Pentax 6x7 cameras feature electronically-controlled focal plane shutters that can reach speeds up to 1/1000s. The one major downside of the design is the slow flash sync compared to the leaf shutters in Mamiya and Hasselblad lenses.

Pentax offered interchangeable finders for the 67 system including TTL prisms, waist level finders, chimney finders, and non-metered prisms. The 67 II is also capable of TTL aperture priority autoexposure with the right prism.

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Pentax 55mm f4 SMC 6x7 - Lens Availability & Price History
Date Sold SKU Quality Control Price Image
Available T116916 $173.00 Pentax 55mm f4 SMC 6x7
06 Dec 2025 T117898 € 258.52 Pentax 55mm f4 SMC 6x7 - Lens Image
29 Jan 2023 T35734 € 259.00 Pentax 55mm f4 SMC 6x7 - Lens Image