Mamiya 180mm f4.5 Sekor - Lens

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Model Details

Manual focus telephoto lens made for Mamiya RB67 medium format SLR cameras introduced by Mamiya in 1970. This is the first version of the 180mm lens for the RB67. Metal body available in black.

  • Mamiya-Sekor 180mm f4.5 (5 elements in 3 groups)
  • Minimum focus distance: 1.7m
  • Aperture blade: 8
  • Shutter: Mechanical Seiko #1, speeds 1-1/400s + T
  • Size: 111 x 94 mm
  • Weight: 887g

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Brand
Mamiya
System
Mamiya RB67
Usage
Film
Filter Size
77mm
Field of View
Telephoto
Focus Type
MF Only

Mamiya RB67

The Mamiya RB67 is an iconic Japanese medium format 6x7 SLR. The name RB67 gets its name one of its defining features; a Rotating Back. This ingenious design allows for portrait or landscape shooting without rotating the camera. The viewfinder is a 7x7 square and has lines to reflect both orientations. The RB is a fully mechanical system that does not require batteries to operate, which is one of its biggest advantages over the newer RZ67.  Mamiya produced many different lenses for the RB67, all of them excellent. Lenses are equipped with leaf shutters with speeds ranging from 1 second to 1/400s. There are also interchangeable finders, grips, film backs, and other accessories that make the RB67 a truly modular camera.

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Mamiya 180mm f4.5 Sekor - Lens Availability & Price History
Date Sold SKU Quality Control Price Image
Available T36043 $208.00 Mamiya 180mm f4.5 Sekor
Available T78508 $289.00 Mamiya 180mm f4.5 Sekor
Available T80769 $289.00 Mamiya 180mm f4.5 Sekor
21 Mar 2025 T78892 € 249.00 Mamiya 180mm f4.5 Sekor - Lens Image
05 Aug 2024 T75144 € 249.00 Mamiya 180mm f4.5 Sekor - Lens Image