Mamiya-Sekor C 80mm F/4 Macro

Macro lens • Film era • Discontinued

  • Announced:
  • · 1977
  • Production status:
  • ● Discontinued
  • Country of design:
  • · Japan
  • Original name:
  • · MAMIYA-SEKOR MACRO C 1:4 f=80mm
  • Class:
  • · Slow 6x4.5 medium-format macro lens
  • · Professional model (Top class)
  • System:
  • · Mamiya M645 (1975)

Abbreviations

C Multi-layer anti-reflection coating is applied to the surfaces of lens elements. This anti-reflection coating increases light transmission, eliminates flare and ghosting, and maintains color consistence among all lens models.
MACRO Macro lens. Designed specially for shooting close-ups of small subjects but can be also used in other genres of photography, not necessarily requiring focusing at close distances. Learn more

Model history (2)

■Mamiya-Sekor C 80mm F/4 Macro • 1:2A6 - 40.38m⌀67 1977 ●
■Mamiya-Sekor C 80mm F/4 Macro N • 1:2A6 - 40.36m⌀67 ●

Specification

Optical design:
Medium format 6x4.5
80mm
F/4
6 elements in 4 groups (Double Gauss derivative)
Floating element system
Mamiya M645 [63mm]
47.1°
Diaphragm mechanism:
Diaphragm type:
Automatic
Aperture control:
Aperture ring (Manual settings only)
5 (five)
Focusing:
0.375m
1:2
Focusing modes:
Manual focus only
Manual focus control:
Focusing ring
Physical characteristics:
585g
⌀79×75mm
Accessories:
Screw-type 67mm
Not required
Not compatible

Sources of data

  • Manufacturer's technical data.
  • Mamiya-Sekor C interchangeable lenses for Mamiya M645 instructions.
  • Mamiya-Sekor C interchangeable lenses for Mamiya M645 Super/ M645 instructions.
  • Mamiya-Sekor C interchangeable lenses for Mamiya M645 instructions (II).
  • Mamiya M645 booklet (1982).
  • Mamiya M645 booklet (1981).
  • Mamiya M645 instructions (II).
  • Mamiya M645 instructions.
  • Mamiya M645 1000S booklet.
  • Mamiya M645 1000S instructions.
  • Mamiya M645J instructions.
  • Mamiya M645J instructions (II).

Manufacturer description

Its high resolving power is especially appreciated in close-up and copy work. A built-in floating system automatically compensates for increased aberration most other macros suffer at close focusing distances, and you obtain edge-to-edge sharpness every time. The optional Auto Macro Spacer extends range from half-life-size to life-size.

Other macro lenses in the Mamiya M645 system

■Mamiya M645 mount (4)
Mamiya-Sekor C 80mm F/4 Macro N • 1:2A6 - 40.36m⌀67 ●
Mamiya A 120mm F/4 Macro M • 1:1A9 - 80.40m⌀67 ●
Mamiya 645 MF 120mm F/4 Macro • 1:1A9 - 80.40m⌀67 2000 ●
Mamiya Sekor D MF 120mm F/4 Macro • 1:1A9 - 80.40m⌀67 2008 ●

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