Cosina Auto Cosinon 55mm F/1.2 MC

Specifications01

MountM42

Focal length55mm

Max aperturef/1.2

TypePortrait · Prime

Filter size55 mm

Min focus distance0.5 m

Aperture blades8

Optical elements7

Groups5

AutofocusNo

StabilizationNo

Aperture controlAperture ring (Manual settings only)

EraFilm era

Production statusDiscontinued

Additional Info02

Lens TypeStandard prime lens

Summary02

Cosina Auto Cosinon 55mm prime lens for M42 mount, with a maximum aperture of f/1.2. Suitable for low-light and portrait-style photography where shallow depth of field is desired.

AI-assisted summary — verify against linked sources

Specifications from thelensdb

Where can this lens be adapted?

The M42 screw mount has a flange distance of 45.46 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work

Many M42 lenses close the aperture only when a pin at the rear is pressed. Use an adapter that presses the pin, or set the A/M switch to M.

Sony EAdapter · 27.46 mm
Canon RFAdapter · 25.46 mm
Nikon ZAdapter · 29.46 mm
Fujifilm XAdapter · 27.76 mm
L-MountAdapter · 25.46 mm
Micro Four ThirdsAdapter · 26.21 mm
Fujifilm G (GFX)Adapter · 18.76 mm
Covers full-frame: it can vignette on a medium format sensor.
Canon EF-MAdapter · 27.46 mm
Canon EFAdapter · 1.46 mm
A rear element that sticks out can hit the camera mirror.

No plain adapter reaches infinity focus on: Nikon F.

Sources03

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Other Mounts03

No alternate mounts are indexed for this family yet.