SLR lens mount

Olympus OM mount

Everything about the Olympus OM: flange focal distance, native lenses, cameras and which adapters keep infinity focus.

46.00 mm
Flange focal distance
41.0 mm
Throat diameter
1972
Introduced
SLR
System type
4
Lenses in our database

Mount facts#

Mount
Olympus OM
Maker
Olympus
Type
SLR
Flange focal distance
46.00 mm
Formats
Full frame
Electronic contacts / AF
No (mechanical / manual)
Production
1972–2002

About the Olympus OM#

Compact manual-focus Zuiko system of the OM-1 and successors.

Olympus OM lenses#

4 native lenses, widest to longest.

LensFocalApertureFormatType
Olympus OM-System Zuiko Auto-S 50 mm f/1.8 (Vers. S/N 5хххххх)50 mmf/1.8Full frameStandard prime
Olympus Zuiko Auto-S 50mm f/1.850 mmf/1.8Full frameStandard prime
Sigma 180mm f/5.6 APO Macro180 mmf/5.6Full frameMacro
Tokina 500mm f/8 RMC Mirror Lens500 mmf/8Full frameSuper-telephoto prime

Use Olympus OM lenses on other cameras#

AdapterPossible?Flange gap
Olympus OM → Sony E-mountYes · manual+28.00 mm
Olympus OM → Canon RFYes · manual+26.00 mm
Olympus OM → Nikon ZYes · manual+30.00 mm
Olympus OM → Fujifilm X-mountYes · manual+28.30 mm
Olympus OM → Micro Four ThirdsYes · manual+26.75 mm
Olympus OM → L-MountYes · manual+26.00 mm
Olympus OM → Canon EF-MYes · manual+28.00 mm
Olympus OM → Fujifilm G-mountYes · manual+19.30 mm
Olympus OM → Hasselblad XCDYes · manual+27.86 mm
Olympus OM → Nikon 1 (CX)Yes · manual+29.00 mm
Olympus OM → Pentax QYes · manual+36.80 mm
Olympus OM → Samsung NXYes · manual+20.50 mm
Olympus OM → Canon EFYes · manual+2.00 mm

Adapting basics#

A lens can be adapted with simple tube spacers when its flange distance is longer than the camera's. With 46.00 mm, Olympus OM lenses can in principle go on bodies with shorter flanges such as Exakta, Sony / Minolta A-mount, Rollei QBM, Samsung Kenox mount, Praktica B, Canon EF. Bodies with this mount can take lenses from longer-flange systems such as KMZ Zenit DKL-mount, Contax N, Tamron Adaptall, Arri PL, Leica S, T-mount (T2), Mini T-mount, YS mount.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources