N°351258 · Family detail
LeicaWide·LEICA M mount·1957
Leica Summicron-M I 9cm F/2
Specifications01
MountLEICA M
Focal length9mm
Max aperturef/2
TypeWide · Prime
Release year1957
Weight660 g
Physical length66 mm
Min focus distance1 m
Optical elements6
Groups5
Min aperturef/16
Additional Info02
ModelSummicron I
FormatFull Frame
SeriesM
Squeezenone
Iris DriveManual
Focus DriveManual
Iris Blades15
Release Date1957-1962
Data Protocolnone
Country Of OriginGermany
Summary02
Leica M-mount 90mm (9cm) prime lens with a maximum aperture of f/2, intended for portrait and general telephoto use. It’s a fixed-aperture manual-focus rangefinder-style lens.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Leica M mount has a flange distance of 27.8 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Some wide-angle M lenses show colour shifts or soft corners on digital sensors.
- Sony EAdapter · 9.8 mm
- Canon RFAdapter · 7.8 mm
- Nikon ZAdapter · 11.8 mm
- Fujifilm XAdapter · 10.1 mm
- L-MountAdapter · 7.8 mm
- Micro Four ThirdsAdapter · 8.55 mm
- Canon EF-MAdapter · 9.8 mm
No plain adapter reaches infinity focus on: Fujifilm G (GFX), Canon EF, Nikon F.
Sources03
cinelenswiki.comVisit ↗

Other Mounts03
No alternate mounts are indexed for this family yet.