Angles of view (diagonal, horizontal, vertical) approx. 27°, 23°, 15° (for 35 mm: 24x36 mm)
Use with the Leica M8 models is not recommended since the optical properties do not suit smaller formats than 35 mm (24x36 mm).
Optical design Number of lenses/groups 4/3
Position of entrance pupil 49.6 mm
(in the direction of light incidence behind the bayonet fitting contact area)
Focusing Focusing range: 1 m to ∞
Scale: Meter divisions
Smallest object field / Biggest scale: approx. 215x322 mm/1:9.0 (for 35 mm: 24x36 mm)
Aperture No detent positions
2.2 - 2.6 or 9 - 25 (values in red: for use with the associated center spot filter)/2.3 - 6.3 (values in white: for use without the associated center spot filter)
Lens mount Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models
The 6 bit lens identification bar code (8) situated on the bayonet flange enables the digital Leica M models to identify the attached type of lens. This information is utilized by the camera to optimize exposure and image data.