Angle of view (diagonal, horizontal, vertical) for 35mm
- at 16 mm: 107°, 97°, 74°
- at 18 mm: 100°, 90°, 67°
- at 21 mm: 92°, 81°, 60°
Angle of view (diagonal, horizontal, vertical) for digital
- at 16 mm: 90°, 80°, 59°
- at 18 mm: 84°, 74°, 53°
- at 21 mm: 75°, 65°, 46°, corresponds approx. to a focal length of 21/24/28 mm with 35 mm-format
Optical design
Distance setting
- Focusing range: 0.5 m to Infinity, range from 0.5 to 0.7 m separated by index
- Scales: Combined meter/feet graduation with uniform grey figures below 0.7 m
Smallest object field: for 35 mm:
- at 16 mm: 915 x 1373 mm, approx. 1:38
- at 18 mm: 833 x 1250 mm, approx. 1:35
- at 21 mm: 725 x 1087 mm, approx. 1:30
Smallest object field: for digital
- at 16 mm: 688 x 1032 mm, approx. 1:38
- at 18 mm: 626 x 939 mm, approx. 1:35
- at 21 mm: 545 x 817 mm, approx. 1:30
Highest reproduction ratio
- at 16 mm: 1:38
- at 18 mm: 1:35
- at 21 mm: 1:30
Aperture
- Setting / Function: Preset, with click-stops, half values available
- Lowest value: 22
Bayonet
- Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models
Filter (type)
- Male thread, non-rotating and with stop for filter holder or lens hood
Lens hood
- screw-on type lens hood (included in delivery), filter holder for E67 size filters optionally available
Dimensions and weight
- Length: approx. 62/72 mm (with/without lens hood)
- Largest diameter: approx. 54 mm (53 x 58 mm with lens hood)
- Weight: approx. 335 g
