18MM BAYONET MOUNT LENSES
It is important to note that Leica lenses had their focal lengths specified in millimeters from 1925 to 1928, in centimeters from 1928 to 1970, and again in millimeters from 1971 onwards360.
18mm f/3.8 Super-Elmar-M ASPH
- introduced in 2009286
- introduced at a substantially lower price than the 16-18-21 f/4 Tri-Elmar-M ASPH286
|
Technical data table286 |
|
|
Angle of view (diagonal, horizontal, vertical) |
100°, 90°, 67° |
|
Optical design |
Number of lenses / groups: 8 / 7 |
|
Focal length: 18.3mm |
|
|
Position of entrance pupil: 19.8mm (related to the first lens surface in light direction) |
|
|
Focusing range: 0.7m to infinity |
|
|
Distance setting |
Scales: Combined meter / feet graduation |
|
Smallest object field: 827mm x 1241mm (35mm), 620 x 931mm (LEICA M8 models) |
|
|
Largest reproduction ratio: 1:34.6 |
|
|
Aperture |
Setting / Function: With click-stops, half values available, manual diaphragm |
|
Lowest value: 16 / Number of blades: 9 |
|
|
Bayonet |
Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models |
|
Filter mount/lens hood |
Male thread, non-rotating and with stop for filter holder or lens hood. |
|
Accessory filter holder for E77 filters available / Separate, screw-on type, included in delivery |
|
|
Dimension and weight |
Length: 58mm (2.28 in) |
|
Largest diameter: 61mm (2.4 in) |
|
|
Weight: approx. 310g (10.93 oz.) |
|