- Description
- Technical Specs
To meet the requirements of digital photography, the Leica Super-Elmar-M 21mm f/3.4 ASPH is a benchmark in all optical performance characteristics. The stray light optimization was implemented on a very high level, allowing for backlit shots with crystal clear contrast. The design of the metal lens hood matches the appearance of the current wide-angle lenses of the Leica M system. This lens hood is also compatible with the Leica Super Elmar-M 24 mm f/3.8 ASPH and the Leica Summilux-M 35mm/1.4. With the Leica M8 and M8.2, the Leica Super-Elmar-M 21mm/3.4 ASPH has an equivalent focal length of 28 mm making it a practical standard wide-angle lens for use with the Leica M8 and M8.2.
| Lens Connection | screw-on type lens hood (included in delivery), filter holder for E67 size filters optionally available |
| Field Angle | for 35 mm and M9 (24 x 36 mm) at 16 mm: 107°, 97°, 74° at 18 mm: 100°, 90°, 67° at 21 mm: 92°, 81°, 60° for digital M8/M8.2 (18 x 27 mm) at 16 mm: 90°, 80°, 59° at 18 mm: 84°, 74°, 53° at 21 mm: 75°, 65°, 46° corresponds approx. to a focal length o |
| Optical Design, Number of Lenses/Groups | 10 / 7 |
| Working Range | 0.5 m to Infinity, range from 0.5 to 0.7 m separated by index |
| Distance Setting, Smallest Object Field | for full frame 35mm 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 for M8 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, a |
| Weight | approx. 335 g |
| Aperture Setting/ Function | Preset, with click-stops, half values available |
| Lowest Value | 22 |
| Bayonet/ Sensor Format | Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models |
| Filter Mount | Male thread, non-rotating and with stop for filter holder or lens hood |
| Largest Diameter | approx. 54 mm (53 x 58 mm with lens hood) |