Tri-Elmar-M 16-18-21 f/4 ASPH.
| Lens | Leica Tri-Elmar-M 16-18-21 mm f/4 ASPH. |
| Order number | 11642 |
| View angle (diagonal/horizontal/vertical) Full-frame (24 × 36 mm) |
16mm: 107°/97°/74° 18mm: 100°/90°/67° 21mm: 92°/81°/60° |
| Lens system | |
| Number of lenses/assemblies | 10/7 |
| Number of aspherical surfaces | 2 |
| Focus range | 0.5 m to ∞ |
| Focusing | |
| Scale | Combined scale meter (m)/foot (ft) |
| Smallest object field | 16mm: 915 x 1373 mm 18 mm: 833 x 1250 mm 21 mm: 725 x 1087 mm |
| Largest scale | 16 mm: 1:38 18 mm: 1:35 21 mm: 1:30 |
| Diaphragm | |
| Setting/Function | Click-stop diaphragm with half-increment lock settings |
| Smallest aperture | 22 |
| Bayonet | Leica M bayonet with 6-bit encoding |
| Filter thread | E67 |
| Lens hood | screw-on |
| Dimensions | |
| Length | Approx. 66 mm |
| Diameter | Approx. 54 mm |
| Weight | Approx. 335 g |
Technical Data Files
Tri-Elmar-M 16-18-21 mm f/4 ASPH. - Technical data
English
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