
Summicron-M 28 f/2 ASPH.
Lens | Leica Summilux-M 21 f/1.4 ASPH. |
Order number | 11618 |
View angle (diagonal/horizontal/vertical) Full-frame (24 × 36 mm) |
76°/65°/46° |
Lens system | |
Number of lenses/assemblies | 9/6 |
Number of aspherical surfaces | 1 |
Position of the entrance pupil before the bayonet | 12.7 mm |
Focus range | 0.4 m to ∞ |
Focusing | |
Scale | Combined scale meter (m)/foot (ft) |
Smallest object field | Full-frame: 272 x 408 mm |
Largest scale | 1:11,3 |
Diaphragm | |
Setting/Function | Click-stop diaphragm with half-increment lock settings |
Smallest aperture | 16 |
Number of diaphragm blades | 10 |
Bayonet | Leica M bayonet with 6-bit encoding |
Filter thread | E46 |
Lens hood | extendable |
Dimensions | |
Length | Approx. 55 mm |
Diameter | Approx. 58 mm |
Weight | Approx. 275 g |
Technical Data Files

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