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Leica 21mm f/3.4 Super-Angulon M – Technical Information
Manufacturer: Schneider-Kreuznach – Leica
Optics: 8 elements in 4 groups
Aperture range: f/3.4 to f/22
Filter: M 48 X 0.75 Thread – or Series 7 (held in place by the hood)
Maximum Outer Diameter: 52.5mm
Weight: about 250g (black version, without caps)
Lens code number: 11103
Lens hood code number: 12501 (12501M)
Front lens cap code number: 14102 (A52.5)
External viewfinder code number: 12002
Leather case for viewfinder code number: 14617
This lens is optimised for digital photography and has significantly reduced image field curvature in comparison to the previous model. Used Leica Elmarit-M 28mm F2.8 ASPH Lens (11677) W/ Box, Case, and Lens hood, and all caps.
Lens mount - Leica M-bayonet Number of lenses /groups - 7 /5 F stop range - f/1.4-f/16 Angle of view diagonal - 64 degrees Filter type - E41 - A46.5 Accessories - Hood: OLLUX 12522 Dimensions length x diameter - 38 x 53 mm / 1.50 x 2.07 in Weight - 245 g /8.64 oz M3 - 195 g / 6.88 oz