21mm f/1.4 ASPH Summilux-M
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- Leica Order No. - 11 647 / LLC -
- Era - 2008-Current / Serial Nos. -
- Lens mount - Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models
- Number of lenses/groups - 10/8
- Aperture - 1.4 > 16
- Focusing range - 0.7 m / 2.3 ft < ∞
- Smallest object field - 685 mm x 1027 mm
- Maximum magnification - 1:29
- Diaphragm setting / type - Manual with click-stops including half values
- Angle of view diagonal, horizontal, vertical - 92° / 81° / 59°
- Position of entrance pupil - (from apex of 1st lens element)
- Scales - Combined meter/feet graduation
- Filter mount/Lens hood - Series filter VIII in lens hood
- Accessories - Lens hood separate, screw-on type
- View finder - Camera viewfinder
- Materials - Anodized aluminum and optical glass
- Focal length - 21.6 mm
- Length to bayonet flange - length - 66 > 77 mm / 2.60 > 3.03 in (without > with lens hood)
- Largest diameter - approx. 69.5 mm / 2.74 in
- Weight - approx. 580 g / 20.46 oz
- Inscription - SUMMILUX-M 1:1.4/21 ASPH.