50mm f/1.4 ASPH Summilux-M
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- Leica Order No. - 11 891 - 11 892 / LLC -
- Production era - 2006-Current
- Serial nos. -3979722-4069765-408XXXX-
- Variants - Black and Silver versions
- Lens mount - Leica M quick-change bayonet
- Number of lenses/groups - 8 /5
- Focusing range - 0.7 m / 2.3 ft < ∞
- Aperture - f/1.4-f/16 - Setting/Function Preset, with click-stops, half values available, manual diaphragm
- Smallest object field/Largest reproduction ratio - 271 x 407 mm / 1:11.3
- Angle of view (diagonal, horizontal, vertical) - 47°, 40°, 27°
- Position of entrance pupil - 12.7 mm (related to the first lens surface in light direction)
- Scales - Combined meter/feet graduation
- Filter mount/Lens hood - Internal thread for screw-on filters size E46, non-rotating / Built-in, telescopic, lockable
- Accessories -
- Viewfinder - Camera viewfinder
- Materials -
- Focal length - 51.6 mm / 2 in
- Length to bayonet flange - 52.5 mm / 2.1 in
- Largest diameter - 53.5 mm / 2.1 in
- Weight - Chrome plated brass approx. 335 g / 11.8 oz - Black anodized aluminum 204 g / 7.2 oz
- Inscription - LEICA SUMMILUX-M ASPH. 1:1.4/50 E46 4XXXXXX
- Designer - Peter Karbe 22 Feb 2004