Leica Summicron-M 50 mm f/2 specs
Optical design:
Number of elements / groups: 6 / 4
Focal length: 52.3 mm
Entrance pupil: 25.1 mm (related to the first lens surface in light direction)
Focusing range: 0.7 m to Infinity
Distance setting:
Scale: combined meter/feet-increments
Smallest object field: 277 mm x 416 mm
Highest reproduction ratio: 1:11.5
Diaphragm:
Setting / Type: with clickstops (including half values), manual diaphragm
Smallest aperture: f/16
Bayonet - Leica M quick-change bayonet
Filter (type) - internal thread for screw-in type filters E 39
Lens hood - built-in, telescopic
Dimensions and weight:
Length: 43.5 mm
Largest diameter: 53 mm
Weight: approx. 240 g / 335 g (black anodized- / silver chrome finish)
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Filed in: Leica Camera Lenses
Description: The tried and well-proven optical design of this lens provides for a perfection of picture quality extending all the way to the extreme corners of the image field even at full aperture, as well as outstanding contrast throughout, at all apertures, even at close distances. Stopping down to f/2.8 or f/4 brings only a minimal increase in contrast. Distortion is extremely low and practically invisible. Its well-balanced design makes... read more