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 this ideal standard lens an outstanding choice in terms of all criteria, including image quality, speed, size, weight and price. It is also available in combination with the LEICA M7 as part of the entry-level set.
Angle of view (diagonal, horizontal, vertical): 47°, 40°, 27°
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 (2.3 ft) 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: Preset, with clickstops (including half values), manual diaphragm
Smallest aperture: f/16
Bayonet: Leica M quick-change bayonet
Filter (type): internal thread for screw-on filters size E 39
Lens hood: built-in, telescopic
Dimensions and weight
Length: 43.5 mm / 1.7 in
Largest diameter: 53 mm / 2.1 in
Weight: approx. 240 g / 8.5 oz