A venerable standard at the top of its form.
The optical computation of this lens leads to perfect image quality that extends into the corners at full aperture, with outstanding contrast over the entire picture area, even in the close-up range. Stopping down to f/2.8 or f/4 brings only a minimal increase in contrast. Distortion is extremely low and practically undetectable. The ideal lens for all photographers who want a high-performance tool that weighs very little and is compact in size.
Angle of view (diagonal, horizontal, vertical): 47, 40, 27 degrees
Optical design:Number of elements/ groups: 6 /4
Focal length: 52.3 mm
Entrance pupil: 25.1mm (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 apreture: f/16
Bayonet: Leica M quick-change bayonet
Filter (type) internal thread for screw-in type filters E39
Lens hood: built-in, telescopic
Dimensions and weight: Length: 43.5 mm
Largest diameter: 53 mm
Weight: approx. 240g / 335 g (black anodized- / silver chrome finish)
Trade-ins are welcome!