Leica APO-Summicron M 50/2 ASPH black

Leica APO Summicron-M 50/2 ASPH.
 
The new Leica APO-Summicron-M 50 mm f/2 ASPH. lens is
yet more clear proof of Leica's leading role in optical excellence.
With this new lens, Leica engineers have successfully expanded
the limits of the technically possible to set new standards in
imaging performance. It is the first lens ever to fully exploit the
capabilities of modern high-resolution camera systems without
any compromises.
 

Technical Data:
 
Angle of view (diagonal, horizontal, vertical) 47° / 40° / 27°
(With Leica M8 models: 36° / 30° / 20°)
 
Optical design Number of lenses/groups: 8 / 5
Position of entrance pupil (from bayonet flange): 24.4 mm
Focus range: 0.7 m to 8
Distance setting Scales: Combined meter / graduation
 
Smallest object field: approx. 271 mm x 407 mm
(With Leica M8 models: 203 mm x 305 mm)
 
Largest reproduction ratio: approx. 1:11.3
Aperture Setting / Function: prefix with click-stops, half steps
Lowest value: 16
Bayonet Leica M quick-change bayonet
Lens hood Built-in, extendable by rotating
Dimensions and weight Length: approx. 47 mm
Largest diameter: approx. 53 mm
Weight: approx. 300 g
Filter mount Female thread for screw-on E39 filters, non