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LEICA SUPER ELMAR-M 21mm f/3.4 ASPH.
Engineering drawing
2
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 ange): 24.4 mm
Focus range: 0.7 m to ∞
Distance setting Scales: Combined meter / graduation
Smallestobjecteld: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: prex 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 lters, non-rotating
LEICA APO-SUMMICRON-M 50 mm f/2 ASPH.