Leica Summicron-R 50 mm f/ 2.0 E55 Lens Technical Manual
LEICA SUMMICRON-R 50 mm f/2
2
Engineering drawing
Technical Data
Angle of view (diagonal, horizontal, vertical)
Optical design
Distance setting
Diaphragm
Bayonet
Filter (type)
Lens hood
Dimensions and weight
47°, 40°, 27°
Number of elements / groups: 6 / 4
Focal length: 52.5 mm
Entrance pupil: 20.2 mm (related to the first lens surface in light direction)
Focusing range: 0.5 m to Infinity
Scale: Combined meter/feet-increments
Smallest object field: 180 mm x 270 mm
Highest reproduction ratio: 1:7.5
Setting / Type: Preset diaphragm with clickstops (including half values), Fully automatic diaphragm
Smallest aperture: 16
LEICA R quick-change bayonet for LEICA R3 to LEICA R8 with mechanical, and, for LEICA R8,
additional electronic exposure control
Internal thread for screw-in type filters E 55
Built-in, telescopic
Length: 41 mm
Largest diameter: 66 mm
Weight: approx. 290 g
Number of elements / groups: 6 / 4
Focal length: 52.5 mm
Entrance pupil: 20.2 mm (related to the first lens surface in light direction)
Focusing range: 0.5 m to Infinity
Scale: Combined meter/feet-increments
Smallest object field: 180 mm x 270 mm
Highest reproduction ratio: 1:7.5
Setting / Type: Preset diaphragm with clickstops (including half values), Fully automatic diaphragm
Smallest aperture: 16
LEICA R quick-change bayonet for LEICA R3 to LEICA R8 with mechanical, and, for LEICA R8,
additional electronic exposure control
Internal thread for screw-in type filters E 55
Built-in, telescopic
Length: 41 mm
Largest diameter: 66 mm
Weight: approx. 290 g