50mm f/2 Summicron-R II

• Leica Order No. - 11 215 - 11 216 - 11 345-ROM LLC - 123

• Era 1976-2009 / Serial Nos. 2777651-

• Lens mount - LEICA R-bayonet for LEICA R3 to LEICA R9 with mechanical, and, for LEICA R8/R9, additional electronic exposure control

• Variants - R-only and 3-cam versions

• Number of lenses/groups - 6 / 4

• Focusing range - 0.5 m / 19.7 in < ∞

• Aperture - f/2 > f/16 - Preset diaphragm with clickstops (including half values), Fully automatic diaphragm

• Smallest object field/Largest reproduction ratio - 180 mm x 270 mm / 1:7.5

• Angle of view (diagonal, horizontal, vertical) - 47°, 40°, 27°

• Position of entrance pupil - 20.2 mm / 0.8 in (related to the first lens surface in light direction)

• Scales - Combined meter/feet graduation

• Filter mount/Lens hood - Internal thread for screw-in type filters E 55 / Built-in, telescopic

• Accessories - ELPRO close focusing attachments type 1 and 2

• Viewfinder - Camera viewfinder

• Materials - Anodized aluminum and optical glass

• Focal length - 52.5 mm / 2.07 in

• Length to bayonet flange - 41 mm / 1.6 in

• Largest diameter - 66 mm / 2.6 in

• Weight - 290 g / 10.2 oz

• Inscription - LEICA SUMMICRON-R 1:2/50 E 55 3XXXXXX or LEITZ SUMMICRON-R 1:2/50 3XXXXXX

• On the street - $US 1,495 in 2008

Puts-R courtesy of Mario Mazziol