Angle of view (diagonal, horizontal, vertical) Optical design Distance setting Diaphragm Bayonet Filter (type) Lens hood Dimensions and weight 40°, 33°, 23° Number of elements / groups:6 / 5 Focal length:61.4 mm Entrance pupil:24.2 mm (related to the first lens surface in light direction) Focusing range: 0.27 m to Infinity, with MACRO-ADAPTER-R 0.23 - 0.18 m Scale: Combined meter/feet-increments Smallest object field: 48 mm x 72 mm Highest reproduction ratio: 1:2, with MACRO-ADAPTER-R 1:1 Setting / Type: Preset diaphragm with clickstops (including half values), Fully automatic diaphragm, also the case with MACRO-ADAPTER-R Smallest aperture: f/22 LEICA R quick-change bayonet for LEICA R3 to LEICA R9 with mechanical, and, for LEICA R8/R9, additional electronic exposure control Internal thread for screw-in type filters E 55 Built-in, telescopic Length:62.3 mm Largest diameter: 67.5 mm
