18mm f/3.8 ASPH Super-Elmar-M
Code - 11 649
Production era - 2009-
Angle of view diagonal, horizontal, vertical - For 35 mm: 100°, 90°, 67° / For LEICA M8 models (18 x 27 mm): 84°, 74°, 53°
Bayonet - Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models
Filter mount/Lens hood - Male thread, non-rotating and with stop for filter holder or 12463 lens hood. Accessory filter holder 14484 for E77 filters available / Separate, screw-on type, included in delivery
Accessories - Hood: 12484 or 12463; Filter holder: 14484; Viewfinder: 12022 or 12023.
Number of lenses/groups - 8 / 7
Focal length - 18.3 mm
Position of entrance pupil - 19.8 mm (related to the first lens surface in light direction)
Focusing range - 0.7 m to infinity
Scales - Combined meter/feet graduation
Smallest object field - 827 mm x 1241 mm (35 mm), 620 x 931 mm (LEICA M8 models)
Largest reproduction ratio - 1:34.6
Aperture/Function - f/3.8-f/16 with click-stops, half values available, 9 blade manual diaphragm
Lowest value - 16 / Number of blades: 9
Length - 58 mm / 2.28 in
Largest diameter - 61 mm / 2.4 in
Weight - approx. 310 g / 10.93 oz
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