Lens Leica Summilux-M 21 f/1.4 ASPH.
Order number 11647
View angle (diagonal/horizontal/vertical)
Full-frame (24 × 36 mm)
92°/81°/59°
   
Lens system  
Number of lenses/assemblies 10/8
Number of aspherical surfaces 2
Position of the entrance pupil before the bayonet 24.4 mm
Focus range 0.7 m to ∞
Focusing  
Scale Combined scale meter (m)/foot (ft)
Smallest object field Full-frame: 685 × 1027 mm
Largest scale 1:29
Diaphragm  
Setting/Function Click-stop diaphragm with half-increment lock settings
Smallest aperture 16
Number of diaphragm blades 9
Bayonet Leica M bayonet with 6-bit encoding
Filter (type) Series VII filter for insertion in lens hood
Lens hood Separate, screw-on
Dimensions  
Length Approx. 66 mm
Diameter Approx. 69.5 mm
Weight Approx. 580 g
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