Voigtländer M 21/1.8 Ultron

Aspheric high speed wide-angle lens and integrated, non-detachable, lens hood.
Focal Length 21 mm
Aperture Ratio 1:1,8
Minimum Aperture F 22
Lens Construction 13 elements in 11 groups
Angle of View 91?
Aperture Blades 10
Minimum Focus 0,5 m
Maximum Diameter 69 mm
Length 78,4 mm
Mount M-Bajonett (VM)
Weight 412 g
Filter Size 58 mm
Color black
Others integrated lenshood (not detachable), rangefinder can be combined
Optional ---