Ultra Wide Heliar 12mm F5.6 Aspherical II

Same design and picture angle as the Screw Mount 12mm/f5.6 ASPH, the NEW Ultra Wide Heliar 12mm/f5.6 ASPH II M Mount is Range Finder Coupled and allows a screw on filter directly on the lens 67mm diameter fitler thread.

Focal Length  12mm
Aperture Ratio  1:5.6
Smallest Aperture  f22
Lens Construction  8 Groups 10 Elements
Picture Angle  121 degrees
Aperture Blades   9
Nearest Distance  0.5m
Diameter  φ74.6
Length  42.5mm
Weight  230g
Filter Size  φ67
Colour  Black
Mount  M Mount

Optional Accessory
12mm Metal View Finder

Lens Type  Reverse Garireo Finder
Lens Construction  5 Groups, 5 Elements
Magnification  x 0.28
Field Ratio  92% (3m)
Finder Diopter  -0.32D
Weight  55g