Focus
Manual
Mount
M42
Format
35mm full frame
Coating
single-coated
Filter Thread
49mm
Spec Notes
CONTAINS THORIUM GLASS: radioactive, and yellows with age. Shorter barrel than the EBC version, all-metal focus ring, and half-stop aperture detents that the EBC lens does not have. Same 6 blades and 49mm filter.
Stabilized
No
Max Aperture
f/1.4
Weather Sealed
No
Aperture Blades
6
Focal Length (Max)
50mm
Focal Length (Min)
50mm