Helios-44
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Helios-44 is a Soviet copy of the Carl Zeiss Biotar 58mm ƒ/2 lens produced under the Helios lens brand.[1] The lens was made in the Soviet Union and Russia, primarily for the M42 lens mount.
Specification
Source:[2]
- Distance scale: 0.5 m to ∞
- Aperture: f/2 - f/16
- Focal Length: 58 mm
- Mount: M39, M42, Pentax-K, Zenit-D, Canon EF
- Filter thread: M52 x 0.75 for Helios-44X-X, M49 x 0.75 for other
- Weight: 230 g
- Resolution: 50/30 lines per millimeter (for Helios-44M-7)
References
Wikimedia Commons has media related to Helios-44 lenses.
