Helios-44

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File:ZeissBiotar58f2-1939text.svg

Zeiss Biotar optical formula

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.

Specifications

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Source:^[2]

Distance scale: 0.5 m to ∞
Aperture: f/2 - f/16
Focal Length: 58 mm
Mount: M39, M42, Pentax-K, Zenit-D
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)

Gallery

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Helios-44 START

Helios-44 START
Helios-44

Helios-44
Helios-44-2

Helios-44-2
Helios-44M

Helios-44M
MC Helios-44M-4

MC Helios-44M-4
MC Helios-44M-6

MC Helios-44M-6

References

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Specifications

Gallery

References

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