Helios-44 Explained

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

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)

Notes and References

1. Web site: "Гелиос-44", 2/58, КМЗ, ММЗ, Валдайский з-д "Юпитер". https://web.archive.org/web/20081014083646/http://www.photohistory.ru/1207248188431861.html. October 14, 2008. live.
2. Web site: ZENITcamera: Объектив Гелиос-44 . 2024-01-02 . www.zenitcamera.com.