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 is currently made in Russia for the M42 lens mount.

Specification[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

  1. ↑ ""Гелиос-44", 2/58, КМЗ, ММЗ, Валдайский з-д "Юпитер"". Archived from the original on October 14, 2008.
  2. ↑ "ZENITcamera: Объектив Гелиос-44". www.zenitcamera.com. Retrieved 2024-01-02.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.