Sun Zoom 190-430mm f/5.8

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  • T-Mount, 135-film
  • Focal Length: 190-430mm
  • Lens-construction: 8 groups, 11 elements
  • Angle of View: 6° at 430mm, 12°40' at 190mm
  • Minimum Focusing Distance: 5m / 18ft (In case of using the close-up tube system built-in to the rear barrel of the lens: 1.41m at 190mm, 3m at 410mm)
  • Net weight: ?
  • Filter Size: ?
  • Zooming mechanism: by rotating zoom ring, mechanical compensation by U type cam motion