Sun Zoom 190-430mm f/5.8
- 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