[Single film objectiv 82mm 500mm]

1. Occupancy Telescope Lens D82F500 Universal Sheet Multi Film
2. Caliber D: 3.2 inches (82 mm).
3. Focus Length F: 500mm
4. Mirror Holder Type: Aluminum Alloy Popular Mirror Holder
5. Coating: Multi-layer broadband film (400-700NM)
6. Combined image quality: 1/2-1/4.
7. Diameter Resistance: +0/-0.12 mm
8. Center thickness tolerance: ±0.2mm
9. Focal length tolerance: ±0.1%
10. Surface accuracy: 60/40
11. eccentricity: 1
12. Spatial Telescope Optical System: Refracture
Occupancy Telescope Bracket Type: Without Bracket
14. Remark: Two refractive dual isolation objective lens groups. Used for astronomical telescope objective lens, collimator and collimation lens