Celestron’s SkyMaster Series of large aperture binoculars are a phenomenal value for high performance binoculars ideal for astronomical viewing or for terrestrial (land) use – especially over long distances. Each SkyMaster model features high quality BaK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions.
| Magnification: |
20x |
| Objective Lens Diameter: |
80mm |
| Focal Length of Objective Lens: |
328.6mm |
| Angular Field of View: |
3.7° |
| Linear Field of View at 1000m |
65 m |
| Exit Pupil: |
4mm |
| Eye Relief: |
18mm |
| Close Focus: |
33 m |
| Interpupillary Distance (max): |
72mm |
| Interpupillary Distance (min): |
56mm (2.20″) |
| Diopter Adjustment Range: |
-4 to +8 |
| Twilight Factor: |
40 |
| Relative Brightness: |
16 |
| Limiting Stellar Magnitude: |
Ideal:Â 12.02 |Â Moderate:Â 11.02 |Â Poor:Â 10.02 |
| Lens Coatings: |
Multi-Coated |
| Prism Glass (Type): |
BaK-4 |
| Prism Coatings: |
N/A |
| Weight: |
2.2kg |
| Environmental Protection: |
Water Resistant |
| Nitrogen Filled: |
No |
| Tripod Adaptable: |
Yes |
| Carrying Case: |
Nylon |
| Dimensions: |
228mm x 120mm x 325mm |
| Included Items: |
Objective lens caps
Rainguard
Carrying case
Neck strap
Lens cloth
Instruction manual |
| Solar Warning |
- Never look directly at the Sun with the naked eye or with this optic. Permanent and irreversible eye damage may result.
- Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.
- Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.
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