Expanded Specifications Celestron 25x100 Skymaster Porro Prism Binoculars
| Magnification: | 25x |
| Objective Lens Diameter: | 100mm (3.94") |
| Focal Length of Objective Lens: | 417.32mm (16.43") |
| Angular Field of View: | 3° |
| Linear Field of View (@1000 yds) / @1000 m): | 156 ft (52 m) |
| Exit Pupil: | 4mm (.15") |
| Eye Relief: | 15mm (.59") |
| Close Focus: | 80 ft (24.4 m) |
| Interpupillary Distance (max): | 72mm (2.83") |
| Interpupillary Distance (min): | 56mm (2.20") |
| Diopter Adjustment Range: | ±5 |
| Twilight Factor: | 50 |
| Relative Brightness: | 16 |
| Limiting Stellar Magnitude: | Ideal: 12.50 | Moderate: 11.50 | Poor: 10.50 |
| Lens Coatings: | Multi-Coated |
| Prism Glass (Type): | BaK-4 |
| Prism Coatings: | N/A |
| Weight: | 140 oz (3969 g) |
| Environmental Protection: | Water Resistant |
| Nitrogen Filled: | No |
| Tripod Adaptable: | Yes |
| Carrying Case: | Nylon |
| Dimensions: | 256mm x 130mm x 388mm (10.1" x5.1" x 15.28") |
| Included Items: | Objective lens caps Rainguard Carrying case Neck strap Lens cloth Instruction manual |
