Celestron Cometron 7x50
Model 71198
The Celestron Cometron 7×50 is designed for astronomy and wide-field night-sky observation, combining 7x magnification with large 50mm objective lenses that gather substantial light in low-light conditions. Its 6.6° field of view makes it useful for scanning large areas of the sky, while multi-coated optics and BK7 Porro prisms support clear viewing. The 7.1mm exit pupil and tripod adaptability make it suitable for stargazing, comet watching, and observing the Moon.
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Key Features
The Celestron Cometron 7×50 combines 7x magnification, large 50mm objectives, a wide field of view, and a bright 7.1mm exit pupil for astronomy.
7x
Magnification
50 mm
Objective Lens
6.6°
Field of View
344 ft
Field of View at 1,000 yd
7.1 mm
Exit Pupil
BK7
Prism Glass
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Quick Specifications
| Specification | Celestron Cometron 7x50 |
|---|---|
| Model / Item Number | 71198 |
| Magnification | 7x |
| Objective Lens | 50 mm |
| Optical Design | Porro Prism |
| Field of View | 6.6° / 344 ft @ 1,000 yd |
| Exit Pupil | 7.1 mm |
| Eye Relief | 13 mm |
| Close Focus | 26.2 ft / 8 m |
| Lens Coatings | Multi-Coated |
| Tripod Adaptable | Yes |
About This Model
The Celestron Cometron 7×50 is designed specifically for wide-field astronomy and nighttime observation. Its 7x magnification provides a steady viewing perspective, while the 50mm objective lenses offer strong light-gathering capability for stargazing, comet watching, and viewing lunar craters.
A 6.6° angular field of view allows observers to cover a broad section of the sky, making it easier to locate and follow celestial objects. The 344-foot field of view at 1,000 yards complements the wide-angle optical design, while the 7.1mm exit pupil is well suited to nighttime and low-light viewing.
The binoculars use multi-coated optics and BK7 Porro prisms, with a 13mm eye relief and a close-focus distance of 26.2 feet. The rubberized aluminum housing is designed for outdoor use, and the binoculars are tripod adaptable for longer observation sessions when additional stability is useful.
Full Specifications
Explore the complete Celestron Cometron 7×50 specifications, including optical performance, dimensions, focusing, coatings, and environmental protection.
| Specification | Celestron Cometron 7x50 |
|---|---|
| Brand | Celestron |
| Model / Item Number | 71198 |
| ASIN | B00DV6SI3Q |
| Magnification | 7x |
| Objective Lens Diameter | 50 mm (1.97") |
| Optical Design | Porro Prism |
| Prism Glass | BK7 |
| Prism Coatings | N/A |
| Lens Coatings | Multi-Coated |
| Angular Field of View | 6.6° |
| Linear Field of View | 344 ft (105 m) @ 1,000 yd (1,000 m) |
| Exit Pupil | 7.1 mm (0.28") |
| Eye Relief | 13 mm (0.51") |
| Close Focus | 26.2 ft (8 m) |
| Interpupillary Distance — Maximum | 72 mm (2.83") |
| Interpupillary Distance — Minimum | 56 mm (2.20") |
| Diopter Adjustment Range | ±3 |
| Twilight Factor | 18.7 |
| Relative Brightness | 50.41 |
| Limiting Stellar Magnitude — Ideal | 10.99 |
| Limiting Stellar Magnitude — Moderate | 9.99 |
| Limiting Stellar Magnitude — Poor | 8.99 |
| Environmental Protection | Water Resistant |
| Nitrogen Filled | No |
| Tripod Adaptable | Yes |
| Weight | 27.3 oz (774 g) |
| Dimensions | 168 × 198 × 64 mm (6.6 × 7.8 × 2.5") |
| Carrying Case | Woven Nylon |
| Included Items | Neck strap, carrying case, objective lens caps, eyepiece caps, lens cloth, instruction manual |
Solar Safety Notice: Never look directly at the Sun through these binoculars. Direct solar viewing can cause permanent and irreversible eye damage.
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Where to Buy
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