Celestron SkyMaster Pro ED 7x50 Porro Prism Binoculars — Premium wide-field binoculars combining 7× magnification, 50mm objectives and extra-low dispersion glass for bright, high-contrast astronomical and terrestrial views with reduced colour fringing.
Wide-Field 7×50 Viewing
The 7.8° angular field makes it easier to scan star fields, follow constellations and survey landscapes. Generous 20.8mm eye relief and three-position twist-up eyecups support comfortable viewing with or without spectacles.
ED Glass and XLT Fully Multi-Coated Optics
Extra-low dispersion objective glass reduces chromatic aberration so bright objects show less colour fringing, with improved contrast, colour fidelity and fine detail. BaK-4 Porro prisms and Celestron's XLT fully multi-coated optical surfaces support bright, high-contrast views across the optical path.
The widely spaced Porro objectives also enhance depth perception for terrestrial viewing.
Comfortable Centre Focusing
A central focus wheel adjusts both barrels, while the right-eyepiece dioptre provides ±3 compensation for differences between the user's eyes. Padded twist-up eyecups offer retracted, intermediate and extended positions for viewing with or without spectacles.
Each eyepiece is threaded for compatible standard 1.25-inch astronomical filters. Filters are optional and are not included. Never use these threads with solar eyepiece filters.
IPX7 Waterproof and Nitrogen Filled
The rubber-armoured housing is rated waterproof to IPX7 and filled with dry nitrogen gas to help prevent internal fogging. Keep the binocular clean and dry after use and replace all lens caps before storage.
Tripod Mounting
At 1.255kg, short handheld sessions are practical for many users. For longer viewing, remove the front logo plate and fit a compatible Celestron binocular tripod adapter to the built-in threads. The adapter and tripod are sold separately.
What Is Included?
- SkyMaster Pro ED 7x50 binoculars
- Objective lens caps
- Eyepiece covers / rainguard
- Neck strap
- Lens cloth
- Non-silica desiccant
- Deluxe nylon carrying case
- Five-language instruction manual
Please note: A tripod, optional astronomy filters and any item not listed above are not stated as included. A binocular tripod adapter is sold separately.
Specifications
Optics and Viewing
| Optical design | Porro prism binocular with ED objective lenses |
|---|---|
| Magnification | 7× |
| Objective diameter | 50mm |
| Angular field of view | 7.8° |
| Linear field of view | 136m at 1,000m (409ft at 1,000yd) |
| Exit pupil | 6.4mm |
| Eye relief | 20.8mm |
| Close focus | 8m (26.2ft) |
| Interpupillary distance | 56–72mm |
| Dioptre adjustment | ±3 |
| Focusing system | Centre focus with right-eyepiece dioptre |
| Lens coatings | Fully multi-coated with Celestron XLT coatings |
| Prism glass | BaK-4 |
| Twilight factor | 18.7 |
| Relative brightness | 51.02 |
| Limiting stellar magnitude | 10.99 ideal; 9.99 moderate; 8.99 poor conditions |
| Eyepiece filter compatibility | Standard threaded 1.25-inch astronomical filters; filters not included |
Construction and Size
| Environmental protection | Waterproof (IPX7) |
|---|---|
| Nitrogen filled | Yes |
| Tripod mounting | Built-in ¼-inch tripod-adapter threads beneath front logo plate; adapter sold separately |
| Carrying case | Deluxe nylon carrying case |
| Dimensions | 180 × 198 × 64mm (7.1 × 7.8 × 2.5 inches) |
| Published binocular weight | 1.255kg (44.3oz) |
Solar Safety
Warning: Never look directly at or near the Sun through these binoculars.
These are not solar binoculars. Unfiltered sunlight can cause immediate and permanent eye injury and may damage the binoculars.
Never project an image of the Sun and never attach an eyepiece-type solar filter.
Instruction Manual
The official SkyMaster Pro ED instruction manual covers items 72033, 72034 and 72035 and is provided in English, French, German, Italian and Spanish.