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When speed is paramount, there’s no substitute for a range-finding binocular. The BX-4 Range HD TBR®/W 10x42mm fuses our DNA® engine and ballistics software with the optical performance diehard hunters and shooters demand.

• Enhance imaging of nebulae with your 8” Rowe-Ackermann Schmidt Astrograph (RASA) by blocking light pollution, improving image contrast, and darkening the sky background.
• This filter transmits only the key Hα-Hβ-OIII wavelengths from emission nebulae, providing high contrast that makes them “pop.”
• This filter selectively blocks wavelengths of light from sources of light polluted skies and natural sky glow.
• Unlike similar filters with narrower bandpasses, this filter was engineered specifically to work with RASA’s fast F/2 optics.
• Fits into the 8” RASA’s integrated filter mount, maintaining peak optical performance.
• Optically flat surfaces free of defects, constructed of Schott glass with anti-reflection coatings.

• Enhance your 8” Rowe-Ackermann Schmidt Astrograph (RASA) by blocking light pollution, improving image contrast, and darkening the sky background.
• This filter selectively blocks wavelengths of light from sources of light pollution, such as streetlights, not broad regions of the spectrum.
• Does not block wavelengths associated with emission nebulae, keeping your nebula images bright and detailed.
• Fits into the 8” RASA’s integrated filter mount, maintaining peak optical performance.
• Optically flat surfaces free of defects, constructed of Schott glass with anti-reflection coatings.

• Multi-Coated Optics
• Waterproof and Fogproof
• Protective Rubber Covering
• Twist-up Eyecups for Quick Adjustment
• Moisture Resistant Neoprene Carrying Case
• Limited Lifetime Warranty

• Multi-Coated Optics
• Waterproof and Fogproof
• Protective Rubber Covering
• Twist-up Eyecups for Quick Adjustment
• Moisture Resistant Neoprene Carrying Case
• Limited Lifetime Warranty

• Celestron’s legendary SkyMaster binoculars get an upgrade with ED objective lenses for superior images virtually free of chromatic aberration with lifelike color, increased resolution, and improved contrast
• Large, 50mm objective lenses offer excellent light-gathering ability—perfect for astronomy
• Threaded eyepieces accept all standard 1.25” astronomical eyepiece filters to bring out details or reduce the effects of light pollution
• BaK-4 prisms and fully multi-coated optics with XLT coatings boost light transmission through the optical path for brighter, more detailed images
• The widely spaced objective lenses of the Porro prism optical design provide an enhanced 3-D view
• Eyeglass-friendly with generous eye relief and padded twist-up eyecups
• Durable rubber-armored housing with improved ergonomics for comfortable use in the field
• Tripod-adaptable for extended viewing sessions

• 12x magnification porro prism binocular
• Large 60 mm objective lens offers maximum image brightness in low-light conditions
• Multi-Coated optics for sharp, clear views
• Suitable for terrestrial or astronomical viewing
• Protective rubber covering for ultra-firm grip
• Large center focus knob for easy focusing
• Tripod adaptable (adapter sold separately)
• Long eye relief ideal for eyeglass wearers
• Carrying case included for travel and safe storage
• Limited Lifetime Warranty provides best protection and product support on the market

• 25th Anniversary Edition Tabletop Dobsonian GOTO with WiFi
• Controlled with SynScan Pro App for iOS and Android
• GOTO via SynScan free app
• DC12V voltage
• Freedom Find dual encoder technology

• Designed to meet the needs of every outdoor enthusiast—waterproof, nitrogen-purged and rubber armored
• Large 50mm objective lenses with tremendous light gathering capability
• Multi-coated optics and BaK-4 prisms provide improved contrast and resolution by increasing light transmission through the entire optical path
• Twist-up eyecups with multiple positions. Eyeglass-friendly with 17.4mm of eye relief