Best Prism Optics

Celestron Skymaster 25X70 Binocular

Large 70 mm objective lens offers maximum image brightness in low-light and long-range conditions.
Ultra sharp focus across the field of view.
Multi-Coated optics for sharp, clear views.
Suitable for terrestrial or astronomical viewing.

Rugged rubber-armored coating to provide a non-slip grip, even in the wettest conditions.
Anti-reflection multi-coated optics improve light transmission across the entire visible spectrum.
High-reflectivity silver-alloy coatings reduce internal diffraction for improved light transmission.

Durable and lightweight, with nitrogen-purged optics to prevent fogging and BAK-4 prisms for sharp images.
IPX7 waterproof rating so they are submersible.

Fully coated optics with porro prism system.
Come with table tripod and soft carrying case.
The highest clarity range is at 150 yards. Beyond 150 yards, the image will naturally start to become blurry..

[ Professional Roof Prism Binoculars ] Designed with 8X power magnification, 21mm objective lens and 369ft/1000yds large field of view, allows you get....
[ Pocket Binoculars Mini Size ] The lightest Roof binoculars for only 175g, Lightweight as the phone. Fordable and portable design perfect for taking....
[ HD Vision with Quality Optics ] Lens made with Bk-7 Roof Prism and FMC muti-coated broadband green film increasing light transmission for a brighter....
[ Easy to Focus ] Adjust by smooth "center-focus knob" and right eye lens, easy to focus even for kids. Suitable for whole family both adults and....
[ Reliable After Service ] Any time you encounter any problems don't hesitate to contact us. We will present a satisfactory solution for you..

PERFECT FOR MARINE - Marine binoculars with 7x magnification and 50mm objective lens.
22 mm eye relief,6.8mm exit pupil,and field of view is 396 feet....
ADAPT TO EXTREME ENVIRONMENT - Completly waterproof and float in water.Nitrogen-purged fog proofed Stable,comfortable to hold and highly durable..
BRIGHT AND CLEAR - Porro prism system for a wide field of view.Premium BAK4 prism and Fully multi-coated optics produce bright,crisp images..
COMPASS & RANGEFINDER - Illuminated Compass built-in for direction location,with an internal rangefinder for determining distance and size of objects..
MILITARY STANDARS - Non-slip rubber armor absorbs shock & provides a firm grip.Tripod adapter fitting for tripod mounting for increased stability..

...ated in the design allow for contrast-rich, bright viewing under all light conditions..
Versatile to use: these binoculars are designed for astronomy, bird watching, hiking, stargazing, traveling and sport scenes. Offering great visibility and brightness for both indoor and outdoor viewing..
Fully multi-coated: these optics assure maximum light Transmission resulting in high quality viewing. Every surface of every element is fully coated, minimizing internal glare and flare and giving a bright clear view..
High-quality BaK4 Prism: an excellent refractive Index provides bright and clear images throughout the entire field of view, and whilst also allowing for true-to-life color reproduction..
ROBUST BODY: Aluminum-diecast body adds strength and durability..
Rubber coated body: The entire binocular's body is housed in rubber Coat for shock resistance whilst also allowing for a reliable grip.
Porto prism binoculars: The traditional Porto prism binoculars have a design advantage to deliver a good optical performance. The shape also allows for a greater distance between the objective lenses, enabling you to easily enjoy the three-dimensional vision that these binoculars specialize in..
Pentax binoculars since 1938: bringing together technology cultivated through ....