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The 10-30x50mm Gladiator Zoom Binocular from Barska is designed for long-distance terrestrial and astronomical viewing. The powerful variable magnification range allows the viewer to scan a large field of view and then zoom in on the selected object to make detailed observations. An ergonomically-placed zoom lever allows users to make fast magnification changes while viewing through the eyepieces with a simple movement of their right index or middle finger. The large objectives and ruby multi-coatings draw in copious amounts of light to push the low-light capabilities of the optic, while a large exit pupil at low magnification ensures complete coverage of the user's pupil when it gets fully dilated as light fades. Fold-down eyecups enable comfortable viewing with or without eyewear, and rubber armoring provide a slip-resistant grip. For long duration glassing sessions, or to keep the binocular steady at high magnifications, they can be tripod mounted using an optional adapter. This version of the Gladiator comes with an adjustable neck strap and carrying case in convenient clamshell packaging.
Powerful 10-30x zoom magnification range
Large 50mm objective lenses
Traditional BK7 Porro prism design
Anti-reflection multi-coated optics limit light loss and enhance contrast and color rendition
Red (ruby) lens tint helps to improve image contrast and boosts the appearance of objects against blue and green backgrounds
195 - 65' field of view at 1000 yards at 10x power
Large 5mm exit pupil, at 10x, helps to avoid vignetting in low-light when pupils become dilated
Use and Handling
Convenient, ergonomically-placed zoom lever is easy to manipulate with right index or middle finger while looking through binocular
Zoom indicators on right ocular clearly shows selected magnification for repeatability
Large center focusing wheel
Right-eye dioptric correction
Fold-down rubber eyecups for comfortable use with or without eyewear
Non-reflective matte-black finish
Protective rubber armoring provides a slip-resistant grip