10-30X60 Reverse Porro Binoculars

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Included Warranty: Limited Lifetime
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    10-30X60 Reverse Porro Binoculars
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    Enjoy the outdoors with these long-range Porro binoculars by Barska. The sturdy, rugged design with easy-to-maneuver zooming makes this a perfect way to see mid- and far-range objects. The black rubber body and firm grips are designed for easy use.

    Details

    ITEM#: 14234520

    The Colorado 10-30x60mm Zoom Binoculars give pristine mid to long-range viewing with smooth focusing capabilities, powerful optics, and a rugged body. Zooming in is easy with a large center focus knob and right eye diopter adjustment.

    • Brand: Barska
    • Model: CO11338
    • Body material: Rubber
    • Dimensions: 3.1 inches high x 6.5 inches wide x 9.4 inches long
    • Magnification: 10-30x60
    • Field of view (feet): 189 feet @ 10x, 105 feet @ 30x
    • Field of view (meters): 63 meters @ 10 x, 35 meters @ 30x
    • Angle of view (degrees): 3.6-degrees @ 10x, 2-degrees @ 30x
    • Objective diameter: 60 mm
    • Close focusing distance (m): 32.8/10
    • Exit pupil (mm): 6 @ 10x, 2 @ 30x
    • Relative brightness: 36 @ 10x, 16 @ 30x
    • Eye Relief (mm): 14 @ 10x, 12 @ 30x
    • Lens coating: Fully coated
    • Lens color: Blue
    • Prism type: Porro
    • Prism coating: BAK-7
    • Focusing system: Center
    • Eyecups: Rubber fold down
    • Warranty: Limited lifetime

    Specs

    Features
    Color Black
    Magnification 30 - 40X
    Objective Lens 60 - 69mm
    Dimensions See description
    Manufacturer Warranty Limited Lifetime
    Materials Optical Instruments
    Model Number CO11338

    Product Reviews


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    • Can anyone find better binocs for the money?

      Hi, I looked high ... I looked at Meade.. I looked at Celestion... They were about 30-60% more. And higher... at Pentax. at Redfield even Nikon about double$$ +++ in price. Alas I went low since these had the best reviews found for both birders, very amateur astronomers, and marksmen alike. They are clear and bright to 22 power ( they slowly deteriorate after 22). They focus well even if the field of view is small and getting smaller with magnification. They are easy to handle, for your hands to grip as the weight is not low but neither are they unbalanced or unwieldy. BUT if you have the money to spend and want the best or almost best these are not your lenses. But for the dollar they do what you need to get the job done. Mine is for stadiums to enable me to see what those in the front seats see. To watch nesting birds of prey. They'll work just fine.

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    Questions & Answers

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    Guidelines
    • WHAT DOES REVERSE PORRO MEAN

      Guidelines
      • Thank you for your inquiry. Roof prism, Porro prism, and reverse Porro prism binoculars each use image-erecting prisms to provide correctly oriented images. Without prisms, the image would always appear upside down and reversed. Most of us recognize the Porro prism as a “classic” binocular design with offset prisms while the roof prism binocular is shaped like an H: more streamlined and compact. The size, type, and quality of the prisms used in a binocular’s design affect the clarity of the image. You may prefer one style over another based on its ergonomics. Since roof prism binoculars are more expensive to manufacture, economics will also be a factor in choosing which style is best for you. Porro Prism Binoculars: Porro prism models will deliver good optics for the dollar, but lack the durability and compact styling of roof prism models. In addition, many Porros are not waterproof. Reverse Porro Prism Binoculars: This design allows for a compact binocular that easily fits in your hand. Roof Prism Binoculars: In recent years, the popularity of the roof prism design has increased dramatically. These binoculars are rugged and durable, and you no longer have to spend more money to get good optical quality in this design.

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