10-30X60 Reverse Porro Binoculars

by Barska
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ITEM# 14234520
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      Included Warranty: Limited Lifetime
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    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


    Material Rubber
    Color Black
    Lens Coating Prism
    Magnification 30 - 40X
    Objective Lens 60 - 69mm
    Dimensions See Details
    Warranty Limited Lifetime
    Model Number CO11338
    Country of Origin China

    Product Reviews

    5 Stars
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    1 Stars
    • Most Recent

    • Awesome gift
      Verified Purchase

      Great binoculars. Purchased as a gift for Christmas...would be better if the lens caps had attachments to the body. But they glass really well.

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      Cori C. Jan 8, 2017
    • Nice!
      Verified Purchase

      I use them almost everyday now and they work great and are of good quality. :)

      Read More
      jonny5ive Sep 23, 2015
    • easyrecoil
      Verified Purchase


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      snipershooter May 17, 2015
    • Can anyone find better binocs for the money?
      Verified Purchase

      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.

      Read More
      650vstar Nov 20, 2014

    Questions & Answers

    • Q:

      "Why did you choose this product?"

      • A:

        Because of the glass and price , a lot of people do not realize that barska has jap glass and i hope for what i have been told your shipping is on prompt time. THank you and have a great day.Michael S.Fortner

      • A:


      • A:


      • A:

        Positive online reviews.

      Read more Read less
    • Q:


      • A:

        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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    Leaves our warehouse in 1-10 business days. *

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    Items must be returned in new or unused condition and contain all original materials included with the shipment. More Details

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    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.