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    Kowa Genesis 10x33 Green Binoculars with Prominar XD Lens Green GN33 10
    Kowa Genesis 10x33 Green Binoculars with Prominar XD Lens Green GN33 10
    Paypal   US $1,295.00
    Vintage Kowa Wide Angle 7x35 Binocular 10deg FOV Excellent Optics
    Vintage Kowa Wide Angle 7x35 Binocular 10deg FOV Excellent Optics
    Paypal   US $149.95
    KOWA BINOCULARS COATED 7X50 FIELD 71 FEATHERWEIGHT WOW
    KOWA BINOCULARS COATED 7X50 FIELD 71 FEATHERWEIGHT WOW
    Paypal   US $279.99
    Kowa Green Binoculars 8x25 BD25 8GR
    Kowa Green Binoculars 8x25 BD25 8GR
    Paypal   US $285.00
    Kowa 8X32 Roof Prism Wateproof Fogproof Binocular w C3 Coating BD32
    Kowa 8X32 Roof Prism Wateproof Fogproof Binocular w C3 Coating BD32
    Paypal   US $485.00
    KOWA PROMINAR 7 x35 VINTAGE BINOCULARS with Leather Carrying Case NEW
    KOWA PROMINAR 7 x35 VINTAGE BINOCULARS with Leather Carrying Case NEW
    Paypal   US $499.00


    KOWA Genesis33 Commercial


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    Articles and News about Kowa Binoculars

    Binoculars or binocular telescopes, are really two identical symmetrical telescopes mounted together. Because they point in the same direction, they allow the viewer to see a far greater distance than with the naked eye. A binocular has a big advantage over single telescopes as you can see through both eyes and they are easier to hold steadily with two hands.

    The Optics

    The objective lens diameter generally determines how much light is allowed while the magnification will display the ratio of the focal lengths. An example is 8 X 35 (eight times magnification and 35 mm objective diameter) or 7 X 50 (seven times magnification and 50 mm objective diameter). In these two examples, the first one has a higher magnification ( 8 over 7) but allows less light (35 mm is smaller than 50 mm) than the second one. If you are requiring binoculars for low light use, buy the biggest objective diameter.

    Lens Construction and Coatings

    Unfortunately, in any optical instrument used for images (e.g. a telescope, camera, microscope, etc.) light is often reflected and distributed into the view. This can reduce contrast. Reflection can be reduced by adding coating to the optics. Some of the newest techniques are phase-corrected prism and dielectric prism coatings.

    Binoculars designed from the Porro prism design are generally brighter than a roof prism design but newer technologies are reducing the differences (the Porro prism binoculars still have the highest value at a lower price).

    Choosing binoculars

    Roof-prism models are generally lighter and smaller than Porro models, but you will usually pay more. If the binoculars are sealed and filled with nitrogen gas, they will not cloud with condensation.

    Manufacturers Include

    Bushnell Performance Optics

    Canon

    Docter Optik

    Eschenbach Optik

    Fujinon

    Kowa

    Leica

    Leupold & Stevens, Inc.

    Minolta

    Miyauchi

    Nikon

    Olympus

    Optolyth

    Pentax

    Russian Military Binoculars

    Sicong

    Steiner

    Swarovski Optik

    Vixen

    Vortex Optics

    WDtian

    Yunnan State

    Zeiss

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