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Wide Angle 76 Degree BAK 4 Porro Prism Binoculars 8x Magnification

    Buy cheap Wide Angle 76 Degree BAK 4 Porro Prism Binoculars 8x Magnification from wholesalers
     
    Buy cheap Wide Angle 76 Degree BAK 4 Porro Prism Binoculars 8x Magnification from wholesalers
    • Buy cheap Wide Angle 76 Degree BAK 4 Porro Prism Binoculars 8x Magnification from wholesalers
    • Buy cheap Wide Angle 76 Degree BAK 4 Porro Prism Binoculars 8x Magnification from wholesalers

    Wide Angle 76 Degree BAK 4 Porro Prism Binoculars 8x Magnification

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    Brand Name : Kinglux Optics
    Model Number : BM1118-8x40mm
    Payment Terms : L/C, T/T, Western Union
    Supply Ability : 50000
    Delivery Time : 45-60
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    Wide Angle 76 Degree BAK 4 Porro Prism Binoculars 8x Magnification

    Wide Angle 76 Degree BAK 4 Porro Prism Binoculars 8x Magnification


    8x40mm Porro Prism Binoculars 8x Magnification 40mm Objective Wide Angle 76° BAK-4 prisms


    The 8-power wide-angle binoculars are excellent for birding, nature viewing or sporting events!
    High-quality BAK-4 prisms and fully multi-coated eyepiece and objective lenses ensure maximum image quality
    Long 26mm eye relief lets eyeglass wearers leave their glasses on and take in the full field of view
    Rugged cast-metal alloy body stands up to field use; rubber armored for a secure grip
    Includes soft case to store and transport the binoculars, a deluxe wide neck strap and lens caps


    Real field of view
    Real field of view is the angle of the visible field, seen without moving the binoculars, measured from the central point of the objective lens. The larger the value is, the wider the viewfield available. For example, binoculars with a wider field of view are advantageous for locating fast-moving wild birds within the vertical viewfield. This also applies for finding small nebulas or a cluster of stars in astronomical observations.


    Apparent field of view is the angle of the magnified field when you look through binoculars.


    The larger the apparent field of view is, the wider the field of view you can see even at high magnifications.


    With the conventional method used previously, the apparent field of view was calculated by multiplying the real field of view by the binocular magnification. (With this formula, apparent field of view wider than 65˚ is called wide field of view.)


    Porro prism binoculars can be identified by their offset tubes; the objective lens is not in line with the ocular lens. The front lenses are usually closer together than the rear lenses, but the reverse can also be true, particularly in compact models. The Porro prism design is usually optically superior to the roof prism design, especially in medium priced class binoculars. Porro prism binoculars have a single pivot between the two halves of the binocular, and are therefore easy to adjust for the distance between your eyes.


    Rugged Waterproof, Fog proof Construction. Bright, Multicoated Optics. Long Eye Relief for Eyeglass Wearers. Rubber Armored. Multi-Click BaK4 High Index Prisms.


    Prism Coatings
    Multilayer coating is also applied to prisms to raise transmittance. A roof prism system has one surface that does not feature total internal reflection, so vapor deposition with metals, etc. must be used to raise the reflectivity of this surface. Also, phase-correction coating on roof surface ensures high-contrast images.

    Features:
    ● 8x Magnification
    ● 40mm Objective
    ● Wide Field of View: 166m / 1000M 498ft / 1000yds
    ● Wide Angle - Apparent Field of View:76°
    ● Prism Glass:BaK-4
    ● Prism System - Porro
    ● Fully Coated Lenses



    Specification


    ModelBM1118
    Specification8x40mm10x50mm
    Magnification8x10x
    Obj.lens (mm)4050
    Eyepiece diameter(mm)2626
    Field Angle9.5°7.6°
    Field of View @ 1000m166m133m
    Field of View @ 1000yds498ft399ft
    Apparent Field of View76°76°
    Exit pupil (mm)5.05.0
    Eye relief (mm)18.018.0
    Diopter Adjustment±5±5
    Dusk Index17.8922.36
    Relative Brightness2525
    Prism SystemPorroPorro
    Prism GlassBak4Bak4
    Focus SystemCenterCenter
    Lens CoatingFully MultiFully Multi
    EyecupsTwist-UpTwist-Up
    Size (mm)187x60x136195X61X164
    Weight (g)825g945 g

    F.A.Q.
    Q:1.Can you produce the products with our brand?
    A: We offer logo laser engraved silk-screen printing or sticker trade make on product,
    and customized package is also available. Specific details can be discussed.
    Q: 2.How how can I pay the order?
    A: Payment terms are available by Paypal, T/T or Weston Union. Specific details can be discussed.
    Q: 3. How do you control the quality?
    A: BCI - we have quality control proecess, from procurement, production, packing to shipment all
    process are under strict control and are fully traceable.


    From finding the trail less traveled to perfecting your shot — you belong outdoors. we develop optics gear to empower you to get out and experience your passion, because we love the outdoors as much as you.BCI GROUP LTD.. NEVER MISS


    Quality Wide Angle 76 Degree BAK 4 Porro Prism Binoculars 8x Magnification for sale
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