• Binocular Guides

    KOMZ binoculars

    “KOMZ” stands for “Kazan Optical and Mechanical Plant”. Russian brand, one of the oldest manufacturers of high-quality binoculars. Its design contains all the best developments of domestic designers and takes into account all the main modern trends of the world scale. The purpose of the devices is universal, suitable for field and special observations of […]

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  • Porro binoculars vs Roof binoculars
    How to choose binoculars

    Porro binoculars vs Roof binoculars

    While binoculars may not seem very complicated and easy to buy there is a lot more that goes into it than just buying a pair which helps you look further. If you want a high-quality tool that provides you a variety of uses, you need to ask yourself one important question: Porro or roof prism […]

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  • BAK 4 VS BK 7 prism glass in binoculars: what to choose?
    How to choose binoculars

    BAK 4 VS BK 7 prism glass in binoculars: what to choose?

    If you haven’t heard already there are two types of prisms among many others. The BAK-4 and the BK-7. We will provide an in-depth study into what both of these binoculars entail so you can make the best choice. What is BAK 4 and BK 7 Prism? Firstly, you need to know what these prisms […]

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  • Roof prisms
    Binocular Guides

    Roof prisms

    If you are faced with the need to choose binoculars, then you probably already noticed that modern binoculars have either a direct design or offset. In the first case, the binoculars are similar to 2 spotting scopes fastened together. The second type has an offset shape. A roof prism system is a type of prism […]

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  • How do Refracting Telescopes work?
    Telescope Guides

    How do Refracting Telescopes work?

    A refractor, or a lens telescope, is the oldest type of telescopes. It was invented in 1609 by Galileo Galilei and was updated in consequence. Firstly, a refractor used two lenses: convex as an objective and concave in an eyepiece, that caused spherical and chromatic aberrations. This scheme was supplemented by a second lens of […]

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