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Explore Scientific 3x Focal Extender 2-Inch Barrel 4 Elements

SKU : ES-FE03-020

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  • 3x Focal Extender Lens
  • Adapter for 1.25-Inch Eyepieces


Product Details

  • The Explore Scientific 3x Focal Extender (2.0-Inch O.D.), accepts both 1.25-inch O.D. and 2.0-inch O.D. format eyepieces and camera adapters.

    Fully EMD-Coated on all air-to-air lens surfaces, with all lens elements edge-blackened to produce superior contrast, this focal extender adds some real versatility to your telescope accessory line-up.

    First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender.

    Secondly, most of the time, lower magnification eyepieces such as the 30 mm 82-Degree Series Waterproof Eyepiece have better eye relief than higher power models. When using a focal extender to increase your magnification, you get to enjoy the generous eye relief of the lower power eyepiece, and that's quite a bonus, especially for eyeglass wearers or for those with fast telescopes who can really push high magnification eyepieces. Remember, we also make 1.25-inch O.D. Focal Extenders in 2x, 3x, and 5x models, so there is something for every style of telescope.

  • specifications

    Barrel Size2"
    Free ShippingYes
  • included items


    • Explore Scientific 3x Focal Extender 2-Inch Barrel
    • Adapter 2-Inch to 1.25-Inch
    • Eyepiece Bag



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    Patrick P.
    United States United States

    The Explore Scientific 3x Barlow extender ... Great Addition to your telescope

    I just got the Explore Scientific 3x Barlow extender just in time to view the opposition of Saturn. The description of the extender is exactly as it says. It greatly improves and amplifies the light train to allow for excellent astrophotography. I have just captured my best pictures of Saturn ever.