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Focusers

It takes more than excellent optics for your telescope to truly perform. If you want to capture the intricacies of our Moon’s winding Hadley Rille or the spiraling arms of the Pinwheel Galaxy, you will need to have a superior focuser in your astronomical arsenal. With an Explore Scientific dual-speed focuser, you can smoothly find and hold that perfect crisp image. 

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  • Explore Scientific Rack and Pinion Focuser 1" Extension Tube - ESRPEXT1
    Explore Scientific Rack and Pinion Focuser 1" Extension Tube - ESRPEXT1
    Original price $ 29.99 - Original price $ 29.99
    Original price
    $ 29.99
    $ 29.99 - $ 29.99
    Current price $ 29.99

    Explore Scientific Rack and Pinion Focuser Half-Inch Extension Tube - ESRPEXT1

    Explore Scientific

    Explore Scientific Rack and Pinion Focuser Extension Tube adds half an inch to our 2-inch Rack and Pinion focusers on our ED APO telescopes. CA Res...

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    Original price $ 29.99 - Original price $ 29.99
    Original price
    $ 29.99
    $ 29.99 - $ 29.99
    Current price $ 29.99
  • Explore Scientific Rack and Pinion Focuser 2" Extension Tube - ESRPEXT2
    Explore Scientific Rack and Pinion Focuser 2" Extension Tube - ESRPEXT2
    Original price $ 34.99 - Original price $ 34.99
    Original price
    $ 34.99
    $ 34.99 - $ 34.99
    Current price $ 34.99

    Explore Scientific Rack and Pinion Focuser 1.5-inch Extension Tube - ESRPEXT2

    Explore Scientific

    Explore Scientific Rack and Pinion Focuser Extension Tube adds 1.5 inches to the 2-inch Rack and Pinion focusers on our ED APO telescopes. CA Resid...

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    Original price $ 34.99 - Original price $ 34.99
    Original price
    $ 34.99
    $ 34.99 - $ 34.99
    Current price $ 34.99
  • Explore Scientific 2.5" Extension Tube for the 2.5" Hex Focuser  - ESHEXEXT2
    Original price $ 39.99 - Original price $ 39.99
    Original price
    $ 39.99
    $ 39.99 - $ 39.99
    Current price $ 39.99

    Explore Scientific 1.5-Inch Extension Tube for the 2.5" Hex Focuser - ESHEXEXT2

    Explore Scientific

    Explore Scientific 1.5-Inch Extension Tube adds 1.5 inches to the 2.5-Inch Hex Focuser  - ESHEXEXT2   37 mm tall CA Residents: Prop 65 WARNING(S)

    Original price $ 39.99 - Original price $ 39.99
    Original price
    $ 39.99
    $ 39.99 - $ 39.99
    Current price $ 39.99
  • Two-Speed 10:1 Focus Knob Mechanism for Explore Scientific and BRESSER 2.5-inch HEX Focusers - 625720
    Two-Speed 10:1 Focus Knob Mechanism for Explore Scientific and BRESSER 2.5-inch HEX Focusers - 625720
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    Original price $ 71.99 - Original price $ 71.99
    Original price
    $ 71.99
    $ 71.99 - $ 71.99
    Current price $ 71.99

    Two-Speed 10:1 Focus Knob Mechanism for Explore Scientific and BRESSER 2.5-inch HEX Focusers - 625720

    Explore Scientific

    Description Sometimes you need that precision focus adjustment, especially for high-power observing or for making images. The Two-Speed 10:1 Focus...

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    Original price $ 71.99 - Original price $ 71.99
    Original price
    $ 71.99
    $ 71.99 - $ 71.99
    Current price $ 71.99
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  • Explore Scientific 2" AR Series Focuser
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    Original price $ 199.99 - Original price $ 199.99
    Original price
    $ 199.99
    $ 199.99 - $ 199.99
    Current price $ 199.99

    Explore Scientific 2" AR Series Focuser

    Explore Scientific

    Description Explore Scientific’s dual speed, 2" AR Series Focuser comes with a 1.25" compression ring eyepiece adapter for added versatility. This...

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    Original price $ 199.99 - Original price $ 199.99
    Original price
    $ 199.99
    $ 199.99 - $ 199.99
    Current price $ 199.99
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  • 2" Comet Hunter Focuser - Includes Extension Tubes
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    Original price $ 119.99 - Original price $ 119.99
    Original price
    $ 119.99
    $ 119.99 - $ 119.99
    Current price $ 119.99

    2" Comet Hunter Focuser - Includes Extension Tubes

    Explore Scientific

    Description Explore Scientific™ David H. Levy Comet Hunter Telescope is rich in quality components. Among those is the 2? Comet Hunter Focuser, wh...

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    Original price $ 119.99 - Original price $ 119.99
    Original price
    $ 119.99
    $ 119.99 - $ 119.99
    Current price $ 119.99
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  • 2.5 Hex Focuser
    2.5 Hex Focuser
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    Original price $ 179.99 - Original price $ 179.99
    Original price
    $ 179.99
    $ 179.99 - $ 179.99
    Current price $ 179.99

    2.5 Hex Focuser

    Explore Scientific

    Description Specs Warranty Finding and holding that perfect crisp focus is almost effortless with Explore Scientific's Crayford Style Focuser. ...

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    Original price $ 179.99 - Original price $ 179.99
    Original price
    $ 179.99
    $ 179.99 - $ 179.99
    Current price $ 179.99
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  • Explore Scientific APO EDT Series Rack & Pinion Focuser
    Explore Scientific APO EDT Series Rack & Pinion Focuser
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    Original price $ 229.99 - Original price $ 229.99
    Original price
    $ 229.99
    $ 229.99 - $ 229.99
    Current price $ 229.99

    Explore Scientific APO EDT Series Rack & Pinion Focuser

    Explore Scientific

    Description Finding and holding that perfect crisp focus is almost effortless with Explore Scientific’s Rack & Pinion Focuser. Defined by its ...

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    Original price $ 229.99 - Original price $ 229.99
    Original price
    $ 229.99
    $ 229.99 - $ 229.99
    Current price $ 229.99
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