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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
    Original price $ 30.89 - Original price $ 30.89
    Original price
    $ 30.89
    $ 30.89 - $ 30.89
    Current price $ 30.89

    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 $ 30.89 - Original price $ 30.89
    Original price
    $ 30.89
    $ 30.89 - $ 30.89
    Current price $ 30.89
  • Explore Scientific Rack and Pinion Focuser 2" Extension Tube - ESRPEXT2
    Original price $ 36.04 - Original price $ 36.04
    Original price
    $ 36.04
    $ 36.04 - $ 36.04
    Current price $ 36.04

    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 $ 36.04 - Original price $ 36.04
    Original price
    $ 36.04
    $ 36.04 - $ 36.04
    Current price $ 36.04
  • Explore Scientific 2.5" Extension Tube for the 2.5" Hex Focuser  - ESHEXEXT2
    Original price $ 41.19 - Original price $ 41.19
    Original price
    $ 41.19
    $ 41.19 - $ 41.19
    Current price $ 41.19

    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 $ 41.19 - Original price $ 41.19
    Original price
    $ 41.19
    $ 41.19 - $ 41.19
    Current price $ 41.19
  • Explore Scientific 2" AR Series Focuser
    Original price $ 205.99 - Original price $ 205.99
    Original price
    $ 205.99
    $ 205.99 - $ 205.99
    Current price $ 205.99

    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 $ 205.99 - Original price $ 205.99
    Original price
    $ 205.99
    $ 205.99 - $ 205.99
    Current price $ 205.99
  • Original price $ 875.49 - Original price $ 1,029.99
    Original price
    $ 875.49 - $ 1,029.99
    $ 875.49 - $ 1,029.99
    Current price $ 875.49

    Explore Scientific 3-inch Self-Centering Focuser - ES-FOC3

    Explore Scientific

    Description With its ability to support heavy imaging trains without sacrificing stability, precision or smooth rotation, the robust Explore Scien...

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    Original price $ 875.49 - Original price $ 1,029.99
    Original price
    $ 875.49 - $ 1,029.99
    $ 875.49 - $ 1,029.99
    Current price $ 875.49
  • Original price $ 66.94 - Original price $ 66.94
    Original price
    $ 66.94
    $ 66.94 - $ 66.94
    Current price $ 66.94

    Explore Scientific Diagonal 3-inch to 2-inch Adapter - DD03-2

    Explore Scientific

    Description This device replaces the barrel on the Explore Scientific 99% Reflective 3-inch Diagonal so the diagonal can be used on 2-inch focuser...

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    Original price $ 66.94 - Original price $ 66.94
    Original price
    $ 66.94
    $ 66.94 - $ 66.94
    Current price $ 66.94
  • Two-Speed 10:1 Focus Knob Mechanism for Explore Scientific and BRESSER 2.5-inch HEX Focusers - 625720
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    Original price $ 102.99 - Original price $ 102.99
    Original price
    $ 102.99
    $ 102.99 - $ 102.99
    Current price $ 102.99

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

    Explore Scientific

    Features Precision all-metal construction with stainless-steel ball bearing for super-smooth action. Attractive silver and black bead-blast finis...

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    Original price $ 102.99 - Original price $ 102.99
    Original price
    $ 102.99
    $ 102.99 - $ 102.99
    Current price $ 102.99
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  • 2" Comet Hunter Focuser - Includes Extension Tubes
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    Original price $ 123.59 - Original price $ 123.59
    Original price
    $ 123.59
    $ 123.59 - $ 123.59
    Current price $ 123.59

    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 $ 123.59 - Original price $ 123.59
    Original price
    $ 123.59
    $ 123.59 - $ 123.59
    Current price $ 123.59
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  • 2.5 Hex Focuser
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    Original price $ 185.39 - Original price $ 185.39
    Original price
    $ 185.39
    $ 185.39 - $ 185.39
    Current price $ 185.39

    2.5 Hex Focuser

    Explore Scientific

    Description Finding and holding that perfect crisp focus is almost effortless with Explore Scientific's Crayford Style Focuser. Defined by its pre...

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    Original price $ 185.39 - Original price $ 185.39
    Original price
    $ 185.39
    $ 185.39 - $ 185.39
    Current price $ 185.39
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  • Explore Scientific APO EDT Series Rack & Pinion Focuser
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    Original price $ 236.89 - Original price $ 236.89
    Original price
    $ 236.89
    $ 236.89 - $ 236.89
    Current price $ 236.89

    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 $ 236.89 - Original price $ 236.89
    Original price
    $ 236.89
    $ 236.89 - $ 236.89
    Current price $ 236.89
    Sold out