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Flatteners, Reducers & Extenders

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  • 0.8x reducer/field flattener for f/6 refractors
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    $149.95 - $149.95
    $149.95
    $149.95 - $149.95
    $149.95

    Astro-Tech 0.8X Reducer/Field Flattener For f/6 Refractors

    Astro-Tech
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    This economical Astro-Tech 2" 0.8x reducer/field flattener is designed for astrophotography with f/6 focal ratio refractors, but will also work wel...

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    $149.95 - $149.95
    $149.95
    $149.95 - $149.95
    $149.95
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  • Sold out
    $149.95 - $149.95
    $149.95
    $149.95 - $149.95
    $149.95

    Astro-Tech 2" Field Flattener for Imaging with Astro-Tech and TMB Refractors

    Astro-Tech
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    New for August 2021, thread on adatper tops to choose between 42mm T-threads and 48mm T-threads. Named a Sky & Telescope Hot Product of the Yea...

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    $149.95 - $149.95
    $149.95
    $149.95 - $149.95
    $149.95
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  • 0.5X focal reducer for Celestron, Meade, and Orion CCD imaging cameras
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    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95

    Antares 0.5X Focal Reducer for Celestron, Meade, and Orion CCD Imaging Cameras

    Antares
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    This Antares 1.25" 0.5x focal reducer lens (tele-compressor) is used under the Orion brand name to thread into the nosepiece of Orion StarShoot Sol...

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    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95
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  • F/6.3 focal reducer for Schmidt-Cassegrains
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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Antares f/6.3 Focal Reducer for Schmidt-Cassegrains

    Antares
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    This focal reducer and field flattener consists of a four-element multicoated 40mm lens in a metal cell. It threads onto the rear cell of 5" to 16"...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
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  • "Explore Scientific adapter for connecting 3-inch field flattener or 0.7x reducer to 2.5-inch HEX focuser"
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    $89.99 - $89.99
    $89.99
    $89.99 - $89.99
    $89.99

    Explore Scientific Adapter For 3" Field Flattener .7x Reducer To Attach To 2.5" Hex Focuser

    Explore Scientific
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      Explore Scientific Adapter for 3" Field Flattener / 0.7x Reducer to Attach to 2.5" Hex Focuser If you're using the Explore Scientific 2.5" Hex Fo...

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    $89.99 - $89.99
    $89.99
    $89.99 - $89.99
    $89.99
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  • Sold out
    $595.00 - $595.00
    $595.00
    $595.00 - $595.00
    $595.00

    Questar Achromatic 0.44x Focal Reducer

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    This Questar 0.44x achromatic focal reducer gives you faster photographic speeds with both 3.5" and 7" Questars. This 100mm focal length positive a...

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    $595.00 - $595.00
    $595.00
    $595.00 - $595.00
    $595.00
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  • Sold out
    $595.00 - $595.00
    $595.00
    $595.00 - $595.00
    $595.00

    Questar Achromatic 0.6x Focal Reducer

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    This Questar 0.6x achromatic focal reducer gives you faster photographic speeds with both 3.5" and 7" Questars. This 130mm focal length positive ac...

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    $595.00 - $595.00
    $595.00
    $595.00 - $595.00
    $595.00
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