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    $199.95

    Astro-Tech 1X Field Flattener For Astro-Tech AT130EDT Triplet APO Refractor

    Astro-Tech
    In Stock

    The AT130EDT is one of the more capable imaging refractors in our lineup — 130mm of FK-61 triplet glass at 910mm f/7, sharp enough to resolve detai...

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    $199.95 - $199.95
    $199.95
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    $199.95
  • A black Astro-Tech 2" 0.8x reducer/field flattener for the Astro-Tech AT80ED refractor telescope.
    $89.95 - $89.95
    $89.95
    $89.95 - $89.95
    $89.95

    Astro-Tech Dedicated 0.8x Reducer/ Field Flattener for the Astro-Tech AT80ED

    Astro-Tech
    In Stock

    The AT80ED is a sharp, portable 80mm ED doublet that punches above its weight visually. But when you point a camera at it, f/7 starts to show its h...

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    $89.95 - $89.95
    $89.95
    $89.95 - $89.95
    $89.95
  • Astro-Tech AT130EDX 130mm triplet APO refractor with FCD100 and lanthanum
    Save $696.00 Save $0.00
    $3,695.00
    $3,695.00 - $3,695.00
    $3,695.00
    $2,999.00
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    $2,999.00

    Astro-Tech AT130EDX f/7 FCD100 ED Triplet APO

    Astro-Tech
    In Stock

    There are scopes you buy because they're good for the price. And there are scopes you buy because they're good. The AT130EDX is the latter. One hun...

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    $3,695.00
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    $3,695.00
    $2,999.00
    $2,999.00 - $2,999.00
    $2,999.00
    Save $696.00 Save $0.00
  • Astro-Tech AT130EDTFFv3 field flattener for 130mm triplet refractors
    $299.95 - $299.95
    $299.95
    $299.95 - $299.95
    $299.95

    Astro-Tech V3 1X Field Flattener For Astro-Tech AT130 Triplet APO Refractor with 3.2" Focuser

    Astro-Tech
    In Stock

    Astro-Tech AT130EDTFFv3 1× Field Flattener Sometimes you don't want to speed up your system. You want to sharpen it. The AT130EDT is a 910mm f/7 tr...

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    $299.95
  • $42.95 - $42.95
    $42.95
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    $42.95

    Astro-Tech 9" Vixen Universal Dovetail Plate

    Astro-Tech
    In Stock

    The Astro-Tech 9" vixen plate is precision-machined from 5/8-inch aluminum stock and hard-anodized black. It measures 232mm (just over 9 inches) lo...

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    $42.95 - $42.95
    $42.95
    $42.95 - $42.95
    $42.95
  • $229.95 - $229.95
    $229.95
    $229.95 - $229.95
    $229.95

    Astro-Tech 0.8X Reducer/Field Flattener For Astro-Tech AT115EDT Triplet APO Refractor Version II

    Astro-Tech
    In Stock

    You've got 115mm of ED triplet glass pointed at the sky. The AT115EDT's optics deliver clean color correction — three FK-61 elements working togeth...

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    $229.95 - $229.95
    $229.95
    $229.95 - $229.95
    $229.95
  • Astro-Tech AT130EDTRFv3 reducer flattener for AT130EDT and AT130EDX triplets
    $299.95 - $299.95
    $299.95
    $299.95 - $299.95
    $299.95

    Astro-Tech V3 0.8x Reducer/Field Flattener For Astro-Tech AT130EDT or AT130EDX Triplet APO Refractor with 3.2" Focuser

    Astro-Tech
    In Stock

    Astro-Tech AT130EDTRFv3 0.8× Reducer/Field Flattener A triplet apochromat like the AT130EDT does one thing very well: it controls color. Three elem...

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    $299.95 - $299.95
    $299.95
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    $299.95
  • Save $396.00 Save $0.00
    $2,195.00
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    $2,195.00
    $1,799.00
    $1,799.00 - $1,799.00
    $1,799.00

    Sky-Watcher Wave 100i Strainwave Mount Kit w/ Steel Tripod

    Sky-Watcher
    In Stock

    The carbon fiber version of this kit prioritizes minimum weight. This steel tripod version prioritizes stability and working height. The Wave 100i ...

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    $2,195.00
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    $2,195.00
    $1,799.00
    $1,799.00 - $1,799.00
    $1,799.00
    Save $396.00 Save $0.00
  • Astro-Tech AT90EDX side view
    Astro-Tech AT90EDX 3 quarter view
    Save $175.00 Save $0.00
    $1,749.00
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    $1,749.00
    $1,574.00
    $1,574.00 - $1,574.00
    $1,574.00

    Astro-Tech AT90EDX f/6 Triplet APO Refractor OTA

    Astro-Tech
    In Stock

    The first thing you notice about the AT90EDX is how quiet the view is. No color fringing on bright limbs. No softening at the edge. Just the object...

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    $1,749.00
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    $1,749.00
    $1,574.00
    $1,574.00 - $1,574.00
    $1,574.00
    Save $175.00 Save $0.00
  • $899.00 - $899.00
    $899.00
    $899.00 - $899.00
    $899.00

    Astro-Tech AT66EDQ f/7 ED Quadruplet Apochromatic Refractor OTA

    Astro-Tech
    More on the way

    Astro-Tech AT66EDQ f/7 ED Quadruplet Apochromatic Refractor Wide-field astrophotography has one persistent problem: flat fields are hard. Most refr...

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    $899.00 - $899.00
    $899.00
    $899.00 - $899.00
    $899.00
  • Celestron M42 Spacer Ring Kit components
    $47.95 - $47.95
    $47.95
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    $47.95

    Celestron M42 Spacer Ring Kit 93618

    Celestron
    In Stock

    Celestron M42 Spacer Ring Kit (#93618) Achieve precision back-focus for sharper astroimages—especially at the corners. In astrophotography, a milli...

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    $47.95
    $47.95 - $47.95
    $47.95
  • $500.00 - $500.00
    $500.00
    $500.00 - $500.00
    $500.00

    Sky-Watcher Evostar 150DX .77x Reducer Field Flattener

    Sky-Watcher
    In Stock

    Sky-Watcher EvoStar 150DX 0.77x Reducer/Field Flattener – Faster Imaging, Flatter Fields, and Expanded Potential for Your Refractor If you're imagi...

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    $500.00 - $500.00
    $500.00
    $500.00 - $500.00
    $500.00
  • $199.95 - $199.95
    $199.95
    $199.95 - $199.95
    $199.95

    Astro-Tech 1X Field Flattener For Astro-Tech AT80EDT Triplet APO Refractor

    Astro-Tech
    In Stock

    The AT80EDT is one of our most popular grab-and-go imaging refractors — 80mm of FK-61 triplet glass at 480mm f/6, compact enough for airline travel...

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    $199.95 - $199.95
    $199.95
    $199.95 - $199.95
    $199.95
  • $1,999.00 - $1,999.00
    $1,999.00
    $1,999.00 - $1,999.00
    $1,999.00

    Astro-Tech AT106EDQ f/7 Quad Refractor

    Astro-Tech
    More on the way

    You buy a refractor for imaging, and the first thing you learn is that you need a field flattener. Then you learn that the flattener has to match y...

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    $1,999.00 - $1,999.00
    $1,999.00
    $1,999.00 - $1,999.00
    $1,999.00
  • $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00

    Sky Rover 18mm 65° Ultra Flat Field Eyepiece

    Sky Rover
    More on the way

    The telescope's job is to gather light and converge it. The eyepiece's job is to put it where you can see it without the field falling apart. At 18...

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    $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00
  • $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00

    Sky Rover 15mm 65° Ultra Flat Field Eyepiece

    Sky Rover
    More on the way

    The 15mm focal length is where observing divides into two worlds: low enough to give you genuine context and field of view, high enough to show rea...

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    $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00
  • $2,699.00 - $2,699.00
    $2,699.00
    $2,699.00 - $2,699.00
    $2,699.00

    Astro-Tech AT126EDQ f/7 Quad Refractor

    Astro-Tech
    More on the way

    Most refractors need a separate field flattener to image properly. You buy the scope, then you buy the flattener, then you figure out the spacing, ...

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    $2,699.00 - $2,699.00
    $2,699.00
    $2,699.00 - $2,699.00
    $2,699.00
  • $1,399.00 - $1,399.00
    $1,399.00
    $1,399.00 - $1,399.00
    $1,399.00

    Astro-Tech AT86EDQ f/7 Quad Refractor

    Astro-Tech
    In Stock

    Alan Dyer reviewed the AT86EDQ for Sky & Telescope (July 2025) and called it one of his picks for a desert-island telescope — the one scope he'...

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    $1,399.00 - $1,399.00
    $1,399.00
    $1,399.00 - $1,399.00
    $1,399.00
  • Sky Rover UF 30 mm Ultra Flat Field Eyepiece – 70° apparent field, flat-field optics, 2-inch barrel with accessory thread
    Sky Rover UF 30 mm Ultra Flat Field Eyepiece – 70° apparent field, flat-field optics, 2-inch barrel with accessory thread
    $219.00 - $219.00
    $219.00
    $219.00 - $219.00
    $219.00

    Sky Rover UF 30 mm Ultra Flat Field Eyepiece – 70° Wide Field, 2-inch Barrel

    Sky Rover
    More on the way

    There's a moment in observing when the night sky becomes less a series of targets and more a connected whole. A globular cluster glows in the field...

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    $219.00 - $219.00
    $219.00
    $219.00 - $219.00
    $219.00
  • Sky Watcher HeliosStar 100 Hydrogen Alpha Solar Scope
    Sky Watcher HeliosStar 100 Hydrogen Alpha Solar Scope
    $5,995.00 - $5,995.00
    $5,995.00
    $5,995.00 - $5,995.00
    $5,995.00

    Sky-Watcher Heliostar 100 H-Alpha Solar Telescope

    Sky-Watcher
    More on the way

    Most solar telescopes show the Sun in white light: the photosphere, sunspots, and granulation. Useful, but limited. A hydrogen-alpha telescope reve...

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    $5,995.00 - $5,995.00
    $5,995.00
    $5,995.00 - $5,995.00
    $5,995.00
  • Save $396.00 Save $0.00
    $2,395.00
    $2,395.00 - $2,395.00
    $2,395.00
    $1,999.00
    $1,999.00 - $1,999.00
    $1,999.00

    Sky-Watcher Wave 100i Strainwave Mount Kit w/ CF Tripod

    Sky-Watcher
    In Stock

    The hardest part of astrophotography has always been the mount. You can own a beautiful refractor, the latest cooled CMOS camera, and filters that ...

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    $2,395.00
    $2,395.00 - $2,395.00
    $2,395.00
    $1,999.00
    $1,999.00 - $1,999.00
    $1,999.00
    Save $396.00 Save $0.00
  • $229.95 - $229.95
    $229.95
    $229.95 - $229.95
    $229.95

    Astro-Tech 0.8X Reducer For Astro-Tech EDQ Series 86/106/126

    Astro-Tech
    In Stock

    The EDQ series scopes are designed with imaging in mind. The quad-element optical system builds field correction right into the telescope — no sepa...

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    $229.95 - $229.95
    $229.95
    $229.95 - $229.95
    $229.95
  • A black Astro-Tech 0.8x reducer/field flattener for the AT102ED refractor telescope, with caps on both ends, displayed against a white background.
    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Astro-Tech Dedicated 0.8x Reducer/Field Flattener for the Astro-Tech AT102ED Refractor

    Astro-Tech
    In Stock

    The AT102ED is one of the better values in 4-inch refractors — 102mm of ED glass at f/7, sharp enough for serious visual work and big enough to pul...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • $229.95 - $229.95
    $229.95
    $229.95 - $229.95
    $229.95

    Astro-Tech 0.8X Reducer/Field Flattener For Astro-Tech AT130EDT Triplet APO Refractor Version II

    Astro-Tech
    In Stock

    You've got 130mm of ED triplet glass pointed at the sky. The AT130EDT's optics deliver clean color correction — three FK-61 elements working togeth...

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    $229.95 - $229.95
    $229.95
    $229.95 - $229.95
    $229.95

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