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All-Star Telescope is your source for all things astro from telescopes to astrophotography cameras. Have a question? We'd love to help. Email: info@all-startelescope.com Call Us: (587) 336-6621 Toll Free: 1 (866) 310-8844
Have a question? We'd love to help. Email: info@all-startelescope.com Call Us: (587) 336-6621 Toll Free: 1 (866) 310-8844

Reducers and Flateners

  • Sharpstar 94Edph Reducer (94EDPHFR)
    Sharpstar 94Edph Reducer (94EDPHFR)
    Original price $399.95 - Original price $399.95
    Original price
    $399.95
    $399.95 - $399.95
    Current price $399.95

    Sharpstar 94Edph Reducer (94EDPHFR)

    SharpStar

    The 2.5" 94EDPH f/4.4 full-frame reducer is dedicated for Sharpstar 94EDPH astrograph. At one end of the reducer, there is M74×1 thread, tapped for...

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    Original price $399.95 - Original price $399.95
    Original price
    $399.95
    $399.95 - $399.95
    Current price $399.95
  • Sharpstar 76EDPH Reducer (76EDPH SR)
    Sharpstar 76EDPH Reducer (76EDPH SR)
    Original price $304.95 - Original price $304.95
    Original price
    $304.95
    $304.95 - $304.95
    Current price $304.95

    Sharpstar F4.5 Reducer for 76EDPH/94EDPH (76EDPH SR)

    SharpStar

    The 2.5" 76EDPH f/4.5 full-frame reducer is dedicated for Sharpstar 76EDPH astrograph. At one end of the reducer, there is M74×1 thread, tapped for...

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    Original price $304.95 - Original price $304.95
    Original price
    $304.95
    $304.95 - $304.95
    Current price $304.95
  • Sharpstar 61Edph Reducer (61EDPHR45)
    Sharpstar 61Edph Reducer (61EDPHR45)
    Original price $249.95 - Original price $249.95
    Original price
    $249.95
    $249.95 - $249.95
    Current price $249.95

    Sharpstar 61Edph Reducer (61EDPHR45)

    SharpStar

    The 2.3" 61EDPH f/4.5 full-frame reducer is dedicated for Sharpstar 61EDPH and 61EDPH II astrographs. At one end of the reducer, there is M63×1 thr...

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    Original price $249.95 - Original price $249.95
    Original price
    $249.95
    $249.95 - $249.95
    Current price $249.95
  • Celestron Reducer Lens .7x For EdgeHD 800 (94242)
    Celestron Reducer Lens .7x For EdgeHD 800 (94242)
    Original price $510.00 - Original price $510.00
    Original price
    $510.00
    $510.00 - $510.00
    Current price $510.00

    Celestron Reducer Lens .7x For EdgeHD 800 (94242)

    Celestron

    Celestron’s EdgeHD reducers features a custom 4-element optical design engineered to maintain the flat-field performance of our award-winning EdgeH...

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    Original price $510.00 - Original price $510.00
    Original price
    $510.00
    $510.00 - $510.00
    Current price $510.00
  • Celestron f/6.3 Reducer Corrector (94175)
    Celestron f/6.3 Reducer Corrector (94175)
    Original price $247.95 - Original price $247.95
    Original price
    $247.95
    $247.95 - $247.95
    Current price $247.95

    Celestron f/6.3 Reducer Corrector (94175)

    Celestron

    Imagine having two telescopes in one — a long focal length instrument for lunar and planetary work and a short focal length scope for deep sky obse...

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    Original price $247.95 - Original price $247.95
    Original price
    $247.95
    $247.95 - $247.95
    Current price $247.95
  • Original price $319.95 - Original price $319.95
    Original price
    $319.95
    $319.95 - $319.95
    Current price $319.95

    Askar F3.9 reducer for FRA400/5.6 (RFRA39)

    SharpStar

    The new Askar FRA400 F3.9 full-frame reducer the telescope’s effective focal ratio by a factor of 0.7x, thus an original f/5.6 becomes an f/3.9 sys...

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    Original price $319.95 - Original price $319.95
    Original price
    $319.95
    $319.95 - $319.95
    Current price $319.95
  • Celestron  Reducer Lens .7x for EdgeHD 1100 (94241)
    Celestron  Reducer Lens .7x for EdgeHD 1100 (94241)
    Original price $1,050.00 - Original price $1,050.00
    Original price
    $1,050.00
    $1,050.00 - $1,050.00
    Current price $1,050.00

    Celestron Reducer Lens .7x for EdgeHD 1100 (94241)

    Celestron

    Celestron’s EdgeHD reducers feature a custom 5 element optical design engineered to maintain the flat-field performance of our award-winning EdgeHD...

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    Original price $1,050.00 - Original price $1,050.00
    Original price
    $1,050.00
    $1,050.00 - $1,050.00
    Current price $1,050.00
  • Celestron Reducer Lens .7x for EdgeHD 925 (94245)
    Celestron Reducer Lens .7x for EdgeHD 925 (94245)
    Original price $540.00 - Original price $540.00
    Original price
    $540.00
    $540.00 - $540.00
    Current price $540.00

    Celestron Reducer Lens .7x for EdgeHD 925 (94245)

    Celestron

    Celestron’s EdgeHD reducers feature a custom 4-element optical design engineered to maintain the flat-field performance of our award-winning EdgeHD...

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    Original price $540.00 - Original price $540.00
    Original price
    $540.00
    $540.00 - $540.00
    Current price $540.00
  • Sold out
    Original price $630.00 - Original price $630.00
    Original price
    $630.00
    $630.00 - $630.00
    Current price $630.00

    Sky-Watcher Esprit 150ED Reducer/Flattener (.77x) (S20215)

    Sky-Watcher

    Specifications Overview 36mm fully illuminated field, compatible with both APS-C and full frame sensors 90mm back-focus (55mm when back focus spac...

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    Original price $630.00 - Original price $630.00
    Original price
    $630.00
    $630.00 - $630.00
    Current price $630.00
    Sold out
  • Sold out
    Original price $630.00 - Original price $630.00
    Original price
    $630.00
    $630.00 - $630.00
    Current price $630.00

    Sky-Watcher Esprit 120ED Reducer/Flattener (.77x) (S20209)

    Sky-Watcher

    Specifications Overview 34mm fully illuminated field but can handle full frame as well 95mm back-focus (55mm when back focus spacer and M48 ring i...

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    Original price $630.00 - Original price $630.00
    Original price
    $630.00
    $630.00 - $630.00
    Current price $630.00
    Sold out
  • Sold out
    Original price $630.00 - Original price $630.00
    Original price
    $630.00
    $630.00 - $630.00
    Current price $630.00

    Sky-Watcher Evostar 150DX Reducer/Flattener (.77x) (S20208)

    Sky-Watcher

    Specifications Overview 34mm fully illuminated field, compatible with both APS-C and full frame sensors 89mm back-focus (55mm when back focus spac...

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    Original price $630.00 - Original price $630.00
    Original price
    $630.00
    $630.00 - $630.00
    Current price $630.00
    Sold out
  • Sold out
    Original price $480.00 - Original price $480.00
    Original price
    $480.00
    $480.00 - $480.00
    Current price $480.00

    Sky-Watcher Evolux 82ED Reducer/Flattener (0.9x) (S20207)

    Sky-Watcher

    0.9x thread-on reducer/corrector produces a flat field across the entire image while shortening exposure time by 24%. Optimized for Evolux 82mm ref...

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    Original price $480.00 - Original price $480.00
    Original price
    $480.00
    $480.00 - $480.00
    Current price $480.00
    Sold out
  • Sold out
    Original price $470.00 - Original price $470.00
    Original price
    $470.00
    $470.00 - $470.00
    Current price $470.00

    Sky-Watcher Evolux 62ED Reducer/Flattener (0.9x) (S20206)

    Sky-Watcher

    0.9x thread-on reducer/corrector produces a flat field across the entire image while shortening exposure time by 24%. Optimized for Evolux 62mm ref...

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    Original price $470.00 - Original price $470.00
    Original price
    $470.00
    $470.00 - $470.00
    Current price $470.00
    Sold out
  • Sold out
    Original price $490.00 - Original price $490.00
    Original price
    $490.00
    $490.00 - $490.00
    Current price $490.00

    Sky-Watcher Evostar 120 Reducer/Flattener (.85x) (S20202)

    Sky-Watcher

    0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 120 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 120 E...

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    Original price $490.00 - Original price $490.00
    Original price
    $490.00
    $490.00 - $490.00
    Current price $490.00
    Sold out
  • Sold out
    Original price $480.00 - Original price $480.00
    Original price
    $480.00
    $480.00 - $480.00
    Current price $480.00

    Sky-Watcher Evostar 100 Reducer/Flattener (.85x) (S20201)

    Sky-Watcher

    0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 100 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 100 E...

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    Original price $480.00 - Original price $480.00
    Original price
    $480.00
    $480.00 - $480.00
    Current price $480.00
    Sold out
  • Sky-Watcher 0.85x Reducer/Flattener For Evostar 80ED (S20200)
    Sold out
    Original price $460.00 - Original price $460.00
    Original price
    $460.00
    $460.00 - $460.00
    Current price $460.00

    Sky-Watcher Evostar 80 Reducer/Flattener (.85x) (S20200)

    Sky-Watcher

    0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 80 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 80 ED ...

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    Original price $460.00 - Original price $460.00
    Original price
    $460.00
    $460.00 - $460.00
    Current price $460.00
    Sold out
  • Tele Vue Reducer Adapter For TV-102 (RAD-1074)
    Original price $79.95 - Original price $79.95
    Original price
    $79.95
    $79.95 - $79.95
    Current price $79.95

    Tele Vue Reducer Adapter For TV-102 (RAD-1074)

    Tele Vue Optics

    Reducer adapter allows TeleVue Imaging System reducers to be used on standard 2" focusers. This adapter slides into any 2" focuser and provides an ...

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    Original price $79.95 - Original price $79.95
    Original price
    $79.95
    $79.95 - $79.95
    Current price $79.95
  • Tele Vue 0.8X Reducer/Flattener (TRF-2008)
    Original price $459.00 - Original price $459.00
    Original price
    $459.00
    $459.00 - $459.00
    Current price $459.00

    Tele Vue 0.8X Reducer/Flattener (TRF-2008)

    Tele Vue Optics

    The TeleVue 0.8x Focal Reducer/Flattener for TeleVue 85/Pronto is an accessory lens which converts TV-85 to 480 mm f/5.6, and the Pronto to 380 mm ...

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    Original price $459.00 - Original price $459.00
    Original price
    $459.00
    $459.00 - $459.00
    Current price $459.00
  • Sky-Watcher 0.85x Reducer/Flattener For Evostar 72ED (S20212)
    Sold out
    Original price $520.00 - Original price $520.00
    Original price
    $520.00
    $520.00 - $520.00
    Current price $520.00

    Sky-Watcher Evostar 72ED Reducer/Flattener (.85x) (S20212)

    Sky-Watcher

    Specifications Overview Compatible with both APS-C and full frame sensors, APS-C (crop sensors) and smaller recommended. 55mm back focus Drops f/...

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    Original price $520.00 - Original price $520.00
    Original price
    $520.00
    $520.00 - $520.00
    Current price $520.00
    Sold out
  • Sharpstar 140PH Reducer (140PH SR)
    Sharpstar 140PH Reducer (140PH SR)
    Original price $579.95 - Original price $579.95
    Original price
    $579.95
    $579.95 - $579.95
    Current price $579.95

    Sharpstar 140PH Reducer (140PH SR)

    SharpStar

    The new 3" full-frame reducer for 140PH APO is equipped with a solid body made of quality metal. It can effectively shorten the original f/6.5 foca...

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    Original price $579.95 - Original price $579.95
    Original price
    $579.95
    $579.95 - $579.95
    Current price $579.95
  • Antares Focal Reducer/Corrector 6.3 (SCTFR)
    Original price $119.95 - Original price $119.95
    Original price
    $119.95
    $119.95 - $119.95
    Current price $119.95

    Antares Focal Reducer/Corrector 6.3 (SCTFR)

    Sky Instruments

    The Antares SCTFR is the standard thread-on F/6.3 4-element fully multicoated reducer/corrector used on F/10 Schmidt-Cassegrain telescopes. It is a...

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    Original price $119.95 - Original price $119.95
    Original price
    $119.95
    $119.95 - $119.95
    Current price $119.95