Showing 1873–1924 of 2533 results

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Solar Accessories

Quark to C & T adapter bundle DayStar

Original price was: $ 69,00.Current price is: $ 34,50.
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Solar Accessories

Quark to C adapter DayStar

Original price was: $ 59,00.Current price is: $ 29,50.
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Solar Accessories

Quark to T adapter DayStar

Original price was: $ 59,00.Current price is: $ 29,50.
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Solar Accessories

Quark USB Power Extension Cable DayStar

Original price was: $ 18,00.Current price is: $ 10,80.
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Solar Filters

QUARK* Hydrogen Alpha “Eyepiece” DayStar

Original price was: $ 1.295,00.Current price is: $ 323,75.
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Astrophotography Accessories

Quattro Coma Corrector (20204) Sky-Watcher USA

Original price was: $ 440,00.Current price is: $ 132,00.
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Observing Aids

Questar Adapter Tele Vue

Original price was: $ 86,00.Current price is: $ 43,00.
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Solar Filters

QUESTAR QUARK* Hydrogen Alpha “Eyepiece” DayStar

Original price was: $ 1.295,00.Current price is: $ 323,75.
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Plates and Rings

Quick-release bracket to fit Tele Vue Ring Mounts (QRB-1002) Tele Vue

Original price was: $ 47,00.Current price is: $ 28,20.
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Plates and Rings

Quick-Release Finder Mount (QFM-1008) Tele Vue

Original price was: $ 143,00.Current price is: $ 57,20.
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Finders

Qwik Point Finder Tele Vue

Original price was: $ 28,00.Current price is: $ 16,80.
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Filters

R-Bessell Filter Chroma

Original price was: $ 275,00.Current price is: $ 110,00.
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Mount Accessories

R.A. and Dec. Absolute Encoder and Readhead System Astro-Physics

Original price was: $ 5.890,00.Current price is: $ 1.472,50.
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Mount Accessories

R.A. Sight Hole Cover – for 1200/400 mounts and 900 mounts shipped prior to Oct. 2005 (M12666) Astro-Physics

Original price was: $ 40,00.Current price is: $ 24,00.
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Mount Accessories

R.A. Sight Hole Cover – for 900GTO mounts shipped since October 2005 (M9403) Astro-Physics

Original price was: $ 46,00.Current price is: $ 27,60.
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Focusing

R30-2.25 – Starlight Instruments 3.0″ Diameter Riser Starlight Instruments

Original price was: $ 160,00.Current price is: $ 64,00.
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Focusing

Rack & Pinion 2″ Focuser Extension Tubes Explore Scientific

Original price was: $ 29,99.Current price is: $ 17,99.
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Plates and Rings

RASA 8 Dovetail Accessory Bar (94290) Celestron

Original price was: $ 67,95.Current price is: $ 33,98.
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Observing Aids

RASA8 Visual Adapter Cloud Break Optics

Original price was: $ 420,00.Current price is: $ 126,00.
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Astrophotography Accessories

RCOS 4.75″x24tpi thread to OPTEC-3600 Dovetail Mount (17823) Optec

Original price was: $ 100,00.Current price is: $ 50,00.
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Astrophotography Accessories

RD-EXT M-300 (TKA83205) Takahashi

Original price was: $ 126,00.Current price is: $ 50,40.
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Observing Aids

Red and White LED Headlamp Meade

Original price was: $ 24,99.Current price is: $ 14,99.
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Filters

Red Continuum 5 nm Filter Astrodon

Original price was: $ 459,80.Current price is: $ 137,94.
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Finders

Red Dot Finder – No Base (F001) Stellarvue

Original price was: $ 24,00.Current price is: $ 14,40.
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Plates and Rings

Red Dot Finder Base for Hinged Rings (F001EF) Stellarvue

Original price was: $ 12,00.Current price is: $ 7,20.
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Plates and Rings

Red Dot Finder Base for SV or TV Clamshell (F001CT) Stellarvue

Original price was: $ 9,00.Current price is: $ 5,40.
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Plates and Rings

Red Dot Finder Curved Base with Double Stick Tape (F001B) Stellarvue

Original price was: $ 6,00.Current price is: $ 3,60.
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Finders

Red Dot Finder Kit with Vixen Style Mounting Base William Optics

Original price was: $ 85,00.Current price is: $ 42,50.
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Filters

Red Filter Chroma

Original price was: $ 150,00.Current price is: $ 60,00.
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Observing Aids

Red Gel Filter for Monitor Cloud Break Optics

Original price was: $ 29,95.Current price is: $ 17,97.
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Refractor Telescope

RedCat 51mm II f/4.9 APO Ix William Optics

Original price was: $ 865,00.Current price is: $ 216,25.
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Refractor Telescope

RedCat 51mm II-U f/4.9 APO Ix William Optics

Original price was: $ 865,00.Current price is: $ 216,25.
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Refractor Telescope

RedCat 51mm WIFD II f/4.9 APO Ix William Optics

Original price was: $ 898,00.Current price is: $ 224,50.
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Refractor Telescope

RedCat 61 WIFD APO 300mm f/4.9 William Optics

Original price was: $ 1.498,00.Current price is: $ 374,50.
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Refractor Telescope

RedCat 71mm WIFD f/4.9 William Optics

Original price was: $ 1.798,00.Current price is: $ 449,50.
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Astrophotography Accessories

Reducer 0.66x CDK12.5 /14/ 17 Planewave

Original price was: $ 1.400,00.Current price is: $ 350,00.
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Astrophotography Accessories

Reducer and Field Flattener for Mewlon Telescopes (TAK70581) Takahashi

Original price was: $ 530,00.Current price is: $ 159,00.
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Astrophotography Accessories

Reducer Flattener for 3″ focuser (SFFR.72-130-3FT) Stellarvue

Original price was: $ 649,00.Current price is: $ 194,70.
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Astrophotography Accessories

Reducer Flattener for SV70T (SFFR-70APO) Stellarvue

Original price was: $ 269,00.Current price is: $ 107,60.
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Astrophotography Accessories

Reducer Lens .7X – EdgeHD 1100 (94241) Celestron

Original price was: $ 839,00.Current price is: $ 209,75.
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Astrophotography Accessories

Reducer Lens .7X – EdgeHD 1400 (94240) Celestron

Original price was: $ 839,00.Current price is: $ 209,75.
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Astrophotography Accessories

Reducer Lens .7X – EdgeHD 800 (94242) Celestron

Original price was: $ 409,00.Current price is: $ 122,70.
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Astrophotography Accessories

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

Original price was: $ 429,00.Current price is: $ 128,70.
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Astrophotography Accessories

Reducer/Corrector (.85x) for Evostar 100 (S20201) Sky-Watcher USA

Original price was: $ 380,00.Current price is: $ 114,00.
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Astrophotography Accessories

Reducer/Corrector (.85x) for Evostar 120 (S20202) Sky-Watcher USA

Original price was: $ 395,00.Current price is: $ 118,50.
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Astrophotography Accessories

Reducer/Corrector (.85x) for Evostar 72ED (S20212) Sky-Watcher USA

Original price was: $ 415,00.Current price is: $ 124,50.
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Astrophotography Accessories

Reducer/Flattener for 2.5″ focuser (SFFR.72-130-25) Stellarvue

Original price was: $ 695,00.Current price is: $ 208,50.
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Astrophotography Accessories

Reducer/Flattener for 400-600mm Refractors (TV-85) Tele Vue

Original price was: $ 353,00.Current price is: $ 105,90.
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Astrophotography Accessories

Reducer/Flattener for 800-1000mm Refractors (TV-102 & TV-102iis) Tele Vue

Original price was: $ 390,00.Current price is: $ 117,00.
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Astrophotography Accessories

Reducer/Flattener for f/7 Refractors with 2″ Focuser (SFFR102-2) Stellarvue

Original price was: $ 229,00.Current price is: $ 91,60.
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Astrophotography Accessories

Reducer/Flattener for SV115T with 2.5″ Focuser (SFFR115-25) Stellarvue

Original price was: $ 229,00.Current price is: $ 91,60.
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Astrophotography Accessories

Reducer/Flattener for SV115T with 2″ Focuser (SFFR115-2) Stellarvue

Original price was: $ 195,00.Current price is: $ 78,00.