Showing 313–364 of 2533 results

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Mount Accessories

22.0″ x 1.875″ Diameter Counterweight Shaft (M12601-E) Astro-Physics

Original price was: $ 149,00.Current price is: $ 59,60.
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Plates and Rings

23″ P-Style Dovetail Plate (SBPW23) Astro-Physics

Original price was: $ 377,00.Current price is: $ 113,10.
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Plates and Rings

232WM Double Ring Tube Holder for Epsilon-180ED Telescopes (TKA68420M) Takahashi

Original price was: $ 760,00.Current price is: $ 228,00.
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Plates and Rings

24″ Ribbed Plate (1200RP) Astro-Physics

Original price was: $ 315,00.Current price is: $ 94,50.
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Mount Accessories

24″ Servo Extension Cable for GTOCP2, GTOCP3 or GTOCP4 (CABGTO24) Astro-Physics

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

243mm Saddle Handle Bar (Patented) (M-HC243BL) William Optics

Original price was: $ 90,00.Current price is: $ 45,00.
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Finders

243mm Saddle Handle Bar (Patented) with All New 50mm Guiding Rings (M-HC243BL-GR50IISL) William Optics

Original price was: $ 154,00.Current price is: $ 61,60.
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Cameras

247C QHY

Original price was: $ 1.399,00.Current price is: $ 349,75.
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Power

25 Amp Variable Volt Power Supply (PSVPW25A) Astro-Physics

Original price was: $ 190,00.Current price is: $ 76,00.
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Astrophotography Accessories

25 Foot Standoff Cable Revolution

Original price was: $ 12,99.Current price is: $ 7,79.
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Eyepieces

25mm Abbe Eyepiece (1.25″) Takahashi

Original price was: $ 186,00.Current price is: $ 74,40.
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Astrophotography Accessories

25mm Spacer for FS-60C Reducers and Flatteners (TCD0025) Takahashi

Original price was: $ 152,00.Current price is: $ 60,80.
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Cameras

268C QHY

Original price was: $ 2.099,00.Current price is: $ 524,75.
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Cameras

268M QHY

Original price was: $ 2.399,00.Current price is: $ 599,75.
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Astrophotography Accessories

26mm T-Thread Extension Tube Starlight Xpress

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

280CW Tube Holder for Mewlon-250CRS Telescopes (TKA84420) Takahashi

Original price was: $ 970,00.Current price is: $ 242,50.
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Mount Accessories

2kg Counterweight for iEQ30, MT, ZEQ/CEM25 (3006-05) iOptron

Original price was: $ 45,00.Current price is: $ 27,00.
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Astrophotography Accessories

2mm Long 48mm Spacer Ring (SFE-M48-002) Stellarvue

Original price was: $ 14,00.Current price is: $ 8,40.
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Observing Aids

2x Barlow nosepiece for Binoviewer (E-BINO-B2) William Optics

Original price was: $ 44,00.Current price is: $ 26,40.
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Eyepieces

2X Shorty Barlow (EB002) Stellarvue

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

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

Original price was: $ 999,99.Current price is: $ 250,00.
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Mount Accessories

3-lb weight for Dovetail Weight System (FDW3) Farpoint

Original price was: $ 35,20.Current price is: $ 21,12.
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Astrophotography Accessories

3.5″ Adapter for 4″ Focuser (ADA435) Astro-Physics

Original price was: $ 169,00.Current price is: $ 67,60.
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Astrophotography Accessories

3.5″ Focuser to SBIG STL Camera Adapter (ADA35STL) Astro-Physics

Original price was: $ 109,00.Current price is: $ 43,60.
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Focusing

3.5″ Rotating Focuser with Feather Touch Micro 9:1 Dual-Speed (35FOCER-FT) Astro-Physics

Original price was: $ 1.802,00.Current price is: $ 450,50.
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Eyepieces

3.5mm smc XW Series Eyepiece (1.25″) Pentax

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

3″ Dovetail To Apogee Alta 8-point Mount (17830) Optec

Original price was: $ 125,00.Current price is: $ 50,00.
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Astrophotography Accessories

3″ Drawtube Adapter To 2″ – Precision Centering Collet Design (19825) Optec

Original price was: $ 145,00.Current price is: $ 58,00.
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Astrophotography Accessories

3″ Drawtube Adapter To 2″ Reducer Bushing With Compression Ring (17804) Optec

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

3″ Drawtube Adapter To 3″ Extender Tube For 3″ Instruments (17816) Optec

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

3″ Drawtube Adapter To AstroPhysics 2.7″ (AP2.7) Female Threaded Mount (17807) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To AstroPhysics 2.7″ Male Thread (17838) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To Celestron 3.25″ SCT Thread (17837) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To FLI CFW 3.005″ 24tpi Threaded Mount (17833) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To FLI PDF 3.75″ Thread Mount (17831) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To Meade 3.25″ SCT Thread (17836) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To OPTEC-2400 Male Dovetail Adapter (17805) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To OPTEC-3600 Male Dovetail Mount (17811) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To PlaneWave SecureFit CCD Spacer (17835) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To SBIG STL Camera Mount (17806) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To Starlight 4.1″x24tpi Male Thread Mount (17813) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Astrophotography Accessories

3″ Drawtube Adapter To Takahashi M72 72mm Female Thread (17834) Optec

Original price was: $ 95,00.Current price is: $ 47,50.
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Focusing

3″ ESATTO Robotic Microfocuser (PLLEST3) PrimaLuce

Original price was: $ 945,00.Current price is: $ 236,25.
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Astrophotography Accessories

3″ Field Flattener .7x Focal Reducer (FFFR507X-00) Explore Scientific

Original price was: $ 479,99.Current price is: $ 144,00.
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Astrophotography Accessories

3″ Flattener/0.8x Reducer (115mm and 130mm APO) Meade

Original price was: $ 349,00.Current price is: $ 104,70.
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Astrophotography Accessories

3″x24tpi Male Thread To 3″x24tpi Male Thread (19370 ) Optec

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

3″x24tpi Male Thread To OPTEC-3600 Dovetail Receiver (19373) Optec

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

3″x24tpi Male Thread To STL 2.156″x24tpi Thread Adapter (19372) Optec

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

3″x24tpi Male Thread To T-Thread Adapter (19371) Optec

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

300 Astronomical Objects: A Visual Reference to the Universe Firefly Books

Original price was: $ 29,95.Current price is: $ 17,97.
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Mount Accessories

30lb Counterweight for Paramount ME II Software Bisque

Original price was: $ 455,00.Current price is: $ 136,50.
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Solar Filters

30mm Blocking Filter (2″) Coronado

Original price was: $ 1.899,99.Current price is: $ 475,00.