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Optec DSI 3.5x24tpi male thread adapter to M54 x 0.75mm camera thread Outside Diameter:  3.82" (97.0mm) Overall Height: 0.62" (15.7mm) Clear Apert...

Tripod & Eyepiece Bubble Levels Don't have a level on your mount that you can quickly see to setup your tripod/mount?  No problem with these si...

Starfield 2" Herschel Wedge for Solar Observation The Starfield Optics 2" Herschel solar wedge transforms how you can observe the sun's surface inc...

 Celestron Microscope Calibration Slide Precise stage micrometer glass slide for calibrating your microscope's camera or imager 1mm ruler with 10...

Hotech Astro Aimer G3 FeatureWater Resistant for all Weather ConditionNow you can take your Astro Aimer to anywhere, including the dewiest of sta...

Optec ThirdLynx QuickSync TKX QuickSync TKX motor with integrated ThirdLynx controller for Takahashi dual-speed MEF focuser. Compatibility: Takaha...

Buckeye Duncan Mask for SCT Collimation A Duncan Mask can be used to easily and quickly collimate your SCT. Instructions are provided below.    The...

Optec ThirdLynx QuickSync FTX30 Motor for Feathertouch Focuser Optec's QuickSync FTX30 motor features our new ThirdLynx control circuit. FTX30 fits...

Farpoint V Series Quick Mount Adapter Farpoint Vixen Quick Mount Adapter provides a quick release mount for dovetail bar telescope accessories.The ...

Optec Lepus SCT Lepus-SCT 0.62X telecompressor lens designed especially for use with the Celestron or Meade Schmidt-Cassegrain Telescopes. Featurin...

Player One Apollo-M USB3.0 Mono Camera IMX174 Focus on Solar imaging! Apollo series is the world’s first camera line designed specifically for sola...

Starizona Hyperstar Camera Adapter Please Specify your camera model when you place your order Accurate backfocus distance necessitates an adapter t...

Pentax SMC XW16.5 85° 2" Eyepiece The Pentax XW16.5 70° has a 85° Apparent Angle of View, 20mm Eye Relief, plus Weatherproof Body for Multi-Applic...

Pentax SMC XW10 70° Eyepiece The Pentax SMC XW10 70° has a 70° Apparent Angle of View, 20mm Eye Relief, plus Weatherproof Body for Multi-Applicati...

Shelyak Alpy 600 The Alpy 600 and Demetra software (developed by Shelyak Instrument for the ALPY 600 spectrograph) will allow you to produce spectr...

Pentax SMC XW3.5 70° Eyepiece The Pentax XW3.5 70° has a 70° Apparent Angle of View, 20mm Eye Relief, plus Weatherproof Body for Multi-Application...

PlaneWave .66x Reducer for CDK12.5 / CDK14 / CDK17 This is a reducer designed specifically for flat field telescopes like the CDK. This reduces the...

Pegasus Mounting APLATE Accessories Plate can be mounted on top of your telescope and accept a wide range of devices such as one of o...

Celestron AstroMaster/PowerSeeker Motor Drive Add right ascension (RA) tracking capabilities to any Celestron AstroMaster or PowerSeeker equatorial...

Antlia Imaging Herschel Wedge with 35mm Prism and 1.25'' Cak 3nm Solar Filter The Antlia Solar Wedge (Herschel Wedge design) replaces the standard ...

Walter Microscope Discovery Kit This slide making kit is a great way for children to learn about the wonders of microscopy. It has all the tools ne...

Celestron 2" UHC/LPR Filter Our 2" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengt...

Celestron 1.25” Dielectric Star Diagonal with Twist-Lock Ensure maximum light transmission without loss of optical quality with the Celestron Diele...

Celestron 1.25" UHC/LPR Filter Our 1-1/4" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wa...

Celestron 1.25" Oxygen III Narrowband Filter The 1.25" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm line...

Baader Wide-T-Ring Sony E/NEX Bayonet with D52i/M48 to T-2 and S52 The Sony Alpha 7 cameras – especially the 7S and 7SII – are very interesting fo...

Baader VariLock 29, lockable T-2 ExtensionTube 20-29mm with spanner tool Lockable T-2 extension tube, adjustable 20-29 mm with clamping Telescope...

Baader UBVRI Bessel U-Filter - Photometric Baader Bessel-UBVRI Bandpass Filter Set, suitable from f/15 to f/1.8 Classic photometric filters with t...