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Pegasus Astro Indigo Off Axis Guider Our thin and solid design OAG can easily bond with our Indigo Filter Wheel. The OAG supports through holes (M2...

Buckeye Filter Masks for Filter Wheels These Filter Centering Masks will make it easy to center your filters in a filter wheel, and will block any ...

Player One IR685nm 1.25″ IR-Pass Filter S-series Player One S series filter using high quality optical glass substrate and multi-layer composite co...

Mars-C II USB3.0 Color Camera (IMX662) Design for planetary imaging and EAA! Now, a new member join in Mars series, its name is Mars-C II (IMX662) ...

Player One Apollo-M MAX USB3.0 Solar Mono Camera IMX432 Focus on Solar imaging! Apollo series is the world’s first camera line designed specificall...

Phoenix Filter Wheel 7x36mm Support model: Poseidon series cameras, Artemis series cameras. Body Threads: M48*0.75 on both sides Filter size: 36mm...

Starfield 1.0x Field Flattener The Starfield 1.0x Field Flattener enhances the imaging capabilities of refractors by eliminating field curvature in...

Pentax AD 8x25 WP Binoculars Full-size performance in a compact-sized body. All A Series binoculars offer you impeccable viewing quality in a com...

Celestron Canon M-Mount T-Ring A T-Ring is one of the first accessories you will need to take pictures through a telescope or spotting scope. If yo...

William Optics Longer Adjusting Adapter for FLAT68III, FLAT7A This adjustable adapter offers a convenient, efficient way to upgrade your WO diagona...

Pegasus Astro Small Factor Top Plate for PPBADV Top Aluminium Plate for Pocket Powerbox Advance allows the mounting of additional equipment (E.g A ...

Walter Plain Glass Microscope 72 Slides Standard microscope slides are 1" x 3" and are made from glass. They are approximately 1mm to 1.2mm thick. ...

Celestron AUX Port Splitter You can easily add a second auxiliary port to your Celestron mount with the Celestron AUX Port Splitter. This parallel ...

Celestron 2" Dielectric Star Diagonal with Twist-Lock Ensure maximum light transmission without loss of optical quality with the Celestron Dielectr...

Celestron 1.25" Variable Polarizing Filter When you want to selectively reduce the brightness of celestial objects for a customized view, the Varia...

Celestron 1.25" Star Diagonal The Celestron 1.25” Star Diagonal slides into the focuser (1.25”) of your refractor or catadioptric telescope and acc...

Bob's Knobs for SkyWatcher & Celestron Newtonian Primary Fits: SkyWatcher Newtonian telescopes with factory collimation screws.Primary collima...

Astrozap 8x50 Finder Scope Dew Heater The newly redesigned Astrozap 8x50 Finder Scope Dew Heaters are from the finest selection for an active dew f...

Baader Hyperion 5mm 68° Baader Hyperion Eyepiece 5mm Huge 68 degree wide angle field, tailored to the maximum Visual angle of the human eye Phanto...

Baader Diamond Steeltrack M48 Adapter BDS-Adapter with M48 outer thread to connect M48 parts Mounted instead of the standard clamp with the S58 do...

Baader CMOS-optimized L-RGB Filters New CMOS-optimized L-RGB filters from Baader Planetarium with Reflex-Blocker™ and Life-Coat™. Now with 47.4 mm ...

Antares Finderscope 50mm Correct Image - 60° AFOV The Antares FRE50WT features correct image right angle viewing with a helical focus wire-x ...

Antares Filter Neutral Density 25% Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhanci...

Antares W70 Serie 2 4mm 70°  W70 series eyepieces offer a wider field of view and more comfortable eye relief than Plossls. The 1.25" W70-4mm has (...

ZWO T2 to M43 adapter T2 to M43 adapter, suitable for ASI1600 ASI294 ASI183 ASI174 series and ASI533MC-P cameras.       Connection Guide: F...

ZWO Soft Bag for Cooled Cameras The ZWO Soft Bag for Cooled Cameras is included in the cooled cameras box. If you want to buy extra one, place the ...

Antares Adapter for Maksutov-Cassegrain And SCT Do you want the full repertoire of Schmidt-Cassegrain accessories for your Maksutov-Cassegrain? Jus...

ZWO 7nm SHO Narrowband Filters (Ha, OIII & SII) The ZWO SHO Narrowband Filter Set contains one H-alpha, one OIII and one SII filter. Use it for...

Antares 2" 90° Dielectric Diagonal The Antares 2" 90° Dielectric Twist-Lock Diagonal has multilayer dielectric coating with 99% reflectivity in gre...

Antares 1.25" 45° Erecting Prism Diagonal EID45 is a 1.25" 45 degree erecting amici prism for terrestrial viewing and is not recommended for high m...

ADM D Series 3.5 lbs Counterweight with 3" Threaded Rod The ADM D Series 3.5 lbs Counterweight with 3" Threaded Rod fits D Series dovetail bars and...

William Optics iOptron Skyguider Pro Dec adapter    In the Box William Optics iOptron Skyguider Pro Dec adapter Warranty & Manuals Willia...

William Optics 48mm T mount for Sony E - Black In the Box William Optics 48mm T mount for Sony E - Black Warranty & Manuals William Optics ...

William Optics Flat61 for ZenithStar 61 This flattener is for ZenithStar 61.            Technical Specifications Telescope Side Connection M54x...