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D90 Holder Ring for ASI Cooled cameras Diameter: 90mm Currently compatible with ASI 2600MM/MC Pro and ASI6200MM/MC Pro cameras. To easily mount the...

  Omni eyepieces offer a quality 4-element Plössl optical design at a super affordable price Rubber eyecups provide comfort and increase contrast....

Named for the Latin word for butterfly, PENTAX Papilio 6.5x21 binoculars are the perfect choice for insect observation in the field and in museums ...

Sorbothane gasket used in HyperStar conversion kit for Celestron 6" SCTs. Useful for retrofitting a factory-installed Fastar secondary assembly so ...

ZWO Electronic Filter Wheel (2025 Edition)- 5x2" Refined Design with Anti Light-Leak Protection The next-generation ZWO EFW series introduces an up...

ZWO ASI2600 MM Pro (2025 Version) The ZWO ASI2600MM Pro (2025) pairs Sony’s APS-C mono IMX571 sensor with high dynamic range, zero amp glow, and tw...

Starizona's autofocus and accessory kit for the Askar 50P enhances this already adorable telescope. The autofocus bracket works with the ZWO EAF an...

M42 Male, to M42 Female, 21mm in length

Adapter for HyperStar 11 or HyperStar 9.25 and ZWO M42 Filter Drawer for ZWO Cooled Cameras

The DC Y Splitter cable is a good quality DC cable that contains pure copper as the wire core. Usage: By having two female connections it makes it ...

The DWARF mini redefines portability in a smart telescope.  At only 1.85 lbs (840g), it's the smallest in the world, yet it delivers unparalleled e...

Filter Drawer with a thickness of 29mm that can be used for carrying 2” filter and connecting ASI cooled cameras to Nikon Lens. It is compatible wi...

Enjoy better views through your telescope with this premium diagonal featuring diffraction-limited optics and dielectric coatings Provides a 90° ...

Product introduction Welcome to our...

 The Askar 140APO is an OTA with a 140mm aperture, 980mm focal length, and f/7 native focal ratio.   The aperture of 140mm gives it an inherent adv...

The PhotoSol Orbit HEPA Blower is the only blower approved by NASA for use on the International Space Station’s instrument sensors. Use the Orbit ...

Made of anodized aluminum with female threads.

Users are often racked by the task of choosing and matching dazzling filters as well as adapters when it comes to using a filter drawer. It just be...

This version of the Counterweight Set will only work with the CPC-800. For other Celestron 8" SCTs, click here.Accurate balance is necessary for th...

Works on AZ-EQ6 and ZWO AM7 Counterweight Shafts 11lbs

Our 2-piece Bahtinov focusing mask is easy to install with a HyperStar and camera in place, even with camera cables in the way.  The two halves sna...

IDAS NB3-PM: PM stands for Passband Modification  Nebula Booster NB3-PM filter for OIII and SII the NB3, OIII and SII emission lines respectively. ...

Blast off and explore the universe with this captivating Moon mission-themed telescope! 100mm reflector with high-quality parabolic mirror offers ...

Looking to permanently mount your CPC telescope? You'll want this adapter kit to easily attach the CPC fork mount to a permanent pier. The top plat...

Antlia OIII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwa...

This adapter threads into the front (telescope side) threads of the SkyWatcher EvoStar ED focal reducer, allowing the reducer to be placed directly...

CNC machined secondary spider made of aluminum (EN AW-6061), black matt anodized, suitable for 8" TS-Optics GSO Photon This secondary spider is ma...

Use this adapter to connect a T-ring or T-mount camera to a 2" focuser. Low profile design keeps backfocus short. Threaded for 48mm filters.

This 3D printed case will hold our Origin filter drawer and a mounted filter, keeping the filter clean and safe and ready to go between sessions.  ...

42,000 object data base Built-in USB-B 2.0 port for easy control via PC or firmware updates Only compatible with Sky-Watcher SynScan mounts In...

M54-M48-2mm adapter is independently developed by ZWO and mainly used for connecting to 2”EFW and M54 filter drawer. 

M54 Male, to M48 Female, 21mm in length

Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on u...

Additional threaded 2.5-pound bottom counterweight for Starizona counterweight sets (for NexStar GPS and CPC telescopes). Necessary for heavy loads...