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This bracket provides a solid, easy attachment of the ZWO EAF autofocus motor to a Skywatcher Quattro Newtonian focuser.  There are two versions of...

Use this adapter to attach accessories with standard M48 filter threads to a 2" focuser. The adapter has male M48 threads on one side, and a male 2...

The iconic 8-inch Schmidt-Cassegrain has been known for decades as Celestron’s most beloved telescope. Now beginner to intermediate astroimagers ca...

T-thread adapter for autofocus Canon EOS EF cameras.

Sorbothane gasket used in HyperStar conversion kit for Celestron 11" SCTs. Useful for retrofitting a factory-installed Fastar secondary assembly so...

This adapter will step M48 threads up to M54.  It has M48 female on the inside and M54 male on the outside.  It does not add any length to the opti...

The RASA 8 Filter Holder allows the use of 2" filters on Celestron's RASA 8" telescope with a camera using M54 threads and having a 17.5mm backfocu...

Looking to permanently mount your AVX mount? You'll want this adapter kit to easily attach the AVX equatorial mount to a permanent pier. The top pl...

Sorbothane gasket used in HyperStar conversion kit for Celestron 8" SCTs. Useful for retrofitting a factory-installed Fastar secondary assembly so ...

20mm long adapter from female M48x0.75 to male M48x0.75 threads.  This can be useful to get 55mm backfocus with a ZWO cooled camera (17.5mm) and St...

M54 male to M54 male adapter.  Adds 1mm to backfocus.  Useful for attaching a ZWO 6200 camera to the ZWO 2" filter wheel without bolting the wheel ...

This is the standard stainless steel counterweight for use with HyperStar lenses on fork-mounted telescopes (also known as Alt/Az mounts).  The wei...

This version of the Counterweight Set will only work with the CPC-1100. For other Celestron 11" SCTs, click here. Accurate balance is necessary for...

The only purpose of this adapter is to replace the top of an already existing HyperStar adapter to change its thread type.  An example of this is i...

20mm adapter that connects Starizona's Filter Slider to the Stock RASA 11 adapter for ZWO Cooled cameras. Yay!

This kit allows a non-HyperStar-compatible SCT to be converted into a compatible telescope. The kit includes three components that replace the orig...

If you are loading extra equipment on your Celestron Advanced VX Equatorial Mount, you may need additional counterweights. This anodized counterwei...

About the book from the Author, David Levy: "It is a book I have been working on for almost a decade, and it is the story of my life. The book begi...

Sorbothane gasket used in HyperStar conversion kit for Celestron 9.25" SCTs. Useful for retrofitting a factory-installed Fastar secondary assembly ...

Sun Catcher Solar Eclipse Glasses (4-Pack Assortment) Watch the Total Eclipse Event on April 8th, 2024 in safety, comfort, and style. Made with an...

7.5mm M42 to M42 spacer

Add an EAF to your Sky-Watcher HAC125 DX!  This kit includes a pulley that fits on the focus knob on the back of the HAC125 and a belt to drive it ...

CNC machined primary mirror mask made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 200PDS/Quattro The precisely machine...

Quality X-Cel LX 2x Barlow doubles the magnification of any 1.25” eyepiece 3-element apochromatic, fully multi-coated optics offer up bright, shar...

Attach a variety of accessories to your Advanced CG-5 or Advanced VX mount with this Universal Mounting Plate. Several different mounting holes to ...

Get ready for the next awe-inspiring comet with a pair of sleek, portable Celestron Cometron 7x50mm binoculars. The large 50mm objective lenses an...

The Starizona Cool Edge was named one of Sky & Telescope's Hot Products for 2012! This innovative product from Starizona is designed to hel...

Askar M54 off-axis guider supports imaging with up to full-frame astronomy cameras Includes M42, M48, and M54 adapters and extension rings to a...

CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 200 PDS/Quattro This secondary spider i...

CNC machined primary mirror mask made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 250PDS/Quattro The precisely machine...

Seestar TH10 hydraulic tripod head is specially designed for use with Seestar smart telescopes in equatorial mode. It also compatible with most ...

CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Skywatcher 150 P/PDS/Quattro This secondary spider ...

Preserve your night vision while stargazing with this straightforward red LED flashlight. The single-button design makes it effortless to toggle on...

This is the top camera adapter plate for our T-Adapter with Filter Holder for large EdgeHD scopes.  The T-adapter normally comes with M42 threads, ...

This stainless steel counterweight can be used as an addition to the top portion of the Starizona's Counterweight Kit or as additional weight for b...

T-Adapter attaches an SLR or DSLR camera to a Schmidt-Cassegrain telescope for prime focus photography Threads on to the rear cell of Schmidt-Cass...

Dovetail for mounting a Celestron 8" SCT to a Celestron CGE-style or Losmandy D-style saddle plate or for piggybacking a guidescope or camera. Plea...

This adapter ring will convert a standard HyperStar C8 into an HD version to work on an EdgeHD telescope.  It simply threads into the existing bott...

Available Now! Use 2" filters with your HAC125 DX! There are two parts to this filter holder.  There is a flange that threads onto the HAC125 in pl...

CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 250 PDS/Quattro This secondary spider i...

Most accurate way to guide – improved accuracy compared to using a separate guide scope. 12.5mm multi-coated prism with aluminized backing for max...

CNC machined primary mirror mask made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 150PDS/P/Quattro The precisely machi...