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Holds standard 2" mounted filters with 48mm threads. Be sure to choose the correct version of Filter Slider you have.

Important things to know about HyperStar adapters: DSLR adapters will not work with the Filter Slider Filter Slider Adapters do not come with a St...

This 3D-printed case is made to hold the filter drawer from our Filter Slider. The drawer with filter installed fits into the case for protection a...

Performance The diagram above shows how the SCT Corrector improves the off-axis spot size on a Celestron 11" SCT. Performance is similar on oth...

Dr. David H. Levy Talks about Hyperstar How to Install Your Hyperstar HyperStar Promo Video Features The HyperStar 8 lens converts...

EvoFF v2 available now! The new Starizona EvoFF field flattener turns the Skywatcher Evoguide 50 into a sharp, portable, wide-field imaging scope. ...

* HYPERSTAR USERS: If you're ordering a Modular Filter Slider for your HyperStar you will also need to purchase a Filter Slider Adapter for your ...

The ApexEd Threaded Focuser Adapter currently comes in either stock Sky-Watcher Esprit and Explore Scientific focusers options. You can pick betwee...

With the Apex ED reducer, an f/5.5 apo refractor becomes an incredibly fast f/3.6 astrograph. A slower f/9 telescope like an RC becomes a speedy f/...

The filter drawers can be pulled in and out using a small knob. This knob is required because the filter slider will be completely flush with your ...

HyperStar 11 photos taken by the amazing: Andreas Bringmann Dr. David H. Levy Talks about Hyperstar How to Install Your Hyperstar Hy...

Turn your Newtonian telescope into a fast, high-quality astrographic instrument with the Starizona Nexus focal reducer.Newtonian telescopes require...

Purchase additional filter holders to easily use multiple filters with the Starizona Filter Slider. Holds standard 2" mounted filters with 48mm thr...

Once installed (see instructions at bottom), the actions appear in the Actions palette in Photoshop and a selected action may be “played” by simply...

Dr. David H. Levy Talks about Hyperstar How to Install Your Hyperstar HyperStar Promo Video M31 image taken by Jammey Church T...

The NexStar SE Bracket tilts the hand controller at a convenient 30-degree angle, making it easy to read the LCD and use the controller even while ...

Our solution was to make a level that fits onto a convenient surface on the mount and converts that angled surface into a horizontal one. The AVX L...

Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) a...

Dr. David H. Levy Talks about Hyperstar How to Install Your Hyperstar HyperStar Promo Video Features The HyperStar 9.25 lens con...

35.3mm T-to-T spacer (M42 female to M42 male).  This adapter takes up 35.3mm of the Starizona SCT Corrector's 90.3mm back focus. Leaving 55mm of ba...

The Starizona RASA 8 Filter Holder allows you to use 2" filters with the Celestron RASA 8" telescope with cameras that are not compatible with a F...

This filter step ring is made specifically with the Starizona Filter Slider system in mind. It is zero profile, adding no extra height to the 1.25"...

This Filter Blank for the Starizona Filter Slider fits into a holder just like a filter but is solid to provide a "shutter" for taking dark frames ...

This machined aluminum bracket is designed to allow mounting of the ZWO EAF focus motor to the SkyWatcher Esprit line of refractors.  Mounting hard...