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

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/...

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...

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

This wide M48-threaded T-ring will fit Canon RF-mount mirrorless cameras.  It is a "T-minus" style ring that is only 10mm thick.  This allows it to...

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...

By removing the original faceplate or tip-tilt adapter on the RedCat you can thread this adapter directly to the scope giving you the correct threa...

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

Starizona's variable M42 T-Thread adapters available in three sizes.     Available Sizes: 15mm - 20mm 20mm - 30mm 30mm - 45mm

Starizona's variable M48 adapters available in three sizes.     Available Sizes: 15mm - 20mm 20mm - 30mm 30mm - 45mm

Here's a cool comparison with a HyperStar C9.25 using no filter, a L-Pro Light Pollution Filter, and the new L-eNhance Filter from Optolong. The L...

L-eXtreme is a two 7nm bandpass filter which can be used with one-shot color cameras like DSLR's (digital SLR), and monochrome CCD cameras, it is a...

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

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...