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This adapter will step M42 threads up to M48.  It has M42 female on the inside and M48 male on the outside.  It does not add any length to the opti...

Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most of the optics are ...

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

Baader Planetarium's AstroSolar™ Safety Film delivers white light views of the Sun that are unmatched by any other objective solar filter or materi...

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...

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...

NOTE: Explore Scientific Eclipse Glasses are rated ISO12312–2, tested and approved by ICS Labs for Direct Observation of the Sun. In addition, Expl...

By removing the original faceplate or tip-tilt adapter on the RedCat 51 you can thread this adapter directly to the scope giving you the correct th...

PEC*PADs are the ideal photo wipes for those who hate photowipes! Until PEC*PADs came along, photowipes fell apart, left lint and scratched emulsio...

The T-adapter can work in two different length configurations, one suitable for the nominal f/10 backfocus of 133.35mm, and a shorter configuration...

X-Cel LX eyepieces, optimized for planetary viewing, offer a 60° field of view through a six-element fully multi-coated lens system Pop-up rubber...

Custom-designed adapter works in conjunction with the Celestron Off-Axis Guider to produce a larger area of illumination when imaging through l...

Using a Celestron CPC telescope just got even easier!Setting up a Celestron CPC scope is a cinch, but sometimes finding the right spot to set the t...

This filter step ring is made specifically with the Starizona Filter Slider system in mind. It steps the M48 threads of a standard 2" filter down t...

Feature 1. Lightweight, 16.5mm thickness 2. Large prism: 8*8mm 3. Connect the main imaging camera and the guide camera. No guide scope required! 4....

This power adapter converts the standard Sky-Watcher aviation power adapter port into the more common female 2.1 x 5.5mm female adapter.

AstroLevel, the ultimate accessory for your ZWO SeeStar S50 smart telescope. Designed to seamlessly connect to your SeeStar's tripod, AstroLeve...

Digital Display Fast Charging Accurate Battery Level Display Ultra-high Capacity 20000mAh SPECIFICATIONS: Capacity: 3.7V/20000mAh/74Wh Dimensions: ...

Interchangeable replacement tops for Starizona's Original Filter Slider. Not compatible with Starizona's newer Modular Filter Slider.   Top Plate T...

Optional temperature sensor for ZWO EAF Focuser.

This adapter adds 4.2mm to your Starizona Filter Slider making it 21.7mm in total length, compensating for the .7mm that a standard Filter adds to ...

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

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

Virtual View - The Visual Back with a Twist! Have you ever been to a star party with both kids and adults and wished you had an easy way to adjust ...

Dovetail plate adapter. Works with both D and V series plates. Mounts to existing rings or telescopes. For use with dovetail plate. Once mounted, n...

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

Use this dual finder bracket to mount multiple items to a single finder shoe.  Perfect for a small guidescope like the ZWO Mini 30mm along side a Z...

OAG-L has a large prism size of 12*12mm, far bigger than M68 OAG. The bigger clear aperture brings wider field of view in guiding. It is easy to us...

Adapter for HyperStar 8 or 6 when using a ZWO Filter Drawer (M42) and a ZWO Cooled Camera. 

The filter wheel body is CNC milled from an aircraft graded aluminum block. Excellent craftsmanship, very thin and light with only 20mm thickness....

T-thread adapter for autofocus Canon EOS EF cameras.

This PETG 3D printed altitude knob replaces the original Sky-Watcher EQ6 altitude knob with a larger easier to grab alternative.  To install simply...

NexStar+ Hand Control is compatible with all altazimuth (AZ) NexStar telescopes Flash upgradeable via the Internet; latest updates can be found at...

  Enables automatic alignment of your Celestron computerized telescope. See a full list of compatible telescopes in the technology tab. No need to...

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

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

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...

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

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

NexStar+ Hand Control works with Celestron equatorially mounted computerized telescopes Compatible with Advanced VX, CGEM, CGEM II, CGX, and CGX-...

This new 1.35 kg (3 lb) counterweight is designed for SkyTracker Pro and SkyGuider pro counterweight package (#3324), as well as other iOptron moun...

12-volt DC power cord to connect Celestron Advanced Series, AVX, CPC, CGE, and NexStar telescopes to battery supply. Cigarette-lighter style plug.

This is the standard stainless steel counterweight included with HyperStar lenses for fork-mounted telescopes. It has a 1.25" barrel that fits into...