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Optolong UHC nebula clip filter for Canon EOS full frame cameras! The UHC (Ultra High Contrast) broadband filter is designed to improve the visibi...

Use this adapter to connect a camera with female T-threads to a device with male C-threads. Ideal for using T-thread autoguiders such as the Orion ...

Use this female T-thread to male T-thread spacer to extend standard T-thread adapters to achieve the correct backfocus for your telescope. Availabl...

Works with ZWO Cameras and ZWO ASIair Works on Celestron Mounts and Products 2.1x5.5 Male Connector Center positive 4ft long cord with 6ft exten...

Be prepared for wherever adventure leads with the National Geographic LED Rechargeable Trek-Light that can illuminate your path at distances up to ...

The iEXOS-100 is an astronomical GOTO system that utilizes a proven German equatorial mount design and Explore Scientific’s revolutionary PMC-Eight...

The popular Sky-Watcher SolarQuest mount is an awesome little sun tracking mount that works perfectly with many solar telescopes, but some telescop...

Upgrade your Schmidt-Cassegrain or Maksutov-Cassegrain telescope to accept standard 2" accessories. The internal threads create a secure connection...

The T2 tilter adds multiple screw holes to help connect to ZWO EFW (compatible to 2” EFW filter wheel). Package and size Main body：Diameter 78mm，11...

Suitable for cameras which back focus distance is 12.5MM or 17.5mm This new ZWO-EOS-T2-Ⅱ adapter has two parts (EOS-T2 adapter and 5mm length T2-ex...

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...

Product Description This precision-machined 15 mm M48 Extension Tube is designed to provide an exact increase in optical path length for fine-tunin...

This double ring set offers improved stability over single camera body mounting rings for using a ZWO camera with a DSLR camera lens.  The ring set...

This double ring set offers improved stability over single camera body mounting rings for using a ZWO camera with a DSLR camera lens.  The ring set...

Concept: Just as Delos eyepieces were developed based on Tele Vue's Ethos eyepiece design advancements, DeLite is the logical step toward a smaller...

Our extremely popular Filter Slider is now available for the Celestron Origin!  The Filter Slider allows easy swapping of standard 2" filters.  The...

Pre-Order Now! Press release from Tele Vue: ConceptThe Nagler Type 7 series was developed as a natural extension of our highly regarded, 85°,limite...

The 7-element, Nagler Type 6 design is based on the original patented Nagler design. This new 7-element design update for the short focal length Na...

ED objective lenses provide superior images virtually free of chromatic aberration with accurate color reproduction, increased resolution and con...

The Starizona SCT Corrector requires the proper camera adapter to achieve the correct lens-to-CCD distance. This ensures the best optical performan...

Honders Advanced Catadioptric optical design Radiant Aluminum Quartz (RAQ)™ mirror coatings Wide-open 250mm focal length FAST f/2 focal ratio 5-in...

• Waterproof • Tear-Resistant • Stargazer Map and Guide The name Solar System is derived from "Sol" or sun, and describes our planetary system orbi...

In astrography, Nikon, Canon, Sony mirrorless cameras have been used more and more frequently by astronomy amateurs in recent years. Therefore, on ...

In astrography, Nikon, Canon, Sony mirrorless cameras have been used more and more frequently by astronomy amateurs in recent years. Therefore, on ...

Powerful 20x optical system for an image that is close-up to the action Large 50mm objective lenses with tremendous light gathering capability Hig...

Bats are one of the most unique and mysterious animals on earth. You may have feared them or have been fascinated by them. Either way, you have wan...

3 element - 0.75x-Flat Field for sharper stars all to way to the edge.  Specifically made for the 106mm APO. Screws on to the M63x1-Thread. 0.75x f...

A compact 96mm apochromat for powerful images A compact apochromat for powerful images This APO with a 96mm aperture offers This APO with a 9...

This version of the C14 MicroFocuser will fit both the Edge HD and new-style non-HD 14" SCTs from Celestron. The "new-style" non-HD C14s have the s...

For over 50 years, Fisher Space Pen has been proud to have our technology approved and used on every crewed flight into space since 1967 with NASA....

To achieve true dynamic balance with a fork-mounted SCT, both top and bottom weights are required. See stock number CWCPC8-CS for the complete top ...

M42 Sensor tilt adapter Product: M42 sensor tilt adapter Thickness: 5mm Suitable for APS-C cameras (ASI2600) You can connect it to M68 OAG and 2”E...

Finder Charts are printed on white vellum card stock to make them durable. The black printing and stars on a white background makes them easily rea...

What do you see when you look up into the sky at night? The moon, stars, maybe even a comet or asteroid? You can also see other planets! In Planet...

This is a replacement for the secondary mirror mounting plate that is included with the HyperStar 6.

This is the top half of the Celestron CPC-925 counterweight set. Use this if you already have a bottom slidebar kit from Celestron or Losmandy. Inc...