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The 1.0x flattener does not change the telescope's focal ratio itself. After connecting with the Askar 185APO, it still maintained a focal ratio of...

9.25" f/10 Schmidt-Cassegrain optical tube. Includes aluminum tube, enhanced XLT coatings, CGE (Losmandy-style) dovetail bar, 25mm Plossl eyepiece,...

A sweeping tour of the galaxies, from our Milky Way to infinity. Galaxies are glittering islands in the Universe, interwoven in the web of Dark Ma...

Celestron's Star Diagonal lets you view objects that are at a 90° angle from the direction the telescope is pointing, thereby allowing comfortable ...

This version of the Counterweight Set will not work with the CPC-1100. For the correct version, click here. Accurate balance is necessary for the b...

This adapter converts T-threads (M42) to C-threads (1.0"). It has female T-threads on the bottom and male C-threads on the top. The adapter adds 5....

Use this adapter to connect a T-ring or T-mount camera to a 2" focuser. Low profile design keeps backfocus short. Threaded for 48mm filters.

Polar align your Celestron CGEM, Advanced VX, or CG-5 equatorial mount with this Celestron Polar Finderscope Inserts into the polar finder port a...

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

The NOMAD star tracker from Move Shoot Move is a super handy portable tracking mount for shooting Milky Way photos with a DSLR or mirrorless camera...

ZWO Holder Ring for ZWO ASI PRO COOLED CAMERAS with appr 78mm diameter. Currently compatible with the following ZWO cameras: ASI1600 Pro, ASI183 P...

The Askar Losmandy-style universal dovetail plate is made of lightweight aluminum ally and more resistant to scratches or collisions due to its an...

Star Adventurer 2i multi-function equatorial tracking mount with built-in Wi-Fi control  11-pound payload capacity  Dec bracket included  Built-i...

Starizona makes this small adapter ring to allow the replacement of the stock focuser on the Lunt LS50 solar telescope with the Borg Helical Focuse...

Cable Length: 0.5 meters USB Connector Type: Type-B(male) to Type A(male)

This replacement adapter came with the original Starizona RASA8 Filter Slider converting the bottom M48 to M42 and adding 1mm to the Filter Slider ...

Aluminum dew shield fits Celestron 6" SCTs with HyperStar Celestron 6 SCT & Hyperstar Dew Shield 12" in total length Top, bottom and side notc...

Reach for the stars with Flash of Brilliance Children really do enjoy learning, especially at a young age. They have a natural curiosity that you c...

Exploring the Night Sky is aimed at novice star gazers anxious to expand their astronomical repertoire beyond the Big and Little Dippers. Dickinso...

Our 1-1/4" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specificall...

We can make a variety of custom adapters for the HyperStar lens. These are often used with system such as filter drawers or with uncommon camera se...

The 0.8x reducer can bring Askar 185APO's focal ratio down to F5.6. This is a standard reducer with field flattening capabilities as well. A shor...

Antlia OIII Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nmbandpass. As the bandwidth becomes narrower, the 3nm Pro narr...