Astronomy

The Antares 90° Star Diagonal lets you view objects at a 90° angle from where the telescope is pointing, for comfortable observing when the scope i...

The Antares 45° Erecting Prism uses an Amici prism design to deliver a fully corrected image that is upright and correct from left to right. Viewin...

Step up your visual and imaging experience with the Antares 2" Dielectric Mirror Diagonal for SCT telescopes. Its multi-layer dielectric coating de...

Precisely collimate your Newtonian or Schmidt-Cassegrain telescope for the sharpest image your optics can deliver, especially in fast systems. This...

Cut through light pollution and boost nebula contrast with the Celestron UHC/LPR (Ultra High Contrast / Light Pollution Reduction) filter. This 2" ...

Cut through light pollution and boost nebula contrast with the Celestron UHC/LPR (Ultra High Contrast / Light Pollution Reduction) filter. This 1.2...

Reveal the faint detail of planetary and emission nebulae with the Celestron Oxygen III (OIII) narrowband filter. This 2" filter isolates the doubl...

Reveal the faint detail of planetary and emission nebulae with the Celestron Oxygen III (OIII) narrowband filter. This 1.25" filter isolates the do...

When observing bright objects such as the Moon or certain planets, you can progressively dim the view to a level according to your needs, whilst in...

*** PRICE IN US DOLLARS***

Combination camera adapter for 1.25" that allows for both direct and variable extention eyepiece projection photography.

 Adapts your 1.25'' focuser directly to M42 T-Thread. Threaded for filters.

Combination camera adapter for 1.25" that allows for both direct and eyepiece projection photography. Threaded for filters.

The Celestron Reducer/Corrector is a combination focal reducer and field corrector that transforms your Schmidt-Cassegrain telescope into a faster,...

Extra plate for your TELRAD. Very useful for using on a second telescope without having to buy an extra finder!

These Riser Bases will position the Telrad Reflex Sight to a higher position off the telescope tube assembly to clear obstructions on the tube asse...

The Telrad is a one power (1X) sight that was originally designed for installation onto astronomical telescopes as an aid to locating deep sky wond...

Prevents condensation to form on the mirror of your telrad!

The Antares W70 is a series of wide-field eyepieces offering a generous 70° apparent field of view in a standard 1.25" barrel. Available in a range...

The TeleVue Nagler is the eyepiece that redefined wide-field observing. The Type 6 series packs an expansive 82° apparent field into a compact, lig...

TeleVue Delos eyepieces set the standard for comfortable, immersive observing. Building on the legendary Ethos design, each Delos delivers a tack-s...

The smc PENTAX XW series is a line of premium wide-angle eyepieces for astronomical telescopes and large spotting scopes, available in focal length...