Telescope Accessories

This 1.25" Astro-Tech first-surface mirror star diagonal was named a Sky & Telescope Hot Product for 2007! Sky & Tel recognized that the As...

This 2" dielectric mirror-type star diagonal is designed to give you first-class performance with a Schmidt-Cassegrain - at a money-saving and far ...

A great solution for your focusing needs. The ZWO EAF provides precise focus control for all your imaging needs.  In April of 2021 ZWO introduced t...

This inexpensive finderscope quick-release bracket is designed to mount 50mm Antares right-angle finders primarily on Celestron and Meade Schmidt-C...

Upgrade your finder and stop straining your neck and back! This well-built 9x50 finder displays right side up, left-to-right correct views, a great...

AstroZap Focusing Cap with Built-In Bahtinov Mask – For Celestron 5" SCT & Astro-Tech AT115EDT Perfect focus doesn’t have to be a guessing game...

Thousand Oaks Digital Dew Heater Control Unit – Four Channel / Four Output Advanced Dew Prevention with Full Digital Control and Battery-Saving Eff...

This Astro-Tech 2" long x 90mm diameter extension ring can be installed between the rear cell of an Astro-Tech Ritchey-Chrétien astrograph and its ...

This 12" x 9" quick-reference sky chart shows the location of all 109 Messier objects on the front, a great help for binocular astronomers. It tabu...

This newly drawn large laminated Moon map identifies over 1000 landmarks visible in refractors and catadioptric telescopes, including features in t...

This handy map of the Moon's near side identifies nearly 300 craters by name that you can see in a small telescope (many are also visible in binocu...

This could well be the only Moon reference you'll ever need at your Newtonian reflector telescope. This large laminated Field Map of the Moon measu...

Thousand Oaks Dew Heater Strip – For 2" Eyepieces & Medium Finderscopes Reliable Dew Prevention for Larger Eyepieces and Accessories Larger opt...

This blue 7 x 50mm right-angle erect/right-reading image multicoated achromatic doublet finder is available as a more-convenient replacement for th...

This Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale. AstroZap Dew Heater Strap for 9.25"...

This Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale. AstroZap Dew Heater Strap for 9" &a...

This erect image/right-reading right-angle finderscope is a sensible and convenient replacement for the straight-through inverted image 8 x 50mm fi...

This right-angle erect/right-reading image finderscope is a sensible replacement for the straight-through inverted image 9 x 50mm finder supplied w...

This handy map of the Moon's near side identifies nearly 300 craters by name that you can see in a small telescope (many are also visible in binocu...

This right-angle erect/right-reading image finderscope is a sensible replacement for the straight-through inverted image finder supplied with Meade...

A convenient set of 26 individual star charts for planning future observing sessions. The best-selling Tirion Sky Atlas 2000.0 is the standard agai...

AstroZap Focusing Cap with Built-In Bahtinov Mask – For Meade ETX-90 and Similar Scopes The Meade ETX-90 and other compact Maksutov-Cassegrain tele...