Astro-Tech

This #23A light red Astro-Tech 1.25" eyepiece filter is useful when observing Mercury and Venus during the day and at twilight and when observing M...

This economical Astro-Tech 2" 0.8x reducer/field flattener is designed for astrophotography with f/6 focal ratio refractors, but will also work wel...

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...

If you are a serious deep space astrophotographers with a big mount, this Sky & Telescope 2016 Hot Product 12" Astro-Tech AT12INT carbon fiber ...

This newest Version A of the Astro-Tech AT12RCT carbon fiber Serrurier truss Ritchey-Chrétien Hot Product for 2015 makes high quality large-apertur...

This product is discontinued.  This is here for informational purposes only. Great hard case designed to carry and protect your Astro-Tech 152EDT r...

This newest version of the Astro-Tech AT16RCT carbon fiber Serrurier truss 16" f/8 Ritchey-Chrétien Hot Product for 2015 makes high quality large-a...

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 ...

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 ...

New for August 2021, thread on adatper tops to choose between 42mm T-threads and 48mm T-threads. Named a Sky & Telescope Hot Product of the Yea...

This Astro-Tech 2" x 35mm extension tube is used to make up for the loss of light path when a 2" star diagonal is removed from many refractor focus...

This Astro-Tech 2" x 50mm extension tube is used to make up for the loss of light path when a 2" star diagonal is removed from many refractor focus...

This Astro-Tech 25mm Paradigm Dual ED is an excellent medium to low power eyepiece for encompassing open clusters, picking up detail in emission an...

The 32mm Plössl that came with your telescope served you well. You learned the sky with it. But somewhere along the way you noticed: the field is n...

This physically short (3.1") Astro-Tech 2x achromatic Barlow is an inexpensive way to cleanly double the power of any 1.25" eyepiece in your collec...

You have five eyepieces in a case and you need ten focal lengths. The obvious answer is a Barlow — double the power of every eyepiece you own in on...

This Astro-Tech 3.2mm Paradigm Dual ED eyepiece is excellent for medium high to high power magnification viewing with short to medium focal length ...

This Astro-Tech 5mm Paradigm Dual ED eyepiece is excellent for medium to medium high magnification viewing with short to medium focal length refrac...

This new light weight 6" f/4 Astro-Tech imaging Newtonian reflector makes serious very wide field astrophotography possible with even a small equat...

The exceptional value 6" Astro-Tech Ritchey-Chrétien astrograph is once again available for the serious deep space astrophotographer on a budget . ...

At 7mm, you're pushing into serious magnification territory. In a 10-inch f/5 Dobsonian, the 7mm XWA delivers 179x — high enough to resolve fine pl...

Seven millimeters is the high-power eyepiece in a 1.25" barrel — the one that turns a 10-inch Dob into a planet machine. At 179x, Jupiter shows clo...

A review of three Astro-Tech astrographs (the AT6RC and AT8RC Ritchey-Chrétiens, as well as this AT8IN Imaging Newtonian) in the December 2009 issu...

The Astro-Tech AT8RC is the first affordable 8" Ritchey-Chrétien with premium features available to the amateur astronomer who is into serious deep...