Astro-Tech
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Astro-Tech 0.8x reducer/field flattener for f/6 refractors Used
$149.95This economical Astro-Tech 2" 0.8x reducer/field flattener is designed for astrophotography with f/6 focal ratio refractors, but will also work well with refractors in the f/5.5 to f/7 range . . .
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Astro-Tech 1" Extension ring for A-T Ritchey-Chrétien astrographs
$32.95This Astro-Tech 1" long extension ring, installed between your Astro-Tech Ritchey-Chrétien astrograph and its focuser, helps you match the back focus required for your particular complement of imaging components . . . -
Astro-Tech 1.25" #ND9 13% Transmission neutral density grey Moon filter
$12.95This Astro-Tech 1.25" 13% transmission neutral gray filter reduces the brightness and glare that can mask low contrast details during lunar and planetary observing . . . -
Astro-Tech 1.25" 99% Reflectivity dielectric mirror diagonal
$79.95This 1.25" dielectric mirror-type star diagonal was a Sky & Telescope Hot Product for 2007! Considering its performance, it would be an outstanding value at twice the price. At its economical low price, it's still a hot product, and nothing short of sensational . . . -
Astro-Tech 1.25" 99% reflectivity dielectric quartz mirror diagonal
$119.95THIS PRODUCT HAS BEEN DISCONTINUED. THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY.
In addition to 99% reflectivity dielectric coatings, this Astro-Tech 1.25" star diagonal has a premium first-surface mirror made of low thermal expansion quartz, rather than conventional BK7 glass . . .
Out of stock
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Astro-Tech 1.25" prime focus/variable eyepiece projection adapter, needs T-ring
$44.95This three-part Astro-Tech camera adapter lets you do both prime focus and variable magnification eyepiece projection astrophotography with 1.25" focuser telescopes . . . -
Astro-Tech 1.25"/2" laser collimator
$44.95This 1.25" red Astro-Tech Laser Collimator, with 2" adapter, makes quick work of collimating the optics on your Newtonian reflector telescope . . . -
Astro-Tech 10" f/4 carbon fiber truss-tube imaging Newtonian
$1,795.00For serious deep space astrophotographers, this Sky & Telescope 2016 Hot Product 10" Astro-Tech AT10INT carbon fiber truss tube imaging Newtonian may be all the scope you will ever need.
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Astro-Tech 10" f/8 Ritchey-Chrétien carbon fiber optical tube
$3,495.00After many customer requests, we are proud to now offer the Astro-Tech AT10RC Ritchey-Chrétien astrograph, a Sky and Telescope Hot Product for 2010, with a premium low thermal expansion carbon fiber body. The AT10RC is the first truly affordable large aperture true Ritchey-Chrétien astrograph available from a U. S. company, and is priced thousands of dollars less than competitive 10" RCs. -
Astro-Tech 10" f/8 Ritchey-Chrétien optical tube
$2,495.00The 10" Astro-Tech AT10RC Ritchey-Chrétien astrograph is a Sky & Telescope Hot Product for 2010 and an Astronomy Star Product for 2010 award winner. The AT10RC is the first truly affordable large aperture true Ritchey-Chrétien astrograph available from a U. S. company. Imitators will copy Astro-Tech's years of work, but why settle for a copy when you can get the original?
