This Astro-Tech 2” 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 . . .
The superb mechanics and many features of the Astro-Tech AT80ED refractor will be the first thing you notice. The sensible price and the images of its outstanding ED (Extra-low Dispersion glass) optics will be what you remember . . .
The 6” Astro-Tech AT6M Rumak-type Maksutov-Cassegrain optical tube provides apochromatic refractor-like images at only a very small fraction of a large apo refractor’s price . . .
This 17mm Astro-Tech Series 6 is a good quality medium power eyepiece with a very wide 65° field of view that will add expansive deep space vistas to your observing kit at a price only a fraction that of exotic wide field designs with a similar field of view . . .
This forest green Astro-Tech adapter clamps onto a Losmandy-style "D-plate" dovetail to let you mount a telescope tube ring or accessory on the dovetail . . .
If this Astro-Tech AT80EDTA was just another feature-laden binoviewer-ready 80mm doublet apo refractor, it would be fairly priced. But – this is not a doublet. It has a genuine ED triplet lens system that Sky & Telescope said has “essentially textbook-perfect diffraction images,” and that makes it an astronomical bargain indeed . . .
This 1.25" Astro-Tech broadband light pollution filter reduces moderate city light pollution as much as the best-known filters, but at only a fraction their price . . .
The Astro-Tech AT72ED is a worthy successor – and upgrade – to the AT66ED, an Astro-Tech scope that Astronomy magazine called “a product everyone should own.” The AT72ED is optically so good, despite its low price, that you’ll swear this compact air-spaced ED doublet refractor is an apochromat . . .
This black-anodized 13” Astro-Tech Losmandy-style “D-plate” universal dovetail plate lets you mount long focal length optical tubes on Losmandy G11, HGM Titan, and GM-8 mounts, as well as on Celestron CI-700, CGE, and CGE Pro mounts . . .
