Advanced Telescopes and
ED Refractors from the 65mm Quadruplet to the 130mm Triplet
aperture Hubble Space Telescope uses Ritchey-Chrétien optics to take
stunning deep space pictures. So do the 8" and 10" Astro-Tech RC's, but
at only a tiny fraction the Hubble's cost . . . Up until now, the
coma-free performance of a true Ritchey-Chrétien optical system came
only in large apertures that typically started at well over $10,000 –
putting true R-C optics out of the reach of most astrophotographers. So
Astro-Tech partnered with the best-known optical shop in Taiwan to
produce a full line of top-quality true Ritchey-Chrétien astrographs at
prices that most astrophotographers can afford. It really is possible to
produce a true Ritchey-Chrétien that you don’t have to be a millionaire
to own. Astro-Tech has proved it with the imaging scopes below.
Astronomy Technologies Astro-Tech
8" f/4 imaging Newtonian OTA
The serious astrophotographer
will find the contrast-enhancing extended nose and 15 internal
knife-edge baffles of the Astro-Tech AT8IN imaging Newtonian to be just
what the imaging doctor ordered to improve the looks of his or her deep
space photos . This 8" Astro-Tech AT8IN optical tube is a very fast
focal ratio f/4 reflector that has been optimized for high-contrast wide
field deep space imaging. It also works well for spectacular wide field
deep space visual observing, as well as high contrast solar system
visual observing and imaging. It can be used with 1.25" and 2"
eyepieces, 35mm cameras, DSLRs, web-cams, DSI-type cameras, and large
format CCD cameras alike.
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 might swear this
compact air-spaced ED doublet refractor is an apochromatic.
A review in the July 2008 Sky & Telescope
said the Astro-Tech Voyager altazimuth mount had “excellent fit and
finish" that made it “a handsome piece of equipment."
exceptionally well-made and stable Astro-Tech Voyager altazimuth
mount can be the heart of your very portable telescope/mount system.
It is perfect for grab-and-go terrestrial observing and casual
visual astronomy. The lightweight all-metal Astro-Tech Voyager can
hold substantial optical tubes weighing up to 20 pounds (9kg), but
there are no heavy counterweights to attach to balance a heavy tube
and no alignment on the celestial pole needed to start observing.
Simply slide your optical tube into the Vixen-style dovetail on the
Voyager mount’s altitude axis and start viewing.