Telescopes

Optical tubes based upon the Ritchey Chretien design are known very well for their successfull astrophotography, and the 10" optical tube by Astro-Tech is no different! What is different is the price! This optical tube is boosting quality while saving you approximately $4,000! Astro-Tech has delivered top quality Ritchey Chretien optical tube astrograph for an affordable price! Some of the optical enhancements the observer gets when purchasing this optical tube include quartz mirrors, dielectric mirror coatings, and many more! Sky & Telescope magazine named this one of their "Hot Products" in 2010!

Ritchey Chretien astrograph telescopes are exclusively used in many professional fields, including the HST. Astro-Tech has designed a 6" f/9 Astrograph that is based upon this design to the amateur astronomer at affordable prices. Due to its weight of 12.9 pounds and a supplied Vixen style dovetail, this astrograph is primarily compatible with virtually any equatorial mount, so there is no need to buy an additional mount specific for this scope.

A telescope with high quality optics is key to great observing. However, a high quality telescope priced reasonably is less common. The Astro-Tech 8" Ritchey Chretien is a fabulous optical tube with an excellent reputation for being astrophotography friendly. The telescope features internal optics such as a carbon fiber external body, quartz mirrors, dielectric mirror coatings, and two dovetail mounting rails.

Astro-Tech has built this optical tube by increasing their previous aperture of 66mm to a now 72mm. This allows 9% higher resolution and 19% better light gathering. In addition, a new and updated focuser has been supplied with this telescope.

This green optical tube from Astro-Tech is a piece of equipment every advanced serious astronomer should consider. With high quality refractive optics, fabulous accessories, it is pretty amazing. Some of the key features of this item include the dual speed rotating focuser (10:1 ratio focusing) and high quality ED optics great at preventing chromatic aberration. This scope is so high key, Astronomy magazine designated it previous version a “a great grab-and-go scope, a fine little astrograph, a super-finder scope, and a daytime spotting scope.”. Now, Astro-Tech has added even more to the picture.

This 111mm triplet refractor from Astrotech has an increase of 18% light transmission when compared to a 102mm refractor ota. This telescope is a huge investment, as it can save you a maximum of $800 dollars for a telescope with better optics and light transmission as opposed to other refractors with similar apertures. Featuring Ohara glass, this refractor delivers sharp images that can avoid chromatic aberration.

Astro-Tech has equipped this telescope with a 2.7" Linear Crayford focuser, with a 10:1 focusing ratio. This 360° rotatable focuser allows the observer to place their eyepieces anywhere they please, and the 2" and 1.25" compression rings protect the eyepieces when mounted.

Safe and secure portability is also crucial in extending the life of your telescope and preventing where in tear, so Astro-Tech has included an aluminum-frame carrying case with their 130mm Refractor.