The Orion 8 inch Ritchey-Chretien Astrograph’s outstanding optical design lets you capture spectacular, detailed images of deep-sky objects like never before. Unlike conventional Newtonian reflector and Schmidt-Cass grain designs that are susceptible to coma away from the center of the field, the Ritchey-Chretien utilizes hyperbolic primary and secondary mirrors, made of BK-7 optical glass, to achieve wonderfully flat-field images that are virtually coma-free. Images are also free from chromatic aberration, since there are no lenses. The Orion 8 inch Ritchey-Chretien Astrograph is ideal for use with small CCD-chip cameras such as the Orion Star Shoot line, as well as medium-format CCD and DSLR cameras. The telescope’s wide, fully illuminated flat field produces pinpoint star clarity all the way to the edge of the camera’s sensor. The Orion 8 inch Ritchey-Chretien Astrograph features a machined, dual-speed (10:1) Crawford-style focuser with an engraved millimeter scale on the drawtube. The secondary mirror is precisely center-marked to facilitate collimation. The enameled steel optical tube weighs only 18.5lbs. and features a Losmandy-style dovetail mounting bar underneath for trouble-free setup on medium or large-sized equatorial mounts. The inside of the optical tube is fortified with eight computer-positioned light baffles, and the primary mirror baffle tube and secondary mirror light shield are also highly baffled to ensure maximum image contrast.

Here is a fun and compact telescope that’s sure to inspire the whole family’s natural inclination to explore. The Orion StarBlast 4.5 Astro Reflector Telescope is no toy – it’s a real reflecting telescope that is wonderfully simple to set up and use! A perfect telescope for beginning amateur astronomers, the StarBlast 4.5 Astro Reflector is manufactured with the kind of quality you’d expect only to find in much more expensive models. Everyone in the family will enjoy using the StarBlast 4.5 Astro Reflector telescope thanks to its uncomplicated, simple design and high level of performance. The StarBlast 4.5 will give beginning amateur astronomers hour after hour of fun under the stars and also nurture their interest in the night sky, thanks to its exceptional, high-quality optics. In fact, the optics of the StarBlast 4.5 Astro Reflector are so good that it’s also a very popular choice for more experienced amateur astronomers looking for a compact and portable telescope to use as a grab-and-go alternative to larger, bulkier mounted models that require more setup time and maintenance. With its 4.5 inch aperture parabolic primary mirror, the StarBlast 4.5 Astro Reflector Telescope will wow the whole family with gorgeous wide-field views of the night sky. Fascinating craters and mountains on the Moon pop out in crisp detail through the pint-sized StarBlast 4.5 Astro Telescope, but the fun doesn’t end there. You’ll see more than just the Moon with this capable reflector. On clear evenings, the StarBlast 4.5 can provide pleasing views of giant Jupiter with its orbiting moons and Saturn with its stunning rings. Thanks to its precisely crafted, wide-field f/4 reflective optics and significant 4.5 inch (114mm) aperture, the StarBlast 4.5 Astro Telescope can reveal intriguing views of bright galaxies, distant cloudy nebulas, and sparkling star clusters for the whole family to enjoy.

A popular classic is now easier to use than ever before. With the computerized GoTo system, pushing a button or two is all it takes to find any one of over 42,000 celestial wonders. Internal stepper motors slew the telescope at up to 3.4 degrees per second right to your target, placing it directly in the eyepiece’s field of view. Using the intuitive menus on the hand controller, you will see more incredible sights than you ever dreamed possible. It will even take you on a guided tour of the best sights each month. A simple two-star or three-star initial alignment is all that’s needed to begin easy, accurate GoTo operation. The telescope features an 8″(203mm)parabolic primary mirror, which collects 73% more light than a 6″ scope, to take you way beyond the Messier catalog! And for the Moon and planets, the SVP 8’s 1000mm focal length (f/4.9) gives you the ability to resolve fine detail at high power. Includes 2″ rack-and-pinion focuser with 1.25″ adapter, an 8×40 finder scope, and two Sirius Plossl eyepieces. The stalwart SkyView Pro equatorial mount and steel tube tripod provide a stable platform that’s so smooth you’ll think the telescope is floating on air. The GoTo system requires an external 12-volt power source like the Orion Dynamo Pro. Some assmebly is required. One year limited warranty.