Now, every imaging session can be as productive as possible with the Nautilus Motorized 4x2" Filter Wheel. Not only does it ensure automatic and trouble free filter transitions for your monochrome imaging setup, but it saves precious imaging time. To easily transition filters for tri-color, RGB or LRGB imaging, just load up to four filters into the Nautilus 4x2" and use your imaging software to change filters automatically. Let your PC do the work while you grab the separate exposures you need through each filter. Versatile threading and adapters provide several attachment methods, including T-threads for focusers with camera adapters, a removable 2" nosepiece to allow maximum field illumination to the camera, and a removable T-thread adapter for camera attachment.

The new Nautilus motorized filter wheels are the best way to ensure automatic and trouble free filter transitions for your imaging setup. To easily transition filters for tri-color, RGB or LRGB imaging, just load up to seven filters into the Nautilus 7x1.25" and use your imaging software to change filters automatically. Versatile threading and adapters provide several attachment methods, including T-threads for focusers with camera adapters, a removable 1.25" nosepiece to allow maximum field illumination to the camera, and a removable T-thread adapter for camera attachment.

A T-ring converts a camera's mount to a standard T-thread. All camera adapters, including Celestron and Meade T-adapters and universal camera adapters, will fit this T-thread. Call for advice if your camera is not listed.

Use as a guide scope with a CCD autoguider. Multi-coated 80mm f/5.0 optics deliver bright, wide-field images. Sold as optical tube assembly only, no accessories. One-year limited warranty

The Orion ShortTube 80-A Refractor Telescope (for "Astronomy") is an upgraded version of our ever-popular ShortTube 80. Now improved with fully multi-coated optics and a soft carrying case, the "little telescope that could" is better than ever!

You’ll be delighted with beautiful views of the night sky when using the SkyView Pro 8 Equatorial Reflector Telescope. You can go way beyond the Messier catalog with this telescope! Thanks to its substantial aperture, the 8” SkyView Pro gathers enough light for pleasing views of faint and elusive deep sky objects which you simply cannot detect with smaller diameter instruments. When aimed at the Moon or planets of the solar system, the Orion SkyView Pro 8 Equatorial Reflector Telescope’s 1000mm focal length (f/4.9) gives you the ability to resolve fine detail at high power.

This high-performance 102mm triplet apochromatic refractor telescope packaged with a precise Sirius EQ-G GoTo mount is sure to please any astronomy enthusiast.

With the Sirius EQ-G mount and GoTo hand controller you'll experience effortless computerized navigation to 42,900 celestial objects with a few button pushes on the illuminated hand controller. Internal dual-axis stepper motors move the telescope at up to 3.4° per second right to your target object, tracking it while you observe or photograph it. Periodic error correction (PEC), a port for an autoguider, and an illuminated polar axis scope for accurate polar aligning are all standard features, designed to ensure successful astroimaging adventures!

Maksutov-Cassegrain telescope boasting a big 7.1" aperture and 2,700mm focal length (f/15) excels for high-power solar system use.

It's no wonder customers heap 5-star ratings on these "gentle giants." For not only do their jumbo-sized optics and uncomplicated design bring a "new level of joy to simple observing," raved Astronomy magazine, but they're also the most affordable quality Dobs on the market. SkyQuest XT Classics aren't just good bang for the buck, they're a supernova of telescope value!

The SkyQuest XT10 continues its dominance over all other 10" Dobsonians worldwide by virtue of its dazzling optics, a contemporary new design, and most exciting of all, the ability to locate any of more than 14,000 fascinating celestial objects with pushbutton ease! And it's now upgraded with a 2" Crayford-style focuser for smoother, more accurate performance.

Maybe the idea of a big-aperture telescope appeals to you, but the portability issue has kept you on the fence. Well you can hop off it now because we’ve got the perfect solution — the "space-saving" Orion SkyQuest XX12i IntelliScope® Truss Tube Dobsonian. It’s a deep-sky observer’s dream telescope, offering jumbo 12" (305mm) Pyrex parabolic optics of 1500mm focal length (f/4.9); a stylish, reduced-weight base outfitted with computerized IntelliScope object locating technology; and a sturdy, eight-truss tube design that disassembles in about a minute into compact, easily portable components. And at its price, the XX12i ranks as the #1 killer telescope deal of the year!

The XX12g telescope optical tube employs a rigid 8-pole truss design that virtually eliminates flexure observed in 6- and 3-pole collapsible tube designs. Stability of the assembled XX12g Dobsonian base is enhanced by its 1-inch thick composite wood base panels, which are laminated with water-resistant black melamine.

If the idea of a big-aperture telescope appeals to you, but the portability issue has kept you on the fence, you can hop off it now. We've got the perfect solution - the SkyQuest XX12i IntelliScope Truss Tube Dob. It's a deep-sky observer's dream scope, offering jumbo 12" Pyrex optics (f/4.9); a stylish, reduced-weight base outfitted with IntelliScope object location technology; and a sturdy truss tube design that disassembles in about a minute into compact, easily portable components.

An enormous yet conveniently portable 14" aperture truss-tube Dobsonian telescope equipped with fully motorized GoTo object location and automatic tracking of over 42,000 celestial objects.

Colossal 14"-aperture parabolic optics open up the heavens to new visual adventures!Enhanced reflectivity (94%) aluminum mirror coatings for brighter images14" optics collect 36% more light than a 12" mirror, and an amazing 96% more

SkyQuest XX14i, Shroud, and Case Set PackageEverything you need for optimized use and transport of the 14-inch XX14i! Traditional 8- truss design offers superior rigidity compared to other designs in this category IntelliScope computerized object-l