555 results for "Schmitt Cassegrain telescopes" between $25.00 and $4,000.00

· The 1.25" eyepiece holder (also known as a visual back) comes standard on the LX90 and the original LX200 telescopes. This adapter will allow you to use 1.25" eyepieces and accessories directly on the back of your SCT. It is also required when attaching the Meade Tele-Extender to the back of an LX200GPS.

This is a great upgrade to the Zhumell collimator that comes with the Dobs. It fits very solid into the focuser, and twisting the barrel engages the rubber o-rings to lock it in place for accurate, repeatable collimation with NO SLOP, which plagues cheaper collimators. The unit itself was dead-on collimated itself from the factory; no adjustments had to be done. Collimating the 10" Dob was a breeze with this unit. My only issue, is the lack of an on-off switch. To power it on and off, you have to...

Advanced Advanced telescopes are high performance, with exceptional quality. They may require more commitment to use in set-up time and technical savvy. Some advanced telescopes are easy-to-use but large and heavy. An advanced telescope is a purchase for a lifetime. Orion SkyView Pro 180mm Maksutov-Cassegrain Telescope Free Standard Shipping $1,599.99 Quantity: More Shipping Information Maksutov-Cassegrain telescope with a whopping 7.1" aperture and 2,700mm...

9.25" Schmidt-Cassegrain Telescope. CGEM Computerized Equatorial Mount. Celestron's premium StarBright XLT Coatings. Ultra Sturdy 2" steel tripod with Accessory Tray. Includes NexRemote telescope control software.

Buy Bushnell Cassegrain Telescopes at Ace Photo Digital for best Bushnell Cassegrain Telescopes offer.

INCLUDES TRIPOD. 499.00 WITHOUT TRIPOD (Call to order WITHOUT tripod. 4" Maksutov Cassegrain GoTo telescope, 1325mm Focal Lenght(F13), Starpointer Finderscope, Multi-coated lenses, 25mm(53x)and 10mm(133x)Eyepieces, Nexstar GoTo Hand Control with 4000 object database with automatic slewing and tracking, "The Sky Level 1" CD ROM and adjustable field tripod

The Lumicon Rich-Field Viewer takes your Schmidt-Cassegrain's f/10 optics and reduces them to f/6.3 for beautiful low power, wide-angle views. Its fully-coated reducing lens has a larger clear aperture and less coma than higher-priced focal reducers on the market, providing superb unvignetted views. The Rich Field Viewer's 2" inside diameter allows you to use it with your Lumicon 2" Enhanced Aluminum Diagonal. Included is an aluminum 2"-1.25" eyepiece reducer (threaded for use with your Lumicon ...

Achieve perfect focus with the Astrozap Astrocap with integrated Bahtinov Focusing Wheel! The Astrozap AstroCap also functions as cover for your dew shield or optical tube assembly when wheels are closed. Open the Astrocap focusing wheels with the turn of a thumbscrew when you are ready to focus an image. Close the wheels when you wish to image dark frames with your CCD camera. The Astrozap AstroCap is made of aluminum, and no tools are required! This AstroCap fits the tube assembly or aluminum...

Achieve perfect focus with the Astrozap Astrocap with integrated Bahtinov Focusing Wheel! The Astrozap AstroCap also functions as cover for your dew shield or optical tube assembly when wheels are closed. Open the Astrocap focusing wheels with the turn of a thumbscrew when you are ready to focus an image. Close the wheels when you wish to image dark frames with your CCD camera. The Astrozap AstroCap is made of aluminum, and no tools are required! This AstroCap fits the tube assembly or aluminum...

11-inch diffraction limited Schmidt-Cassegrain telescope Fully computerized dual fork arm altazimuth mount Ergonomic design--Comfortably move the telescope from location to location Proven NexStar computer control technology; GPS alignment 280 mm aperture, 2800 mm focal length

The spherochromatic aberration (different colors coming to focus at different points along the optical axis) and field curvature that afflicts the common Schmidt Cassegrain (SCT) telescope is difficult to eliminate entirely. The design goal for the APUS 0.36X compressor system was to eliminate lateral color completely and produce similar size blur spots for the entire field. This would result in the uniform appearance of stars throughout the entire image field. As can be seen from the geometric encircled...

FREE SHIPPING! Visual Back (1.25") - Screws Onto the Rear of Most Schmidt-Cassegrain Telescopes and Allows Use of 1.25" Diagonals, Tele-Extenders & Other Accessories

Shop for Telescopes from Telescopes.com! The Vixen VMC110L a 110 mm (4.33 inch) aperture modified Cassegrain f/9.4 optical tube. Its features include a curved vane secondary mirror spider to reduce diffraction effects and a correcting meniscus lens just ahead of the secondary mirror as its larger cousins the VMC200L and VMC260L incorporate.The Vixen VMC110L is a 110 mm (4.33 inch) aperture modified Cassegrain f/9.4 optical tube assembly . The VMC110L includes a built in flip mirror. With no corrector...

FREE SHIPPING! Lens Shade/Dew Cap for the Celestron C11 & Other 11.0" Schmidt-Cassegrain Telescopes