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

A good accurate collimating tool if your 1-1/4 inch adapter has a reasonably snug fit. The self centering adjustment is rather stiff and requires some effort to get the collimator snug in the focuser. I use only the 1-1/4" model. Otherwise you have to use the focuser eyepiece adjustment as well to get a good snug fit and the accuracy may be slightly off. Somewhat better results than with my Meade laser collimator.

GPS - LX90 can do more than track satellites. It talks to them as well. Turn it on and the built-in Sony GPS sensor immediately determines your precise date, time and location. AutoAlign then uses this info to align your scope for a tour of the most spectacular sights in the universe. Easy align - LX90s are smart scopes that know the night sky right out of the box. Easy Align picks two alignment stars for you and places them right in your viewfinder. Just center them to fine tune your alignment and...

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...

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.

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...

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 ...

Farpoint Dovetail Plate System for Meade SCT Telescopes, Curved Blocks and hardware for the Meade SCT telescopes. Mounts to existing holes on the telescope tube. Our dovetail plates are compatible with Losmandy style dovetail accessories! Farpoint dovetail plates have machined fillets, chamfered corners and edges for a finished look. A short taper at each end of the dovetail portion of the bar makes insertion into the saddle easier. To reduce weight and maintain rigidity, the aircraft grade aluminum...

Computerized GOTO function with high accuracy and instant localization of more than 43,000 astronomical objects Features the "Stardot" Finderscope, two Plossl 10mm and 17mm eyepieces, metal tripod, astronomical prism, moon filter Includes two carrying cases, and instructions for use and a Cd-Rom Functions with 8 AA batteries Multi-coated optics

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...

Observing with Meade 7" LX200GPS Maksutov-Cassegrain Telescopes 0715-50-30 & 0715-50-31: Most users find that observing through the Meade 7" LX200GPS-SMT is a new experience, with lunar, planetary, and deep-space images approaching those normally obtained, at higher cost, only through a fine apochromatic refractor . Under favorable atmospheric conditions, the surface of Jupiter resolves into a treasury of extremely fine detail, with numerous of the planet's belts showing structure, color, and discontinuities...

If your telescope is less than a few years old, check the style of the back cell to see which version of the Feather Touch SCT Micro Focuser you need: If your telescope has a flat back (left picture), you need the standard "C" Micro Focuser. If your telescope has a triangular pattern on the back (right picture), you will need the "CPC" version of the Micro Focuser.

Kendrick dewcaps are constructed of black ABS plastic and are all felt lined for maximum absorbtion of moisture and baffling of stray light. The cap is attached by wrapping it around your Schmidt Cassegrain telescope just below the corrector plate ring. The two outside ends are then attached to each other using the sewn on velcro. A rubber strip is supplied that must be attached along the bottom of the dewcap where there is no felt. This provides a friction fit so that the dewcap stays in place once...

Keeps Dew Off Your Scope's Corrector Lens With Dew Zapper, you'll never have to stop observing to remove condensation from the front plate of your Schmidt-Cassegrain or Maksutov-Cassegrain. An unprotected corrector lens will radiate heat, quickly cooling to below ambient air temperature, allowing dew to form. Dew Zapper gently replaces lost heat, bringing the temperature of the corrector lens back above the dew point. Dew can't form, and you never get "heat wave" disturbances like those caused by...

Keeps Dew Off Your Scope's Corrector Lens With Dew Zapper, you'll never have to stop observing to remove condensation from the front plate of your Schmidt-Cassegrain or Maksutov-Cassegrain. An unprotected corrector lens will radiate heat, quickly cooling to below ambient air temperature, allowing dew to form. Dew Zapper gently replaces lost heat, bringing the temperature of the corrector lens back above the dew point. Dew can't form, and you never get "heat wave" disturbances like those caused by...