The Celestron C9.25-A CGE OTA is identical in every way to the CG-5 except for the Mount Attaching Rail that it comes with. Like most Schmidt-Cassegrain telescopes, the Celestron 9.25" OTA has a focal ratio of f/10, lending itself quite suitable for either visual or imaging use. The XLT StarBright Multi Coatings leave the C9.25 XLT versatile for looking at many different celestial objects without the annoying optical disturbances caused by chromatic aberration The StarBright XLT coatings bring excellent light transmission from the corrector to the eyepiece ensuring as little light wasted as possible to produce the brightest images. Schmidt-Cassegrain designs use both corrective plates and primary mirrors (aspects of both refractors and reflectors), resulting in the rather slow f/10 focal ratio of this telescope. It also will accommodate many accessories that can change it, making it even more suitable for faster CCD imaging or viewing. This also assists in astrophotography because faster focal ratios are more efficient when taking exposures with larger pixel sizes since slower focal ratios tend to take too long often result in undesirable results (such as possible pixel blooming). For visual astronomy, a 6x30 finderscope, 25mm eyepiece eyepiece, 1.25" star diagonal, and 1.25" visual back are all included with the Optical Tube Assembly (OTA). This OTA is the very same quality as the tube assemblies that come with Celestron telescope packages, but without the mount. This is a great way to upgrade, without the need to buy the whole telescope system.

• The Celestron C9.25 SCT Optical Tube Assembly utilizes all the benefits of the StarBright XLT Coatings.
• The f/10 focal ratio makes it great for both visual and imaging use, especially when using the Fastar feature.
• Superior light transmission for high quality images.