Celestron Skyris 274m Autoguider Powered by ultra-fast USB 3.0 technology, Skyris transfers data at the fastest possible speeds Skyris features acclaimed Sony CCD sensors for maximum sensitivity and low noise Skyris is capable of super-fast image download thanks to USB 3.0 connections. Even more impressive, Skyris Sony CCDs are capable of capturing exposures in as little as 1/10,000th of a second. Youll be able to capture brief moments of steady air to deliver the sharpest possible images Skyris also features a Celestron-designed camera body, which helps dissipate heat to minimize the effect of thermal noise on the CCD. Skyris cameras do not have an optical window, which makes cleaning your camera easier and ensures maximum light transmission with no risk of internal reflections With a 1.25" nosepiece and 10' USB 3.0 cable included, Skyris has everything you need to get started with lunar, solar, or planetary imaging