Featuring high-quality Schmidt-Cassegrain optics, the NexStar 5SE is an ideal telescope for observing and photographing the wonders of space. The ultra-portable 5SE features a precision optical system with 1250mm focal length (f/10), with our premium StarBright XLT coatings and offers 56% more light gathering power than the 4 Inch model. The 5SE includes a camera control feature that allows you to remotely take a series of timed exposures using your digital SLR camera. Plus the tripod featuring a built-in wedge helps make short-exposure astrophotography a heavenly experience. Plug the optional SkySync GPS Accessory into NexStar's Auxiliary port and download data from orbiting GPS satellites for truly quick and easy alignments. The universe may be full of mysteries, but using the NexStar 5SE isn't one of them!