The ultimate, new and high-quality Skywatcher 50 mm ED guiding telescope with Doublet ED lens with S-FPL53 glass. With a focal length of only 242 mm and an aperture ratio of f/4.8, it is very bright. The telescope is equipped with a very sensitive and precise helical focuser with a stroke of 18 mm. To connect your autoguider or a camera, it has a T2 thread connection and a 1.25″ plug-in connection for eyepieces. The back focus of the telescope can be extended from 20 mm to 60 mm by removing a 40 mm long sleeve. The T2 is also located here Thread and the 1.25″ plug connection. With a maximum diameter of 60 mm and a length of 220 mm or 260 mm with the sleeve, this telescope is also very compact. For an exact alignment of the telescope to the main telescope, this is equipped with guide scope rings, each with 3 adjusting screws with nylon tips. The bracket has the standard Skywatcher / Vixen standard finder shoe for attachment to the main telescope. This compact and very high-quality ED telescope delivers pinpoint fine stars and thus enables precise tracking. But it can also be used as a very high-quality viewfinder or lens for your camera or simply as a straight Richfield telescope when travelling. Scope of delivery: 50 mm F/242 mm optical tube Doublet ED lens with S-FPL53 glass 40 mm extension tube Finely adjustable 1.25″ helical focuser 1.25″ stop ring Guide scope rings with bracket and Skywatcher / Vixen standard finder shoe dust caps! Power supply and batteries are not included contain!