The telescope optics: This compact Skywatcher Maksutov Cassegrain telescope with its high-resolution, multi-coated optics is suitable for medium to high resolution for discovering surface details on the moon as well as for observing planets and double stars. But it can also be used very well for nature observation. Scope of delivery: 102mm Maksutov Cassegrain telescope red dot finder 1.25″ star diagonal eyepieces: 10mm & 25mm! Power supply and batteries are not included in the scope of delivery!