There are lot of accessories which will enhance the image or improve the quality of the image. In a normal telescope there are one or two standard eye pieces. However if you need to increase the magnification or to get the detailed view one needs to use additional eyepieces. The magnification of the object is determined when the focal length is divided number on the eyepiece. Power tank is a must when one takes telescope outdoors. Neximage software helps to control the telescope from your laptop. There are loads of additional accessories to enhance the usage of telescope.