T -adapter universal - 1.25 inches with these Celestron T adapters can be connected to small image reflex cameras (35mm) in the primary focus of a telescope or a spending. The adapter is inserted and fixed instead of the eyepiece in the 1.25 "Okular holder. In this way, you can photograph terrestrically, but also take moon and planetary recordings. For deep sky photography, you need an additional leaders The respective camera requires a T-ring.