A flip-mirror accommodates both an eyepiece and a camera at the same time. A lever lets you quickly change between astrophotography and visual observing.
The folding mirror is equipped with a helical focuser so that you can always have both the camera and the eyepiece in focus.
For connecting a second camera with a 1.25" barrel, you will need another adapter - which you will find in the recommended accessories.
Please note - Flip-mirrors are not suitable for use with Newtonian telescopes, as the focal point can no longer be reached. Their use on refractors or catadioptric systems - SCs, ACFs, Maksutovs - is no problem however.