The iOptron SkyTracker Camera Mount (Black) is simple to set up. Just attach the unit to a standard camera tripod. Then slide and lock your digital camera into the saddle. Align SkyTracker to Polaris, the North Star, using the included dark field illuminated polar scope. Then turn on the motor and it keeps your camera tracking at the same speed the earth rotates. The unique DC servo motor keeps your camera in motion to avoid star trails and allows you to take long exposures for beautiful images of the night sky. SkyTracker runs on 4AA batteries for portability at any location.