Orion 7033 Precision Slow-Motion Adapter Adapter adds micro-motion altitude and azimuth control to any camera tripod Provides timesaving fine position adjustment for attached instruments Adapter attaches via a 1/4"-20 threaded post to any camera tripod Anyone who has swung their tripod-mounted telescope or binocular right past their target object will appreciate this adapter Great for birding use with spotting scopes and tripod-mounted binoculars