This tutorial covers how to make a turntable in Maya.
Step two - Select your model
The number of frames option is how many frames it will take to do a 360 degree camera spin around the model. The fewer the frames, the faster the camera will be. 100 frames is good for a fast spin; 240 frames is good for a slower spin. Now click turntable. This will create a new camera from the old camera, group that camera, and rotate the group.
Now play the animation.