Focus Stacking with the Stackshot
You can use a StackShot 3 or 3X from CogniSys for Focus Stacking. A StackShot is a motorized rail that moves your camera forward and back. You can use this to capture slices for the stack instead of using the lens focus motor. Many photographers have very good older lenses without the CPU-controlled focus motor needed by ControlMyCanon. The StackShot is a great solution for this, and can still be used even if you have a CPU-controlled lens.
Configuring the StackShot for Stacking
See the Focus Stacking – StackShot help for more information on creating a focus stack with the StackShot.
Note: The Stackshot 3X requires you to connect the cable to the X Axis output.