Here is my Sigma DP3M coupled with the Gigapan Epic 100 robotic pano unit. Works very well and is easy to setup and use. After calibrating (one time operation) I just preset the DP3M aperture, shutter speed, ISO, and focus (using AEL button) that I want to use for a particular pano, turn on the epic 100, set the upper left and lower right corner boundaries for the pano and it is done. The unit tells you how many shots will be taken and the rest is fully automatic (stand back and watch it snap all of the images). I dump the SD card to a desktop folder, point AutoPano Pro 3 to the folder, and it finds the pano shots (can be for multiple panos), organizes them, shows previews for each pano, and then you either edit or have Autopano go ahead and render the final pano files. Pretty slick and quick. So far I have been pleased with the results and the DP3M is perfect for this unit if you want very high resolution, large panoramas. If you are doing many, large panos extra batteries might be needed. We all know about the poor battery performance of the Sigma DPs and the pano robot will also chew up batteries after about 10-12 large panos (uses 6 AA batteries, rechargeable recommended).
There are 3 motors. One in base for rotation, a servo button pusher for shutter release (can be switched for electronic shutter release if supported), and a motor that tilts the camera support plate up/down.
Rear view of control panel.
Sample pano from the GigaSig. Stitched from 12 images. Click thumb below for quarter size image. Link will give you a dropbox full size pano.
FULL SIZE PANO (about 80 mb)
Another pano. Six image stitch. Click thumb below for quarter size image.