This is another shot taken using my home-built Star Tracker, the same tracking mount that I used to create the all-night time-lapse from the summit of Haleakala on Maui. For this picture, I tilted the tracker so that the rotation axis was pointed towards Polaris and thus parallel to Earth's rotational axis. I set the speed and direction so that when the tracker is turned on, the camera's field of view would follow the movement of the sky allowing long exposure shots of the stars.
The field of view here covers most of the constellation Sagittarius and the central part of our Milky Way Galaxy. This part of the sky is rich with targets for small backyard telescopes. Many of the best can be seen in this photo. It was pretty awesome being able to see this part of the Milky Way so high in the sky while in Maui (compared to Oregon at least).
Technical info about the image:
Object: Sagittarius and the Milky Way
Mount: home-made star tracker
Imaging lens: Nikon 50mm 1.4G stopped down to f/4.0
Imaging FL: 50mm
Imaging camera: unmodified Nikon D700
Lights: 80x60s (1h 20m) at ISO 1600
Guide Scope: unguided
Processing: images stacked with Deep Sky Stacker with final processing in Photoshop CS5.