Canon Utilities PhotoStitch is a freeware photo stitching application that's well-designed and professional.
Here are some screenshots to illustrate the features and user interface of this application:
Canon's own app for digital photography stitching purposes with various features. Screenshot of Canon Utilities PhotoStitch - 802px · 600pxCanon's utility for creating panoramic photos from cam images. Screenshot of Canon Utilities PhotoStitch - 1024px · 730pxCanon Utilities PhotoStitch: User interface. Screenshot of Canon Utilities PhotoStitch - 1024px · 730pxScreenshot of Canon Utilities PhotoStitch - Size: 1024px · 730px