Panoramic Photos – Hugin

Hugin is the only free alternative to AutoPano Giga/Pro that I have found. In these cases the number of photos is smaller (and mostly horizontal). This tool is not as good as AutoPano in guessing the position of photos, but does a good overall job.

3 x 5 MP photos
3 x 5 MP photos
11 x 5 MP photo
11 x 5 MP photo
7 x 5 MP photo
7 x 5 MP photo