With hugin you can assemble a mosiac of photographs into a complete immersive panorama, stitch any series of overlapping pictures and much more.

Among the Hugin workflow options, it is possible to correct exposure, Vignetting and White balance between photos; generate HDR, exposure fused or focus stacked output from bracketed photos; or use 16bit and HDR input data natively.

Photos can be digital or scanned, and taken with any kind of camera. A full range of lenses are supported, from simple cameraphones to obscure fisheye lenses. Hugin supports various output projections including a range of spherical, cartographic, and camera projections.

Hugin supports panoramas taken with multiple rows of photos, with or without bracketing. Bracketed photos can be handheld, taken using a DSLR bracketing function, or as consecutive panoramas shot at different EV exposure levels. Hugin can produce successful panoramas shot with cameras that always shoot using auto-exposure and auto-whitebalance.

Requirements:
OS X 10.5+
64-bit Intel