With digital SLRs it has become very easy to combine or stitch multiple pictures together to create high resolution images. For example, the picture below shows a composite image of the Conservatory of Flowers in San Francisco stitched together from three source images. The three individual source files were taken with my Canon 5D mk II and are roughly 21 megapixels in size (5616 x 3744). However, they can be combined in software to create a 40 megapixel stitched image (7229 x 5623). Right now, ...