Spherical panoramas are created by stitching together photos to cover the inside of a spherical surface. A special tripod is used to rotate the lens about its center of perspective, a special point called the entrance pupil. The photos are mathematically projected onto a spherical surface, with the observer at the center of the sphere. Parallax is essentially eliminated making for a virtual reality effect. This effect can be particularly dramatic when there are both very near and far objects in the same panorama. Since the ultimate composite image is made up of many images, high resolution with zooming capability is possible. Bandwidth considerations do limit the size of the files that may be practically viewed on line, though. Below are some examples in Quicktime. Please note that these are never the less still large files and may take as much as 30 seconds to fully load.