An 8mm fisheye lens, also made by Nikon, has proven useful for various scientific uses because of its equidistant (equiangular) projection, in which distance along the radius of the circular image is proportional to zenith angle. [edit] Other uses Some planetariums use a form of fisheye lens to project a two-dimensional film image of the [...]
Archive for April, 2008
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Posted in Uncategorized on April 19, 2008 | Leave a Comment »
whateverpost
Posted in Uncategorized on April 19, 2008 | Leave a Comment »
The structure of the mammalian eye owes itself completely to the task of focusing light onto the retina. This light causes chemical changes in the photosensitive cells of the retina, the products of which trigger nerve impulses which travel to the brain. [edit] Retina The retina contains two forms of photosensitive cells important to vision—rods [...]
