Ultra Wide and Fisheye

Dig out and dust off those really wide angle lenses.. Ultrawide lenses are defined as lenses with a focal legnth shorter than the shortest side of a film or sensor...For APS-C that is shorter than 15mm, for full frame that is 24mm. these lenses can be a lot of fun, but also hard to use at times as distant objects literally fade into the background... Be creative with these lenses