I bought a fisheye lens a few years ago on an impulse. I didn’t really have a use for it and the time and the real reason was I thought it might be fun to play with at the time. It was too. The severe distortion created an interesting effect at first before I grew tired of it quite quickly. My wife in particular hated me using it on her. Close-ups of a person’s face can be very unflattering.
When I first bought the lens I used it mainly on my 20D. With a crop sensor the distortion is a lot less noticeable than on a full frame body such as the 5D. On the 20D it behaved much more like a super wide lens. Here’s an example from one of my images made with this lens, the EF15 f/2.8 Fisheye. The horizon in the original image was virtually undistorted and so easily corrected with the warp tool in PhotoShop.
