The Canon EF 8-15mm f4L is a unique full-frame fisheye zoom lens with a... I'm gonna say situationally useful... range of focal lengths from Very Fisheye to Slightly Less Fisheye. This is not a standard ultrawide lens: there is a ton of distortion, so you may not want to use it for group shots or lansdscapes, because everything is going to look wacky. It's in excellent condition, with clean glass and nice image quality. The hood has a small superficial crack which does not affect function; everything else looks great. Includes box.