Canon EF 500mm f/4L IS USM
This Canon EF 500mm f4L IS USM lens is pretty huge, but it's a heck of a supertelephoto: fast focusing, an effective stabilizer, and truly professional-quality image quality at all apertures. You probably don't want to tuck this into your camera bag just in case- it weighs 4.5kg all on its own, without the case- but if you've got a good reason to be hauling around a 500mm f4 lens, this one will definitely do the job. In excellent condition, with light internal dust, no hazing. Includes original hood, lens cap and hardcase (with key!).