EW-83E Lens Hood For Canon EF 17-40mm f/4L USM EW-83E
Canon EF 17-40mm f / 4L USM. Canon EF 16-35mm f / 2.8L USM. Canon EF-S 10-22mm f / 3.5-4.5 USM (2004). It is one of the most important accessories for each lens you own. You can also use a bank card.