Front lens cap for CANON EF 400mm 1:2.8 L IS Ⅰ AND Ⅱ USM
Product model:Product model: Front lens cap for CANON 400mm 1:2.8 L IS USM LENS. Front lens cap for CANON 400mm 1:2.8 L IS Ⅱ USM LENS Usage: press down or lift up ， The hood be reversed and the cap can also be installed ，see the photo 8.