Canon CY3-2202 Fixed Sleeve
Canon YA2-2347 Collar Screws
Canon YB2-1326 Collar Screw
Genuine Canon screw to retain all sizes of collar YB2-1328 for the EF 16-35 2.8 L II USM lenses and other Canon imaging products.  Package of 1 screw. Made by Canon Japan.
Canon YG2-2332 USM Assembly
Canon CY3-2052 Adjustment Ring
Genuine Canon focus adjustment ring for the EF 16-35 2.8 L II USM lenses. Made by Canon Japan. Fits only the model(s) listed. You will need to measure your ring where indicated in the detail chart. We stock the most common sizes. Use option to select from sizes available.
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This product has multiple variants. The options may be chosen on the product page
Canon CY3-2004 Scale Window
Genuine Canon scale window for the EF 16-35 2.8 L USM and EF 16-35 2.8 L II USM lenses. Made by Canon China. New tape is recommended when installing this window, available here.