Canon YA2-2347 Collar Screws
Canon YA2-8001 EF Screws
Canon YB2-0019 Window Tape
Canon YB2-0033 Zoom Collar
Genuine Canon Zoom Collar for the EF 16-35 2.8 L USM, EF 16-35 2.8 L II USM, and EF 17-40 4.0 L USM lenses. Package of 1 collar. Made by Canon Japan. The screws used to retain this collar are in stock here.
Canon YB2-0943-399 Guide Collar
Canon YB2-1080 Distance Window
Canon YB2-1233 Scale Window
Genuine Canon focus scale window for the EF 70-200 4.0 L IS USM lens. Sold as pictured. Made by Canon Japan. New double-sided tape is recommended when installing this window, go here.
Canon YB2-1248 Shaft Screws
Canon YB2-2090 Scale Window
Genuine Canon scale window for the EF 70-200 2.8 L II IS USM lenses. Made by Canon Japan. We recommend using new tape when installing this window, available here.
Canon YB2-3788 Lens Collar
Canon YB2-5697 Shaft Screw
Canon YF2-2027 Guide Key
Canon YG2-2062 Power Diaphragm
Genuine Canon power diaphragm assembly for the EF 24-70 2.8 L USM lenses. Made by Canon Japan. Unfortunately, this part has been discontinued and is no longer available.
TechNote. Many times the issue you may have with your lens points to the power diaphragm unit, when actually the FPC (flexible printed circuit) has broken and needs replacement. In stock here.
Canon YG2-2062-100 Power Diaphragm Flex
Canon YG2-2332 USM Assembly
