Canon CA2-4583 EF Contact
Genuine Canon EF lens contact assembly fits EF Extender 1.4X / 1.4X II, EF Extender 2X / 2X II, EF 14 2.8 L , EF 14 2.8 L II USM, EF 15 2.8, EF 20 2.8 USM, EF 24 2.8, EF 24 1.4 L USM, EF 24 1.4 L II USM, EF 28 1.8 USM, EF 28 2.8, EF 35 1.4 L USM, EF 35 2.0, EF 50 1.4 USM, EF 100 2.0, EF 100 2.8 Macro, EF 100 2.8 Macro USM, EF 100 2.8 L Macro IS USM, EF 28-105 3.5-4.5 USM, EF 28-135 4-5.6 USM, EF 35-350 3.5-5.6 L USM, EF 70-210 3.5-4.5 USM, EF 70-300 4-5.6 IS USM, EF 70-300 4.5-5.6 IS USM, EF 70-300 4.5-5.6 DO IS USM, EF 80-200 2.8 L, EF 100-300 5.6, EF 100-300 5.6 L, EF 100-300 4.5-5.6 Ultrasonic and many more. Made by Canon Japan.
Canon CY1-2428 Lens Mount
Genuine Canon lens mount for the EF 70-200 4.0 L USM, EF 100-400 4.5-5.6 L IS USM, and other EF lenses. Made by Canon Japan.
See the detail chart below for the proper place to measure your lens mount. Then choose from the most popular sizes.
We stock the most requested mounts 2.10, and 2.60. We can order other sizes available.
![Canon CY1-2428 Lens Mount Spec](https://uscamera.com/wp-content/uploads/2017/02/CY1-2428-mount-spec-300x140.jpg)
Canon YG9-0365 Reverse Gear
Canon YA2-4147 Lock Knob
Canon YB2-3354 Hood Shaft
Canon CY1-2180 Lens Mount
Genuine Canon lens mount for the EF 35 1.8, EF 35 1.4 L USM, EF 50 1.4 USM, EF 85 1.8 USM, EF 100 2.8, EF 70-210 3.5-4.5 Ultrasonic, 70-300 4.5-5.6 DO IS USM, EF 75-300 4-5.6 USM, EF 75-300 4-5.6 IS USM, EF 75-300 4-5.6 II, EF 75-300 4-5.6 II USM, EF 75-300 4-5.6 III USM, EF 75-300 4-5.6 III (DC), EF-S 18-135 3.5-5.6 IS, and the EF-S 18-200 3.5-5.6 IS lenses. Made by Canon Japan.
See the detail chart below for the proper place to measure the mount on your lens. Then pick from the sizes available.
Please Note. We stock the most common mounts, 2.10, 2.70, and can order other sizes available.
![](https://uscamera.com/wp-content/uploads/2017/02/cy1-2180mt-en-300x151.jpg)