Genuine Canon rear barrel assembly for the EF 24-105 4.0 L IS USM lenses. We stock the most common sizes and can special order sizes not in stock. Made by Canon Japan.
Use chart below to measure your rear barrel then choose from the sizes available.
Genuine Canon guide collar for the EF 28-300 3.5-5.6 L IS USM lenses.
First, measure the collar you have and find the appropriate size using the chart below.
Use option to choose from available sizes.
Genuine Canon lens mount for the EF 28-90 4-5.6 III lens. Made in Taiwan.  You can see the "Made in Taiwan" just above the lenses electrical contacts.
Genuine Canon replacement index ring (body) for the EF 50 1.8 II lenses. The most common reason to replace the index ring, the lens mount is damaged. Made by Canon Malaysia.
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