Loose part inside EF 24-70mm F2.8L II USM

[golf4motion]

Hi, can you tell me from what part of the lens Canon EF 24-70mm F2.8L II USM is this plastic part? I find it between the rear glass and aperture unit.

[kvbarkley]

Looks like an eccentric bushing used for adjustments.

You might be able to look through the pictures here and find it:

https://www.lensrentals.com/blog/2013/01/24-70mm-f2-8-lens-teardown-comparison/

[golf4motion]

I find from where is this small part. Its on rear glass part

[jrhoffman75]

Check your Private Messages.

[golf4motion]

Good info but it says nothing about this small part. Do you know what is this part used for?

[kvbarkley]

I told you, it is an eccentric adjustment, used to make small changes in alignment that are then locked down.

[golf4motion]

Thanks!