50mm 1.2L klunking sound

[AMCLARSSON]

Hi,

I bought a new lense for a new body and noticed this model (50mm 1.2L) has a slight mechanical/gear/klunking noise when turning the camera portrait and landscape. Doesn't happen with my other lenses.

This is the first prime L series i ha e had though. Lens works well, no issues apart from this. I've read on Ken Rockwell that this 'is normal'. Is it?

[AMCLARSSON]

Quick update. I have detached the lens and the noise is still there. It's sounds like a lone bearing bouncing down some marble steps.

[ebiggs1]

Mine is silent and has been since I bought it some time ago.  Yours should be, too. 

[Tim]

Hello AMCLARSSON, 

Based upon the noise you describe we recommend sending the lens into the service center for evaluation.  

You may wish to fill out an online repair request form at the following link here to setup your repair using our online service.

https://www.usa.canon.com/internet/portal/us/home/support/service-repair