michael_tommerup

<p>It works fine with a Canon Eos 1D mrkIIN and a Canon Eos 1DmrkIII but with a 5D it backfocus.The 5D have no problems with Canon 24-105 f/4 and Canon 100mm f/2.<br>

So it is true it cant be rechiped.<br>

The lens have been replaced with the newer DG model.<br>

The lens was bought in 2005.</p>

<p>Do anybody now if this lens can be rechiped, i have read that it cant not?</p>

<p>Regards<br>

Michael</p>

I dont have to use a torch to see the dust, it is quite easy to see.

Ther is allmost none at the front element

Thank you all for your help.

Does anybody with a new Canon L lens that have a lot of dust in it?

The ones I think about are those that are moist and dust resistant.

Thanks for your quick answer.

I have uploaded a pic. Where you can see most of the dust.

I have a Canon 85mm f/1.2II that I bought 4month ago.

At the back of it. The side that goes into the camera, I can see about 10 dust

particles, is that normal?

Regards

Michael T