Hi everyone!
I have a serious problem, my lens has a tiny scratch just in the middle of it, it is not bigger than 2mm but is visible on the footage.
So is there any DIY solution to remove it? Or better send it to a pro service centre? I can imagine how much they will charge for replacing glass.

Krystian, sorry to hear about your lens.
As for DIY, don't even think about it, just send it to Canon.
Canon can relpace the front lens for less than a new one would cost,
and if you try a DIY you will just end up buying a new lens.

Terry