factory markings on lens elements?

[Bryan Carnathan]

Just checked my 70-200mm f/2.8 IS - and I don't see any rings. It is hard to know how to advise you on this one. If they are very faint, my guess is that you will not notice any image quality degradation. Take some shots and evaluate the results.


If you are concerned, you could exchange it or have Canon take a look. Peace of mind is worth something.

[chinochulo]

thanks bryan,


I also called canon, and they informed me that they the glass should not have any marking on it except for the coating.