iPhone 5 with different iSight lenses

Background: When I received my iPhone 5, it had a little scratch on the screen right of out of the box, so I called Apple to replace it.

Today I received the replacement iPhone 5 (and the transporter still hasn't come to pick up the faulty one).

Anyway, I noticed that the new iPhone 5 creates a lot more purple flare than the old one... I even checked the serial number to see if it when it was produced, and it is indeed brand new.

I'm guessing they have different lenses which indicates that the purple flare is indeed a problem that only occurs on certain iPhone 5 and people should be getting replacements...

So, have you noticed something like this between iPhone 5?