So, I just got my 70-200 f4 L a couple a days ago. Used a blower brush ting now to clean of some dust. Blew on it, then gently brushed away some that didn't blow off. And guess what? The brush made a ~inch long scratch on the front element, not cool!
I brushed a blank CD now with the brush and easily made scratches in it. Is this normal? I thought I was very gentle.. Bought the brush from Penn camera around here. I'm not going to use the ting again at least.
Anyone how would this work with warranty or B&H return policy? I suspect not very well..
Maybe this will serve as a warning to someone else at least..