reBlog: Bad Times with Bad Filters

... Here at Lensrentals we see lenses come back with scratched front elements every so often. Not a big deal, it happens. But since the Canon 24-70 f/2.8 Mk II lens came out we’ve seen a whole lot of them come back with scratched front elements. The weird thing was it was always in the center of the lens and often circular in pattern like the one below. (Ignore the dust, this front element had been taken out for replacement and sat on my desk for an hour before we took the picture.) ... Full article by LensRentals.com



via Ken Tam Photography Blog http://www.hkphoto.com/blog/2013/10/21/reblog-bad-times-with-bad-filters