My 70-200 2.8 IS II comes in on Monday and I'm beginning to think maybe I should get UV filter for it? Not because of UV but more for protecting glass. I haven't used any filters for my 24-105 lens but am always super careful w/ my lens and make sure I don't drop it nor leave it w/out cap while it's not being used. Any opinion on what you guys use and which one to go with? I see Hoya at $70 vs B&W at $88 on Amazon. Any opinion would be great!