Hi Everyone, In short, just wonder how many out there use a good (high-end) multicoated UV/NC filter on ALL their lens' for protection? My point....is it really worth it? Thom Hogan claims using UV/NC filters for protection as a gimmick. Are front elements expensive to replace? Myself, I've dropped a good amount of money on NC and UV filters for protection over the years. I believe filters have an application. I'm starting to second guess myself. I've heard scuttle about IQ degradation using filters UV protection, others claim it doesn't degrade anything or if it does it's too insignificant. I've read others claim that keeping the lens hood attached and using caution is all that's needed. My two cherished workers are the nikon 24-70 2.8, and after months of saving, and selling my VR I, I finally got the 70-200 VRII. For the most part, I do people shoots in and outdoors, really nothing in harsh conditions, however, for me these lens' were big investments as I don't make my living with photog. I did some closely controlled comparisons using UV/NC filters on my 24-70 2.8, and the 70-200 VRII both on and off. To be honest, the results were slight (close raw crops in NX2 and LR3). Oh well, decisions, decisions....to attach and leave on or not to attach.....jeeeeezzzz!!