It comes up in discussion from time to time but I am always amazed at how many people use UV filters for protection. Using a filter is one thing.. but using CHEAP crappy ones are another. I won't say where or who, but I recently saw an 85mm f/1.2L being shown with a Quantaray UV filter on it. WHY would you go out and buy a $1,600.00 lens and throw a piece of $18.00 crap in front of it to shoot with?
A friend of mine who shoots Nikon was telling me that he finally took the UV filter off of his 70-200 DX lens because of AF issues. He told me that without the filter, it focused much faster and more accurately. Most likely because the flat glass filter was causing a washout condition (subtle lens flaring) and played havoc with his AF sensors. Ugh...
Ok.. I'm through ranting.
