There is a line of thought (to which I subscribe) that goes something like this:
 
Why would you wanna put a (relatively) cheap shard of glass (eg. a UV filter) in front of an expensive optical intrument (ie. lens)?
 
UV filters achieve bugger all optically (if atmospheric haze is an issue then use a polariser when required), and as for lens protection ... that's what that little plastic cap is for (... and so is the lens hood, whilst shooting) 
 
 
There is a theory that UV filters were 'invented' by photo retailers to boost their margins, ie. something they can flog to unsuspecting consumers. 30 bucks here on a camera bag, 20 bucks there on an UV filter ... makes all the difference for their bottom line when they're not making much more on the cameras themselves. 
 
 
	
		
			
			
				My advise Paul, don't waste your money (and the performance of your pretty good lens) on a UV filter. No way you'd find me putting $30 shards in front of my $2000+ lenses 
 
			
		 
	 
 slt
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And for some good reading on Nikon matters see 
Thom Hogan. He mightn't take the best photos, but he bloody well knows his gear!
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