Background: I pooled my money, borrowed some from my parents, and sold my soul to an Indian restaurant for the rest of summer to get my hands on a 70-200 f/4L. (They only have me working one night a week ): )


Dilemma: It'd be foolish not to protect that investment with a UV filter. (I'm a believer in the UV on at all times philosophy, but lets not discuss that here and now). I've heard that low quality filters degrade IQ. That being said, I don't want that to be the case on my first L lens. I want good glass in front of the great glass. But how cheap is too cheap in the realm of filters? I know many swear by B+W filters which is great, if you can afford them. I can't afford a $70 or even $50 filter at the time. (Saving for a flash kit next). The max I can go is about $30.


There's a B+W UV Haze filter here, for about $30. But what's the trade off? IQ? Functionality?


Basically, I'm looking for a UV filter that enhances the pictures, without degrading IQ all that much. (I've never noticed IQ loss even with the standard Tiffen "UV protector" filter that Adorama gave me with the nifty fifty, but then again, I've never tested extensively).


Suggestions?


Thanks,


Rodger