First question... just to make sure I've got this right... I've got a Nikon D40, with the "kit" lenses (18-55 55-200).... Those are both accept a 52mm filter correct? Secondly, in my reading, I'm seeing a lot of contradicting information. One of the most common one is the need of a UV filter. One side says its critical to protect your lenses... the other side, says they are a waste of money and do nothing more than destroy the quality of your shots. Thirdly, there seems to be a discrepency in what filters you should use. It seems the only one that people universally suggest using is a circular polarizer... all the rest are junk and the results can be acheived PP anyway. Any thoughts on this? Finally, the age old "price vs. quality" question. Prices for filters seem to go from about a buck to $300... with that large of a degree in difference, what is the compromise point where spending more stops giving you that much better results. I have no desire to buy a $1 filter, but the same holds true for a $300 one. It seems there is a $30 price point in which the filters seem to get good reviews, any truth to this, or are the reviews mostly by people who don't know what they are talking about and are simply trying to justify wasting $30 on a crap filter that they could have bought for $1?