any 72 mm should be fine to protect the lens/. Tinted ones will have certain effects while the seemingly clear ones dont do much. Most of us put on on the lens since its a 10 dollar piece of protection. If it gets scratched it can be replaced much cheaper then the whole lens.
I always keep a Tiffen Haze2 on my lens (yes, DVX cams ARE sensitive to UV). Hoya makes 2 or 3 different good, reasonably priced 72mm polas...(multicoated, Super multi-coated). Just make sure you white balance with the pola attached as some can have a slight greenish tinge due to the polarizing material used. Whatever filters you use, make sure that they are clean, as they are, in effect, the "front element" of your lens.
Ken
