Do I need filters?

RichardRE wrote:

Thanks for the reply mbernard. Yes, I do shoot in RAW+JPG and use LR and PS. I was curious if I needed a stronger UV for high altitude (top of ski slopes). I do need the CPL and also wonder if a graduated ND is better on camera or via PS.

Again, thanks for taking time for the reply I still think with my Pentax MX hat on sometimes.

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-Richard
Pentax K-5 IIs, Sigma 17-50 f2.8 EX DC HSM, LX3, Pentax MX w/Pentax 40-80 & Soligor 80-200 f4.5 lenses, Lightroom 4.3, CS5