As a newbie to DSLR and all I have been reading about the benefits of filters, it seems as though a polarized filter is a good first choice for the casual photographer, am I correct? Assuming I haven't misjudged that...is it something I'll "need" to have now (particularly landscape) @ WDW or should I wait? We have several lenses now and I'm getting a remote for night shots, but not sure about the filters. We leave for our trip in 12 days and I am really looking forward to testing our new camera (Sony A100-by the way) but obviously want to have the basics covered at least. thanks for the info
a circular polarizer is used to reduce reflection from non-metallic surfaces (glass and water particularly) and to boost saturation. they only work when used 90 degrees from the light source and reduce the amount of light going thru the lens by a certain factor. they are NOT general all purpose walk around filters. i would recommend good multi coated UV filters for the front of all of your lenses because they provide a measure of cheap insurance for the front of your lenses. they do nothing else with digital cameras. they do cut UV light with film, but that's not a factor with digital.