chapjohn wrote:
I would suggest a CPL because it enhances the sky and the colors a little. Don't get confused about the direction of the sun when using a CPL. Turn the dail until you like the image, then shoot. It seems that using a CPL only when you are 90 degrees from the sun is limiting the capability of great piece of equipment.
Sorry but I disagree with the information in this post. A polarizer works best when the sun in the focal plane of the camera and with a bright, cloudless sky. As these conditions decrease, so does the amount of polarization. In short, the sky will not be as dark and reflections will not be as reduced.
The comment about 90 degrees does not limit the capability of the filter but maximizes it. Ultimately, looking thru the filter, whether or not it is on the camera, tells you how well the filter is working. Word of caution: do not wear polarizing sun glasses. Things will eventually become black when the two filters are perpendicular to each other.
Polarizers are great accessories when used properly.