Linear Polarizer Filter

Linear Polarizer Filter
Should I get a circular or linear polarizing lens for my Canon 20D DSLR?

I am thinking of buying a polarizing filter to go with my zoom lens with my Canon 20D DSLR. When shooting: – I use AF most of the time – I can manually adjust the measurement system at times (trying to do it more often now) I am not sure if I should buy a linear or circular polarizer. Any advice?

Buy a circular polarizer. Do not waste your money on a cheap, no name of the filter. Buy quality – Heliopan, Tiffen, B + W, Hoya, Singh-Ray.

Rainbow in a polarizing filter