So after seeing Lex-ington mess around with polarizing filters and reading about the polarizer's purpose, I found myself rummaging through the never ending photography supplies at this pawn shop again. This time I ran across a few 49mm polarizers and I figured "Ehhh, what the hell is $5.00". So I bought them since they were apparently in good shape, one of which seemed to be pretty much new. I grabbed a Ambico R-8945. I noticed how the portion of the lens that you can rotate had a smoothness to its rotation (almost like a camera focus ring with ball bearings). I also grabbed a Hoya 25A, which I later saw was supposed to be meant for B&W photography, but ehh... who knows I might use it.
Well I went home to see what I had gotten by google searching and I came across an article regarding Circular Polarizers vs Linear. Considering both of these just say Polarizer and nothing about circular, It looks as though I've got just plain old polarizers. The article pretty much said that unless your camera is around the 70's area, don't bother using a normal polarizer and that a circular would be the way to go due to a normal one messing with your metering. Any truth to this, have a purchased something COMPLETELY useless for the camera or is there still just as much use if not the exact same with the two i've bought?