It's actually one of those "try and see" things in photography. Some auto-focus systems work with linear polarizers (it has to do with the patterns that the systems are trying to recognize to focus - are they trying to focus on vertical lines/areas of contrast, horizontal, diagonal, blah blah blah). Your camera -may- work with a linear polarizer without any problem. It will -definetly- work with a circular one. I've often wondered if the autofocus problem with linear polarizers is pronounced or not? Is it that when it effects the camera, the AF doesn't work noticeably or a scarier thought, what if it works "mostly". Would suck to think that your focus is "almost" on, but that it's focusing just slightly ahead of or behind your subject so that your image is never really tack sharp. Dunno that part. -=>Donald