Lens Rentals:

If you’re thinking about buying a circular polarizing filter, you probably want to know which ones polarize the best and which ones the worst, right?

So what did we discover today? Well, several things, one of which is really useful. So I’ll get that one out of the way first, and then let this post just steadily deteriorate. If you are buying a circular polarizing filter because you want some circular polarizing, it doesn’t seem to matter much which one you choose; they all polarize like gangbusters.

This is a really nerdy article but the bottom line is interesting. I’ll keep it in mind next time I’m asked about polarizing filters.