>polarizer and know they are not cheap but this would allow me to carry >just one polarizing filter. Dose anyone have expierience with such a >combination? I have one lens that takes a 77mm filter. Personally, I would rather not stick a 77mm filter on a 52mm lens because 77mm filters seem, IMO really huge, by comparison. If you will be using the 77mm most of the time and the 52mm on rare occasion it might be the way to go, but try it before you buy. I use one step up ring from 52mm to 55mm and I don't care much for it, but it saves some $$. If you have a lens hood, UV protector, step-up ring, and polarizing filter to juggle, you can wish you had 4 hands (or the right size filter). If your 77mm is a wide angle (missed the original post) some folks find a polarizer unsatisfactory because of variations in the broad expanse of sky. A quick check at B & H shows the 52-77 step up is $9.95 for generic and $29.95 for Tiffen. If you went with Tiffen, you're a long way toward getting a polarizer that fits the 52mm. There are also those Cokin slide-in filters to consider, but I don't know much about them. Good luck in your decision. Douglas Miller [EMAIL PROTECTED]