Here is a high quality, black anodized aluminum Step Up Ring made in Japan. This is for mounting a 82mm filter or hood on a 72mm lens front ring. Step up/down rings like this are a good idea. Filters and hoods can be very expensive so these rings save you a lot of money. I like having the ability to use all of my filters and hoods on all of my lenses. I have many different sizes listed right now. Get as many as you need and pay only 1 shipping fee.
