The Sensei 49-52mm Aluminum Step-Up Ring permits the use of 52mm threaded filters on lenses with 49mm filter threads. It features a lightweight, aluminum alloy construction that has a corrosion-resistant, black anodized finish for durability.
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Good quality. Perfect build. Feels study and strong and doesn't slip or spin off during use. Amazing product
Fits well and seems to be made well, overall a great deal.
I used close up lens for restoring old photos. These rings help me to use my old close up lens.
Allows me to atach pericials smothly. Does not help with typing on small keypad!
Works great for my 49mm threaded lens to use with the 52mm polarizer I use with another lens!
Tried a bunch and found the right one. This is it.
Works well. No binding. Easy to remove if you don't tighten down too much.
I'm sure the B&W 49-52 step-up ring is great--I love their filters, after all. But this one's less expensive partly because it's aluminum, and partly because it's made on the other side of the globe. But it works fine, the threads are clean, and I can't find any reason to fault it. Great product for a very low price.
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