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Step Down Ring 52-50mm. Allows the use of 50mm filters and accessories on a lens with 52mm filter threads.
Step-Rings
Please note that step rings may vary in country of origin and style between batches, image shown is indicative only.
Step-Up & Step Down
The first size indicates the male thread at the camera end - the second size indicates the female thread. If the filter you want to attach is a bigger diameter than the threads on your lens then you need a Step Up ring, if the filter you want to attach is smaller than the lens you want to attach it to then you need a Step Down ring.
