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The Heliopan 49-52mm Step-Up Ring (#210) is a step-up ring permitting the use of 52mm threaded filters on a 49mm threaded lens. Constructed of matte black brass, Heliopan step-up rings are highly durable and longer-lasting when compared to aluminum rings.
Efficient solution for use of one size of filters with various sized lenses.
Matte black brass lessens chance of glare.
Rugged construction for ease of use.