The FotodioX Bay 60 to 77mm Aluminum Step-Up Ring permits the use of 77mm threaded filters on lenses with a Bay 60 filter mount. This step-up ring features an aluminum-alloy construction that has a corrosion-resistant, matte black, anodized finish for durability and to minimize reflections.
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I'm looking to add some Var ND while using Hasselblad lens. and thought this Fotodiox might be a good one to try. It's ok but I expected to hear a satisfied snap sound when screws it in. May be another brand has a same issue?
perfect to ensure you take the outmost of all your filters when you change systems in the lenses, bay vs regular type