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Step Up Ring that is magnetic on the back and threaded on the front?
Step Up Ring that is magnetic on the back and threaded on the front? I currently us the 72mm K&F Concept magnetic filters but I have an 82mm cpl that I would like to easily swap on and off of my 72mm setup. Has anyone ever seen a step up ring that is magnetic on the the back side that would attach to the mag filter that is already on the camera and is also threaded on the front side to attach the 82mm cpl filter?...
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