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Enjoy Extended Returns thru Feb 1, 2017!
You have until Feb 1, 2017 to return or exchange items purchased between Nov 1, 2016 and Jan 1, 2017. All other standard return policy conditions apply.
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iDC's Follow-Focus Wheel O-Ring is a tough, user-replaceable ring that fits on SYSTEM ZERO and SYSTEM ONE gearless wheel assemblies, its rubber surface gripping the edge of a focus ring on compatible lenses. In contrast to gear-based follow-focus systems, the O-Ring and adjustable wheel are one-size-fits-all.