Best focus ring I have ever had for any of my lenses. The problem with the focus rings that come with my follow focus wireless or wired systems is A. They are usually too flimsy. B. With non-cinema lenses (PL mounts) that don't have hard stoppers, they sometimes won't let you focus all the way to infinity to focus forwardC. They are thin and not always durable. This focus ring solves all three of those problems, it sits snugly on the lens without worrying about over tightening. It also doesn't interfere with the lens hood and works great with the DJI Ronin RS-2. This is an essential item for those using a wireless or analog tracking focus system and a Sigma 18-35mm Art lens.
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