Plastic gear ring for follow focus 6pcs different size a set Size: for focus ring diameter from 60mm to 116mm, adjustable; if your lens focus ring is smaller than 60mm, please contact us, we have solution for this; Outer ring size: 120mm Module: 0.8 Color: black Feature: Hard engineering plastic material. Totally fits the movie industry standard. Easy to install, and compatible with follow focus.
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