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Amazon.com : FILMCITY Professional Follow Focus for 15mm Rod Support, DSLR Camera & Shoulder Rig. With A/B Hard Stops, Flexible Gear Belt & Speed Crank. Precise Focus Adjustments, Adapts Small to Wider
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Amazon.com : NEEWER Mini Follow Focus with A/B Stops, Lens Gear Ring, 15mm Rod & Rod Clamp for Cinema Camera, DSLR/Mirrorless Camera, Compatible with Lens Diameter Up to 114mm, PG001 : Electronics
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