Retaining Rings
Amazon.com : 10pcs M12 Lens Locking Fixed Clamping Ring Plastic : Electronics
Telescope Accessories Lente Telescopio 90mm Objective Lens Holder And Clamping Ring Refrator Abs Plastic Telescope Mirror - Telescope - AliExpress
Clamp-on Ring (75 to 82mm)
Fanotec Metal Ring for Lens Ring Clamp | Fanotec
Versa² Red/Black Clamp Ring | Specialty Archery
SmallRig Clamp-on Lens Adapter Ring (114mm-80mm/85mm/95mm/110mm) 3408
Nodal Ninja F6220-1 Lens Ring Clamp for Sony 18-55mm F6220-1 B&H
Videolinea system - ARRI Still Lens Clamp-On
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 (Silver) :
Retaining Rings
Canon clamping ring / threaded adapter ring filter adapter 60 mm | eBay
Cavision Clamp-On Lens Adapter Ring Set (85 to 75 / 95mm)
Genustech G-COAR 95 Clamp-On Lens Adapter Ring for GPMB G-COAR
Nodal Ninja F6402-1 V2 Lens Ring Clamp for Sigma 15mm F6402-1
Spacers and retaining rings - Tubemount - Optomechanics - Products - Mounted lenses - Lenses - Comar Optics
Sigma 162mm Clamp-On Ring - Duclos Lenses
Vintage Tiffen HCE 44.5mm Clamp-On to Series VII 7 Filter Lens Adapter w/ Ring | eBay
Retaining Rings
Amazon.com : SmallRig F60 Follow Focus for DSLR and Mirrorless Camera Lenses, with Non-Damping Design & Forward/Reverse Switch & A/B Stops, Included Lens Gear, Gear Ring, 15mm Rod & Rod Clamp -
SmallRig Clamp-on Lens Adapter Ring (114mm-80mm/85mm/95mm/110mm) 3408
OConnor Step-Down Clamp Ring (150-95mm) C1243-1125 B&H Photo
