WonderPana Filter Holder for the Tokina Opera 16-28 f/2.8 FF Wide Zoom Lens (Canon EF & Nikon F Mounts) - Ultra Wide Angle Lens Filter Adapter Cell Phone arm for Selfie Starlite Stix or TT FACTOR Radius lights have a

FACTOR Radius lights have a solid build for durability and added heat dissipation

the configuration measured here is the cell phone setup with the 24mm extension tube and helicoid tube

All M42 Screw Mount Compatible Lenses

The 130mm Filter System Lens Adapter Ring attaches to the lens and adapts it to fit the Fotodiox Pro 130mm or Cokin X-Pro Series filter holders

WonderPana Filter Holder for the Tokina Opera 16-28 f/2.8 FF Wide Zoom Lens (Canon EF & Nikon F Mounts) - Ultra Wide Angle Lens Filter Adapter Cell Phone arm for Selfie Starlite Stix or TT FACTOR Radius lights have aDescription In The Box Specs Notes Highlights: Provides the ability to mount a variety of 145mm filters and more! Doubles as a hood to help protect your lens from damage, scratches, fingerprints and the elements Lightweight, aluminum alloy construction with a corrosion resistant, black anodized finish for durability Attaches to the lens securely as if it was a part of the lens itself, ultra wide construction to eliminate vignetting Limited 2 Year