Vizelex ND Throttle Lens Mount Adapter - Compatible with Hasselblad V-Mount SLR Lenses to Fujifilm G-Mount Mirrorless Digital Camera with Built-In Variable ND Filter (2 to 8 Stops) Flash Bracket Optical Grade Glass Thread Size

Optical Grade Glass Thread Size 145mm x 1mm Standard Thread Product Dimensions 5

4 x 72 in (3 x 1

977) Leica Thread Mount Lens Body Mount Fujifilm G-Mount Digital Cameras Product Dimensions 3 x 3 x 0

4-Pin XLR DC Power Output (60W) for Powering Accessories

you can attach your GoPro and regular camera to motorcycle handlebars

Vizelex ND Throttle Lens Mount Adapter - Compatible with Hasselblad V-Mount SLR Lenses to Fujifilm G-Mount Mirrorless Digital Camera with Built-In Variable ND Filter (2 to 8 Stops) Flash Bracket Optical Grade Glass Thread SizeDescription Specs Compatibility Notes Product Highlights: Mounts a Vast Range of Vintage Workhorse Lenses to Fujifilm G Mount GFX Cameras Built in Variable Neutral Density Filter ND4 256 (2 8 stops) for easy and convenient image control over any lens that you attach Enhanced craftsmanship and high tolerance construction for demanding professionals; infinity focus or beyond guaranteed Precise fit, solid all metal connection with chrome plated brass