ULANZI UURig R-77 RFS Rapid Filter System Camera Filter Mount Bracket Diameter 77mm

-[A New Rapid Filter System for ND Filters]: Engage & Disengage the Filter Any Moment You need the ND filters. This listing is for 77MM
-[Available in All Size & Step-Ups]: There are 49mm 58mm 67mm 72mm 77mm 82mm Rapid Filter mount for your choice.
-[Aluminum Alloy , Solid Structure]: Quality Assurance by CNC Process of Aluminum Alloy.
-[NONE Light Leak]: When the filter is closed, it is not only fast, but also light leak-free.
-[Wide Angle Compatibility]: Compatible with most prime lens and zoom lens.

-Wide-angle Lens compatibility
The RFS will vignette some wide-angle lenses.
-Prime lenses wider than 18MM
-Zoom lenses wider than 30MM
(These are estimated guidelines as we do not have the resources to test every lens and camera combo)