H&Y Filter Swift Magnetic Variable Neutral Density (VND) Filter
The Swift Magnetic Variable ND filter wass developed for filmmakers to control depth of field and exposure with ease. The VND is designed with an end-stop to avoid the accidental appearance of cross-polarization when rolling. 2 grading ranges are available. Again, Simply Clip the VND onto the REVORING base to use it on lenses with different filter size.
The REVORING has been lucky enough to be featured by many publications, including the following: