Kase

Magnetic Neutral Density Filter 64x Filter Factor, 6-Stop Darkens Entire Image Reduce Shutter Speeds, Widen Apertures Optical Glass, Multi-Coated Surfaces Tempered, Shock Resistant Magnetic Lens Adapter Ring Fits Lenses with 67mm Filter Threads For Kase Wolverine Magnetic Filters Steel Construction

UV Filter/Magnetic Lens Adapter Ring Fits Lenses with 67mm Filter Threads Holds Other Wolverine Magnetic Filters Absorbs Ultraviolet Light Reduces Bluish Cast of Daylight 1x Filter Factor, No Exposure Change Optical Glass, Multi-Coated Surfaces Tempered, Shock Resistant Steel Construction