Urth Magnetic ND1000 Plus The Magnetic ND1000 Filter Plus+ from Urth brings ease to your creative flow with a convenient stackable, magnetic system. With less light entering your camera, you can also use wider apertures in bright light for a beautiful shallower depth of field effect without overexposing images. The Plus+ range features 20-layers of nano-coating providing easier cleaning and better protection against water, oil, and scratches. These layers also provide a higher maximum light transmission and a more consistent transmission curve for truer light reduction. It offers beautiful depth of field with wider apertures. Cut 10 f-stops for stronger long exposure. It provides master long exposures even in bright light. Attach the adapter once, and then switch filters with ease. The consciously designed ultra-slim rim avoids vignetting. With B270 Schott optical glass, it is coated with a 20-layer nano-coating for truer light transmittance, better protection, and easier cleaning. This magnetic filter also features a screw-mount base so a magnetic adapter ring is not required.