- Nd400 solid neutral density filter
- 2.7x filter factor, + 9-stop
- 2mm thick optical glass
ND400 Solid Neutral Density Filter 2.7X Filter Factor, + 9-Stop Fits Select 58-77mm RevoRing Products Darkens Entire Image Area Allows Reduced Shutter Speed Allows Wider Aperture 2mm Thick Optical Glass Double Sided 9-Layer Multicoating Water-Repellent Resistance Coating Magnetic Frame