The Z CAM eND Module for E2 Flagship Series replaces the removable clear-glass module in the camera's PL or EF lens mount and provides an electronically variable ND. The eND module has a minimum setting of 1.7 stops and can provide up to 6.7 stops of exposure adjustment in 1/3 of a stop increments without degrading your image. It provides you with exposure control without requiring you to add ND glass to the front of the lens. As the camera features an IR cut filter in front of the sensor, IR pollution is not an issue, even in the strongest settings.