Nikon C-PL405 40.5mm Slip-In Circular Polarizing Filter Nikon C-PL405 40.5mm Slip-in Circular Polarizing Filter - Nikon 1 Year Limited Warranty Compatibility: Nikon VR Lens: AF-S NIKKOR 600mm f/4E FL EDAF-S NIKKOR 500mm f/4E FL EDAF-S NIKKOR 400mm f/2.8E FL ED Filter Factor: 2 to 4 (1 to 2 stops) Rotating: Yes Effect: Eliminates reflections and haze and improves color and tonal saturation