77mm True-Match Vari-ND Filter The 77mm True-Match Vari-ND Thread-In is a single low profile filter with both True-Match Polarizing filters in the correct orientation for maximum ease of use and efficiency. The low profile ring prevents vignetting on most DSLR and Video Camera lenses. Step rings are available in common sizes to adapt the 77mm size to smaller lens thread diameters.
82mm True-Match Vari-ND Filter The perfect choice for DSLR cameras with high ISO settings, it allows the user to select the lens f/stop and camera speed independent of ambient light conditions.