Calumet 52mm ND16x SMC Ultra Slim Filter

The Calumet ND16x SMC Ultra Slim Filter reduces incoming light by 4 stops, enabling significantly longer exposures and wider apertures in very bright environments. Constructed from Japanese AGC glass with 28 multilayer coatings, it maintains neutral colour accuracy while resisting reflections, moisture and surface wear. A 3.3mm slim aluminium frame with front threading supports stacking with minimal optical impact.