Canon PL-C B 58mm Circular Polarising FilterCanon PL C B 58mm Circular Polarising Filter A 58 mm polarizing filter to reduce reflections from non metallic surfaces such as water, glass or pollution in the atmosphere and enhance colour saturation for bluer skies and greener leaves. The polarizing effect of this filter helps prevent glare from your shoots, whilst providing greater clarity for better results. Key Features: Designed to fit lenses with a filter thread of 58 mm Low profile design