These are new 58mm Hoya Digital Pro1 ND64 filters.All our filters are genuine Hoya filters and not cheap Chinese copy's that seem to be everywhere these days! ND Filters are used to reduce the amount of light reaching the Film/Sensor of your Camera. The ND64 Filter will lose you six stops of light and have no effect on colours. Will help you use slower shutter speeds than may otherwise be permitted in bright conditions allowing you to (for example) blur running water. Any questions, please message us, thanks for looking
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