B+W 67mm Grad ND 0.6-4X (502) Product FeaturesSize: 67mm | Style: 0.6-4X This filter uses our standard B+W F-Pro filter mount, which has a front accessory thread and is made of brass. Product DescriptionSize: 67mm | Style: 0.6-4XFrom the ManufacturerThe images on the left was taken without any filter.The image on the right was taken using a B+W Graduated ND filter.Click for larger view.B+W Graduated ND (502) Filter - Darken Half Your Image up to 2 F-Stops This filter has a graduated density from clear to gray. The neutral gray half of this filter transmits 25% of the incoming light. You will use it ...
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