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The Heliopan 77mm Graduated Neutral Density 4x Filter is a neutral density filter that gradually increases in density from one edge of the filter to the other. This allows the photographer to control overexposure in sky areas for example. This 4x filter has a 2 stop variation.
Heliopan 77mm Graduated Nd 4x Neutral Density Filter
$132.99 - $160.99