Heliopan Vario Neutral Density Filter

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Heliopan is now shipping the new Vario ND filter, which is adjustable from 1 to 6.6 stops of ND (0.3 to 2.0 density) by simply turning the calibrated rim on the filter. The Heliopan Vario ND filter is totally neutral in color. It’s mounted in a black anodized brass ring that is numerically calibrated for ease in repeating a desired density. hpmarketingcorp.com.