Lens filters for Medium Format cameras : Direct Source Marketing, the U.S. distributor for medium and large format Horseman and Rolleiflex professional cameras, announced that it will exhibit at PMA what is expected to be the thinnest circular polarizer filters that take a standard snap lens cap. The Ultra Slim Rodenstock HR advanced filters are believed to be 1-1.5 mm thinner than any other filter. They are designed to bring out the best in optical performance for the new, advanced digital standards. The Ultra Slim Rodenstock is also expected to be the first ultra slim filter with brass rather than aluminum rings. The brass rings help ensure optical alignment of the filter to the lens.
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