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Ilse Jurriën : February 1st 2008 - 18:05 CET

Lens filters for Medium Format cameras


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RolleiLens 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.
Lens filter

Rodenstock lens filter - Edge coating
The design of the brass ring also offers safety features, such as a sufficient amount of threads to ensure lens cap attachment. Additional unique features of the Rodenstock HR filters are edge coating, which reduces internal reflection and won’t delaminate, and an extremely hard, digital multi-coating process that allows for the superior optical characteristics to be sustained in “real life” situations. The filters have multiple thin coats, the last which is water shedding and causes water to literally run off the filter like water on a waxed car. The use of thinner optical glass provides less aberrations and better light transmission, as well as permitting the use of thinner filter mounts.

Rodenstock HR filters label
Rodenstock’s use of high transmission glass provides a cleaner path of visible light and reduces ultra violet rays below 400 nm, which is important because the new digital standards require the ability of light to pass straight through to the imager. The lens filters, which carry the Rodenstock HR (high resolution) label, are manufactured to meet Rodenstock’s stringent standards for optical performance. Rodenstock is a long time leader in the design and manufacturing of professional optics. No hazardous materials are used in manufacturing and the lens filters meet all RoHS standards. Only six (28 mm, 35 mm, 60 mm, 70 mm, 100 mm, 180 mm) lenses in the Rodenstock product line carry the prestigious HR designation.

Rolleiflex Hy6 medium format

Rolleiflex Hy6 Medium Format camera
In addition to the lens filters, DSM will exhibit the new Rolleiflex Hy6, an advanced medium format camera for film and digital applications that features the ability to accept pro digital backs and all of the Rollei PQ and PQS lenses.

Horseman SW-DII Pro & LD Pro cameras
It will also exhibit Horseman’s SW-DII Pro, one of the widest angle rear standard movement cameras on the market, and the Horseman LD Pro, a camera that lets the photographer tilt and shift a DSLR for sharpness and perspective control.

Horseman LD Pro




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