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The Formatt 77mm HD/DV Soft Effect Clear 3 Schott-Desag B270 Crown Optical Glass Filter is designed with the HD (High Definition) shooter in mind. Today's HD lenses are ultrasharp and often generate an image that is not as flattering to a subject as one might desire. This incredible technological breakthrough gives HD shooters the touch of softness they want but with no resulting loss of contrast or detail.
Using a sophisticated series of tiny "lenslets", the filter allows a certain amount of light to pass through unaffected. The rest is bounced around inside creating spherical aberration, avoiding the risk of secondary focus at short focal lengths, as may happen with other so called "soft" filters. These lenslets eliminate the moire patterns often generated by the highly sensitive surfaces in today's HD lenses and digital sensors.
Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.
Note: HD Soft Effects Clear filters are available in strengths from 1 to 3-with 3 having the greatest effect.
The filter uses a series of small Plano-convex lenses mounted within a specially developed matrix which in turn is sandwiched between highly polished sheets of Schott B270 Super White optical lens glass.
Each filter is manufactured from Schott-Desag B270 Crown Optical Glass
It has absolute consistency in color and density to Kodak Wratten standards.
Its precision grinding and polishing result in unbeatable optical flatness that allows use on even ultra-long focal length lenses.
Filter edges are protected with a unique frame for maximum protection and easy handling.