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Glenn Przyborski

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Everything posted by Glenn Przyborski

  1. Andrew and everyone... As the person who's been involved shooting all the initial and final tests of the VAF-5D2 filter with Dr. Cubanski of Mosaic Engineering, here's the settings that I use... With the filter in-place, I still keep the in-camera sharpness at its lowest setting. I do this because the 5D's internal sharpness settings are more like adding "contours" or edge enhancement rather than increasing true, high frequency sharpness.  On a Final Cut 7 timeline, I'll typically add about a 12 to 15 setting on Final Cut's "sharpness" filter. (This is a simple filter that's part of Final Cut.)  The result is a sharp image that cuts well with RED and other full-resolution 1080P footage. I also use the "5D to RGB Batch" program to convert the 8 bit 4:2:0 camera files to 10 bit ProRes422HQ. I feel that this inexpensive program, although slower, does a better job of converting the H.264 camera files than Final Cut's log & transfer function. My favorite 2 lenses to use with the VAF-5D2 filter in place is the 24-70mm F2.8L and the 70-200mm F2.8 L IS. Zoom lenses won't track focus with the filter in-place. That means you have to zoom to a desired scene composition, then focus. Both of these lenses appear to be very sharp from edge-to-edge at any focal length.  All the comments that Andrew has indicated in his review are correct regarding loss of edge sharpness with fixed wide angles of less than 35mm. For some reason, the design of the 2 above mentioned zoom lenses reacts differently than fixed lenses. FYI, the 16-35mm zoom does not work well with the anti-aliasing filter in-place.  Also, don't use the filter with Nikon lenses that have the long iris close-down actuator pin on the rear of the lens. This lever can come in contact with the VAF-5D2 filter assembly.    Hope that helps...  Glenn
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