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Resolution QuestionPosted by davidturk
I'm working with several SD, 4:3 ratio clips, plus some stills. I've been asked to create a 16:9 ratio, 1920x1080 movie from these. First, when I'm dropping the SD into the sequence, the ratio changes, & looks like I'm cropping some of the image. I know I've created 16:9 sequences with pillaring, but can't remember how.
I've never changed the pixel ratio. For SD video, I use the Sequence preset DV NTSC 48 kHz, & the same for Capture. I haven't done any editing for about 3 months; I probably need to take a refresher course at the Apple store. tia. david
Genesis uses an RGB stripe pattern of rectangular photosites - and uses a pair vertically - so (1920x3) x (1080x2), which on the F35 (same sensor as Genesis) leads to funky rainbow moire horizontally because although the RGB are not co-sited they're treated as if they are, and vertically the binning and low levels of optical low pass filtering lead to visible luma moire / aliasing.
The simple answer is of course to always measure the resolution of a complete camera system. Although there is some correlation between sensor photosites and measured resolution, different systems of achieving the final image lead to vastly different results. You can start with few photosites and make the best of them, or start with many and massacre them. Graeme
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