If someone could be so kind to either film under studio lighting or failing that, get me some static shots of a subject on a cloudy day, so the shadows (dark areas) are fairly well exposed and no clipped highlights. Just a quick few seconds worth of frames ie 100 or so. If I could get the raw image data and some dng's even better and I will try a variety of debayering methods.
Pritchboxer,
Having a cine background, your request intrigued me. So, I just shot some test footage for you! Here's what I have:
Camera using latest firmware, and the debayer beta patch.
Lens #1:
SMC Pentax-A 645 Macro 120mm f/4
This is one of the best lenses I have. Razor sharp with no CA or coma to speak of.
Lens #2:
Computar TV Zoom Lens 12.5-75 f/1.2 - set at about 45mm on the zoom
This is the C-mount that's popular for Chronos users. In my opinion it's pretty crap optical quality, but it's small and works well for technical shooting.
Both shots are 1280x1024 @ 1052fps (or whatever that first fps choice is). I blackshaded after a 20-minute camera warmup.
Both shots are in direct sunlight from a cloudless sky, reasonably well-composed including green foliage, a pink/magenta flower with yellow pistils, some bokeh in the background, and some little bugs flying around for slomo effect. Should be a reasonably wide dynamic range in the shot to work with.
Exposure was done at f/6.3 on both lenses, and the shutter was set at about 180 degrees like you'd do for a cine shoot. This got the highlights to be just under the zebras with only a tiny bit of headroom for light variance. Without a raw histogram or raw clip indicators on the RGB channels, this is as close as I could get to exposed as far right as possible for maximum quality.
I saved both as RAW and h.264 (using camera default settings)
Would you like the files to color grade?
Edit: Also shot xrite color charts with each lens (note color chart shot on computar was using a crap 2x macro converter because I was lazy. shouldn't affect colors tho)
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