Ok, so I finally got around to doing a longer test. In this video, I go through all the FS5 gammas. For post workflow, I put the UHD .mxf file into a 1080 timeline and did not resize, so what you are seeing is a pixel-for-pixel representation (no downscaling/upscaling or interpolation).
https://vimeo.com/150547928
Watch in HD, or download the 1080 file. It's most clearly visible on the moulding under the window sill.
I used factory default picture profiles so that anyone who wants to know the specific picture profile setting I used already has them already available on their camera. But please don’t misinterpret this as meaning that it happens only in factory default settings. Every picture profile parameter tweaked has no effect on reducing the artifacts.
Other notes:
UHD 24P (though it’s the same in 30P)
Artifacts visible the same on uncompressed HDMI, and on camera monitor. (this is NOT an XAVC, or post workflow issue)
Clear image zoom off
I live in a very old apartment so apologies for the gross looking window sill and wall
My conclusion. The artifacts show up in all Gammas, though in slog they start to appear at higher ISO’s than the other profiles. One new thing I discovered doing this test was that the artifacts can be triggered by changing the exposure while filming. Ramping the variable ND caused lines to wobble and block/spike the same way as when panning vertically.
https://vimeo.com/150547928
Watch in HD, or download the 1080 file. It's most clearly visible on the moulding under the window sill.
I used factory default picture profiles so that anyone who wants to know the specific picture profile setting I used already has them already available on their camera. But please don’t misinterpret this as meaning that it happens only in factory default settings. Every picture profile parameter tweaked has no effect on reducing the artifacts.
Other notes:
UHD 24P (though it’s the same in 30P)
Artifacts visible the same on uncompressed HDMI, and on camera monitor. (this is NOT an XAVC, or post workflow issue)
Clear image zoom off
I live in a very old apartment so apologies for the gross looking window sill and wall
My conclusion. The artifacts show up in all Gammas, though in slog they start to appear at higher ISO’s than the other profiles. One new thing I discovered doing this test was that the artifacts can be triggered by changing the exposure while filming. Ramping the variable ND caused lines to wobble and block/spike the same way as when panning vertically.
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