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DVX100B zebras
Hello. I am working on projects that require me to shoot indoors, in residential homes. I am experiencing problems with bright daylight coming in through windows. Wide shoots of a room’s interior are damaged by the flickering of the overexposed windows. I know that my zebra readings are off the charts. I have experimented with changing the manual iris and with employing the ND filters. However, then of course I lose the contrast and details of a room’s layout and design. Not only do I lose the details, but when I pan across the room, the camera has to compensate for the change in light and so the f-stop changes with causes a visible shift in exposure. I hope that this last part makes sense.
Aside from hanging gels or scrims or what have you on the windows, are there any other in-camera suggestions to diminishing the strobing window effect? Thanks in advance for your advice.
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1 Reply
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The strobing probably comes from the auto knee circuit. Auto knee is almost never the right answer, and it’s unfortunate that it comes as a default in some of the scene files.
If you’re using cinelike-D gamma, that will be the best you can get in controlling the overexposure and getting rid of the auto knee. If you’re using one of the normal gammas, go into the “KNEE” menu and set it to “LOW” instead of AUTO, and save that scene file.
The only way to deal with blown-out windows is to either cut the amount of light coming in from it (through gelling the window with ND or setting up nets or something like that) or to increase the amount of light in the room to narrow down the contrast difference between your subject and the bright window.
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