I'm recording a series of lectures with a Canon XH-A1s. It is in the evening with about 90% incandescent light and 10% outdoor light (very few windows beginning near dusk).
At the beginning of the 1st lecture I used auto white balance and auto gain. About 1/2 hour into the recording, it was pretty dark outside (100% incandescent).
This light was pretty poor/dim. The resulting video is bright enough but the color started good but drifted pretty red. The 2nd lecture I used manual white balance set to K=3200.
Gain was still set to auto. The while balance still drifted to the red, and somewhat noisy due to poor light. Shouldn't a fixed white balance prevent drifting?
The speaker doesn't move and is under dim incandescent floods. Kind of a pain trying to fix in post. Thanks for any thoughts.