Hi guys,
I've just ended with long tests of my watercolor issue on Mavic. Also spoken to DJI support.
I've prepared indoor test scene with continous studio lighting, so I can achieve ISO100 and shutter between 100 and 200.
Multiple combinations of settings done, also upon recommendation of the support.
Conclusions:
for watercolor effect responsible is the Custom setting of the picture - as stated previously by AyeYo:
set to -2/-1/-1 reproduces watercolor in video/JPEG
set to -1/-1/-1 doesn't reproduce visible watercolor video/JPG
of course RAW stills are perfect.
It seems to be compression issue related to sharpness setting, not depending of light conditions
Question: is this issue recoverable by any repair/exchange by DJI or not worth to bother?
IMHO pro device (even for prosumer market) shouldn't have such issues at all.