I took a timelapse last night, using flash. It's around 300 frames and it was taken in manual, 1/60th, ISO400, f/2.8. But all the images have slight exposure differences due to my strobes.
I understand that "very expensive studio strobes" wouldn't have this problem and will always give consistent exposure, but mine are just YN-560III and IV. This is never a problem with still photos since it's not appreciable. And even if it is, a handful of images can be tweaked later. But the flicker is very obvious in a timelapse video.
So, is there a tool that I can use to automatically normalize the exposure level of a bunch of still images?
(as for why I used strobes: the subject was a flower that opens only one night every year and then it dies. last year I used continuous light and the flower didn't open fully. this year, with the strobes, it did - so strobes were the correct choice for this very particular subject).
Edit: I've tried Lightroom's "match total exposure" tool but this doesn't work. From what i've been reading, this tool changes the exposure value based on the metadata (ISO, time, aperture). So it will compensate for photos where exposure is different from camera auto-exposure for exmple, but not for M mode where all photos have the same settings.