Mark2211 wrote
Hello,
i have a timelapse project where I have 1000 pictures, the camera is fixed so I can easy remove the bg.
I do not understand that statement. You have a 1000 picture so there are 1000 backgrounds. Yet you write as thought there is a single background. That would only be the case if all images were identical Same exposure same light same focus no movement in the foreground or background. 1000 identical images the timelapse would be a still image.