"Mortimer" wrote in message
...

I've noticed that professional timelapse videos don't flicker as much.
What do they do - do they have software which post-processes each frame in
an attempt to compensate for gross changes in exposure as the lighting
changes?

You can't get rid of flicker without a lot of work. Lighting conditions
change during the day so you can use the auto exposure feature of the camera
to minimise the effect, but then you regionalise the flicker. For example,
if you capture clouds rolling over a castle, you'll get exposure variations
on the brickwork depending on (say) the thickness off the clouds. If you
bracket the exposures over a small area - just the brickwork, the brightness
of the clouds will change.