My first attempt at a time lapse using a Canon 40D tethered to a laptop. The laptop lost the connection a couple times, and it was accidentally repositioned once. For some reason a few frames seemed to be shifted upward and were underexposed. I corrected the exposure of a few of the originals, but they ended up showing lighter than the adjacent frames in the final render. Next time I'll use full manual and hopefully they'll be enough headroom to adjust the exposure after. Or perhaps I can find software that can bracket exposures so I can use the best of all worlds.