some time ago i did bracketed time lapse, stacked it into a hdr movie and wasn't happy with it so i thought: why not make a normal time lapse out of it? but i had to take out only files with same exposure. i have taken 3 bracketed shots, so i had to take out every third file.
so, IMO the fastest and simplest method to separate different exposures into folders is this:
- put your card into reader
- open folder with pictures
- view it as miniatures or list
- resize the window, so only n columns of files fit (where n is the number of exposures)
- select only one column with your mouse
- cut -> paste into different folder
simple, fast, no additional scripts needed. although i'm not quite sure is that what you're looking for
one other thing: while using miniatures view, you can tell if you're doing it right: for example, if you have 3 exposures, and you resize window so that only 3 columns of files fit, then you should have normally exposed pictures in the left column, underexposed in the middle, and overexposed in the right column. or something like that.