The Miniature mode (on more recent cameras) is an easy way to do a quick
time lapse without having to edit hundreds of frames at pc.
The factory mode has these limits:
1-to get an HD movie (720p) you must switch format to 16:9
2-does not allow zooming
3-does not allow refocusing
4-blurs top and down part of frame
I made this mini script that turns the factory Miniature mode into a Time lapse mode without blurred areas (+ zooming and refocusing capabilities).
A common command line for refocusing is at the end of the script, but doesn't workAdded
set_aflock(1) to the focusing part. Now it refocuses via half-press. :-)
Refocusing during zooming seems utopian.
Didn't find any useful "hack" for #4. Is there any way to modify or remove the blurred area?It seems that
setting prop 321=4 blur parts are gone

You have to test it with your camera model.
Need your help ... as always
With ixus 125 the start/stop rec button corresponds to "display" button name (to match the CHDK RAW fast switching).
With different cameras you have to edit the script line "if is_pressed("display") ..." with "if is_pressed("YOUR PREFERRED BUTTON") ...".
Look at here for valid button names.Updated Version (Thanks for your help)
Read
here for changes.
Attached last updated version (1.3).