A demonstration of the use of ISO reduction and timelapse video features in Magic Lantern firmware for Canon EOS cameras.
ISO reduction is a digital crush of luma values in the camera and will not completely replace the use of ND or Vari-ND filters, but is usefull if you have none available. Remeber that shots with white clipping will also require some color correction, as the red channel does not get clipped the same as the green and blue.
The FPS Override feature allows you to record video with much slower frame rates. Even as low as seconds per frame! This leads to over exposure hence the need for ISO reduction

This video was shot on an ipod and edited in FCP 6.
Music details:
Blue Circles by unreal dm CC BY 2.5
Drops of H20 by J Lang CC BY 3.0
The New Music by Alex Beroza CC BY 3.0
all music from ccmixter