Dual ISO/graduated neutral density filters

[chadat23]

I was imagining accomplishing what a graduated neutral density filter does using the camera iso setting above a user defined line and a ML defined iso for below the line. Being able to angle the line could be nice but isn't necessarily necessary. Maybe you'd also get a marker when using Live View so you wouldn't have to guess and check as to where the line is. Thanks

Chad

[Audionut]

http://www.magiclantern.fm/forum/index.php?topic=7703.0