This is what I see:
https://s8.postimg.org/hpxoe38id/alexa.png
(Levels min_in=512-20, max_in=512+20)
The lower edge is maybe this problem:
http://trac.ffmpeg.org/ticket/6675
Other parts look good to me.
Btw in VDFM there are 3 ways to decode CineForm, this way I saw some defects with different behavior across implementations.
1) Native: through caching input driver and default options
2) FFMpeg: through caching input driver and uncheck "Use native decoder" in open dialog options
3) VFW: through AVI driver