Offizieller Kommentar
The Balmeceda Rio sample has a different filter. You should talk to Aerial Ag Pros and ask them how to calibrate their camera to get real NDVI values.
Please read more about adjusting the Maps Made Easy coloration for use with hacked cameras:
http://support.dronesmadeeasy.com/hc/en-us/articles/206003636-NDVI-Processing