You will need to colour grade in post, the images direct from the camera will look very flat and desaturated. If you shoot for producers that edit elsewhere check with them that they understand this, some aren't patient enough to take the extra time and gain the extra benefits of doing this.
Using cinestyle will give you a lot more latitude for grading though. You'll have a lot more to work with in highlights and shadow areas of the image.
Do some test shoots, contrasty scenes and flat lit scenes and play with them in post. Take extra care with skin tones.
Cinematographer, Steadicam Operator, Final Cut Pro Post Production.
http://philming.com.au
http://www.steadi-onfilms.com.au/
