A nice article about Wide DR posted by Ian McCauslan at Abelcinehttp://blog.abelcine.com/author/ian-mccausland/.
http://blog.abelcine.com/2014/08/04/using-wide-dr-gamma-with-the-canon-c100-c300/
At my question about which ISO is best with Wide DR (850 or 640) the answer was: "I used the camera at 850 ISO. The reason is that I get the maximum stops above and below the mid point of exposure ( 5.3 stops above & 6.7 stops below ). 640 ISO is considered native on the camera according to Canon because that is where you see the least amount of noise in the picture. However the camera delivers great images at 850. Canon places the brackets around the 850 iso setting to indicate you have set the sensor for optimum stop range. When you increase the sensitivity beyond 850, you start to gain up the sensor and noise starts to be added to the image. The short answer is that the bulk of images captured with the camera are at ISO 850. It gives the DP the greatest range."
I wish somebody with enough experience with C100 will post an detailed article about Custom Profile with real word example of exterior, interior, lowlight etc.
http://blog.abelcine.com/2014/08/04/using-wide-dr-gamma-with-the-canon-c100-c300/
At my question about which ISO is best with Wide DR (850 or 640) the answer was: "I used the camera at 850 ISO. The reason is that I get the maximum stops above and below the mid point of exposure ( 5.3 stops above & 6.7 stops below ). 640 ISO is considered native on the camera according to Canon because that is where you see the least amount of noise in the picture. However the camera delivers great images at 850. Canon places the brackets around the 850 iso setting to indicate you have set the sensor for optimum stop range. When you increase the sensitivity beyond 850, you start to gain up the sensor and noise starts to be added to the image. The short answer is that the bulk of images captured with the camera are at ISO 850. It gives the DP the greatest range."
I wish somebody with enough experience with C100 will post an detailed article about Custom Profile with real word example of exterior, interior, lowlight etc.