Re: C100 grainy images
 

To add to what Matt said....

C-Log is for situations when you know you will be color grading. It has the highest dynamic range available on the C series cameras (canon says 12 stops although they showed a test chart with approx 13 at the C300 launch) and gives the photographer the most flexibility when shooting. For the most part you simply white balance and avoid clipping your highlights and leave the rest to your colorist/ or handle in the comfort of the editing bay.

C-Log has more saturation than most Log gamma schemes and thus tends to look "not bad" without color grading. In bright contrasty sun situations, it quite often actually looks "finished". I use it for almost everything, as I'm not enamored with the color from any of the presets supplied by Canon.

Re: C100 grainy images
 

Thanks for all the replies. I have been away so unable to respond. I guess I was shooting in very low light conditions when I saw noise. Overall, using Wide DR, I find that in bright light the camera tends to overexpose by at least one stop when using one one touch auto iris. White balance seems off. Outdoor white balance is too blue. Auto white balance was not very helpful. Images seemed excessively sharp so I am thinking of changing that setting. I have a lot to learn.

Re: C100 grainy images
 

Here is a short "trailer" of a high school production shot with the EX1r and the c100. I switched to using EOS standard for a while, and definitely prefer Wide DR. I am blown away by the camera but, as always with theatre productions, one has to ride the iris wheel.