Thanks the images are unclamped now, however, I have issues with the alpha channel - is this stil 8bit? When I for instance really push the image in after affects it looks fine, however, the "alpha edges" become hard/harsh. Is this a limitation with alpha? This is my first project where alpha channel is required. I guess i could probably use a separate alpha or maybe it's simply an after effects issue/setting with the exposure filter.
The reason for this workflow, is that I can't predict the lighting intensity all the way through the animation, therefore being able to "capture raw" and then simply adjust the exposure in ae works well - especially if I can get the alpha working properly.