Originally Posted by cinefane
Most alternative processes, including carbon, have very low sensitivity to light. Figures I have seen suggest that the sensitivity of dichromate colloids is about a million times less than that of silver bromide enlarging papers, and thousands of time less than silver chloride papers like AZO and Lodima. This makes enlargement impossible, or at least very impractical, since you would need a light source high in UV radiation of around 10,000 to 20,000 watts.
Last edited by sanking; 07-13-2009 at 01:45 PM. Click to view previous post history.