Quote Originally Posted by Photo Engineer
More than you ever wanted to know. Right?
Actually not, always interested in new information.

I was unaware that the side chains were different for Kodak and Agfa. The way it had be explained to me was that for the Kodak C-22 films the couplers had a low molecular weight and had to fixed by the "resin beads". The Agfa couplers had a very long side chain which created drag and prevented drift within the emulsion.