Quote Originally Posted by Gerald C Koch View Post
The idea that the oxidation products of the developer act as a desensitizer is very old. If the effect ever existed it would be dependent on the developing agent(s) used. I seriously doubt that the developing agents used now would have the same effect. The oxidation products of phenolic developing agents like pyrogallol are vastly different from those of a developer like Xtol.
So do you have any thoughts about how it does work, Gerald? Developed silver helping to block light? The exposure occuring late in the process so not enough time to develop as Bill suggested? Simply too little exposure to make a difference beyond a slight increase in base fog? All of the above?

I'm just curious. Thanks!