>
> ----- Original Message -----
>
> According to Kodak, who invented the process, C41 is a "process to
> completion" process at it's rated time/temperature.
> Under developing (pull processing) won't allow the mask to proces
> completely, which will lead to cross curves and impossible colour balancing
> problems.
> Over developing (push processing) will over develop the mask layer, causing
> cross curves and impossible colour balancing problems.
> Any potential gain from over developing is eliminated by the increase in
> mask density.
>
> There is, in fact, very little speed gain from push processing film. About
> all that happens is that contrast increases.
> There is generally remendous speed loss from pull processing, as well as
> loss of contrast.
>
> William Robb
Actually now that i read your reply Bill,i had my example backwords.I shot 160 film at
400
not the other
way around.But they still came out well.
FWIW.:-)
Dave
