Bueno me he encontrado con una grata sorpresa.. He visto varias respuestas similares pero pondre la que mejor se explica:
It's quite routine for film users to expose the material at half the
manufacturer's exposure index. I use a lot of Kodak TMY, which they
rate at 400 and which I use at 200.
The 'real' (whatever that means) speed of T-Max TMZ ("P3200") is
around 800. The name implies it can push very nicely to 3200, or at
least is supposed to. I like to set my meter at 640 for TMZ. I like
the shadow detail this way, and I just wish it would come in 120
format. Actually, TMZ seems to me to have a special grain pattern, in
the same sense that Tri-X does. I like TMZ very much. It's excellent
in a camera one carries around a lot and uses under widely differing
conditions.
Basicamente dice que Kodak Tmax P3200 es en realidad ISO 800 con buenos resultados llevandolo a 3200.
Lo que entiendo de esto es que tengo que revelarlo en los tiempos indicados por el fabricante, ya que solo sobreexpuse 1 paso y el resultado no estara mal..
Hare la prueba y a ver que sale....