Re: Pyrogallol staining development

MR JOHN A ROSEBOROUGH (SBFD52A@prodigy.com)
Thu, 07 Mar 1996 23:57:06 EST

On Sat, 9 Mar 1996,John Rudiak wrote:
>John, do you prewet the film before it goes into the tank?

Yes I do for 5 min and I also split the developing time with 2 paths
there by reducing the affects of developer oxidation caused by tank
rotation. Other words if the development time is 12 min, for
instance, I develope for 6 min from the first tank - dump - and use
fresh developer for the secound 6 min.

>BTW, what are you using for rotational speed?

50 RPM

John