U of S | Mailing List Archive | alt-photo-process-l | RE: Pyrocat HD Capacity?

RE: Pyrocat HD Capacity?



Loris,

>
Development time for slow and
medium-speed films is 40-50 minutes, 70 F.  
>

Whoa 40 to 50 minutes. That's much much longer than I've experienced!

>
Development time for fast
films is 50-60 minutes.  
>

Ditto here.

>
Dichroic fog may result from extended
development of high speed films. 
>

I may have experienced this but haven't tried diluting the developer. I
would be interested hearing from anyone that has experience this problem.

>
If this is a problem in your work use a
1:1: 200 dilution and reduce development to about 30 minutes.
..."
>

Loris have you tried these times and dilutions?

The times listed on unblinking eye work pretty good for starting points for
conventional development of roll film. A friend of mine locally has been
semi-stand developing TMAX 100 with excellent results. The film scans well
and prints well. I'll find out what his times are.

My times for sheet film developed in a Unicolor drum run about 16-20 minutes
@ 75F using agitation described above by Loris. I think there is a lot of
latitude with time and temperature with stand development but not so much
with conventional rotary or tank development.
 
Don