HP5-Plus developed in D-23.

When I push HP5 to 3200 I use Edwal FG7 with 9% sodium sulfite. 21 minutes at 68f. I have used it for dancers portraits in very low light.

I use Gitzo or supplemental lighting . Common developers only pick up 1/3 stop speed on extended development.
Diafine gives tri x a real 1200. Real means there is shadow density.

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