Response to Pulling HP5 400 to 100 ASA?

When I develop HP5+ in HC-110 (1:47) I rate it at EI 200. In fact I think most people rate it slower than 400. Exposed at EI 100 it won't look too bad even with "normal" development. You could cut back on recommended times by maybe 20% if you're worried about the highlights getting too dense.

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