Response to Ilford HP5+ exposed @ ISO 200..Do I develop this film at 200 or 400?

Don - There is no "normal" dev time for HP5+ at ISO 400 because it's not an ISO 400 film (in HC110 E). There's no such thing as a "normal" development unless you mean the times given by Kodak (or Ilford) which are almost always pretty far from optimal.

For me, HP5+ IS an ISO 200 film (which doesn't depend on development time) and my development time is that which gives me the required density in the highlights. Shadows determin film speed and exposure, not development, is responsible for shadow density.

So the answer is my development time is for ISO 200. If I shot it at EI 400 and increased development time, I'd get underexposed but pushed negatives lacking in shadow detail and high in contrast.

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