Quoting Scott Loveless <[EMAIL PROTECTED]>:

> ...I went through my notes and
> discovered that this roll had been exposed at 320ASA.
> So I've underexposed...

Scott you have got that backwards. In rating a nominal 400 ISO film at 320 you
have actually given greater exposure than normal, but only by a small amount
that would be well within the tolerance of Tri-X.

Remember "pushing" film is where you rate it at a higher speed than the makers
do (intentionally under-exposing it), then give extra development to compensate.
This gives higher than normal contrast and poorer shadow detail.

Going the other way "pulling" can be used to control extreme contrast, you
expose for the shadows and curtail development to keep the highlights from
becoming too dense (on the neg).



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