cpc
Well-known member
Just to get things straight...
"Pulling" film does NOT mean under-exposing the film, in fact it means the opposite. When you "pull" a film in processing, you are under-processing the film, which lowers the ISO of the film, so that to get a proper exposure with "pulled" film you have to OVER expose the film because the sensitivity of the film has dropped from the under-processing.
For example, a film that might have a normal ISO rating of 320, might have an ISO rating of only 160 when it is "pulled" one F-Stop in processing. The reason you "pull" a film is either trying to correct accidental over-exposure, or when you are intentionally trying to "flatten" the contrast of the film by over-exposing and under-processing it, which opens up the shadow areas and lowers the density ( brightness ) of the highlights.
While generally pull processing involves over-exposure, you can certainly pull (underdevelop) with normal exposure, or even with underexposure (although most thin negatives aren't exactly begging for underdevelopment). This is a common contrast control technique, esp. in b&w photography, but is also used with color film.
You would then either print up (normalize) by adjusting printer lights, or simply print normal going for a darker look.