I bought some used 5x7 film holders and three of them had film in them. My fingers can't tell one notch code from the next, so I just exposed one sheet at EI 100 and developed in Rodinal 1:50 for 9 minutes (I had a sheet of Foma100 so I used that time) mostly so I could see the edge markings. After I did that, I could see the notch and matched it up with Vericolor Print. I've never developed color film in B&W developer, so I don't know how well or badly that is supposed to work. Apparently, according to the datasheet, in daylight (where my test shot was taken) its supposed to be a ISO 160 film, but exposed at 100 and developed in Rodinal, the image was barely visible.
I don't have any expectations for these, and thought about just puling the sheets and trashing them, but I figured I'd shoot them for the hell of it (after all color in 5x7 is not a common thing.) So is minimal image just the effect of using B&W developer on color film, or for the other 5 sheets should I choose a much lower EI, like 25? The film holders are newer (i.e. not old wood holders) so I'm assuming this film isn't 40 years old, so it seems unlikely to have lost that much sensitivity. Should I try another shot at 100, but this time run it through C41?
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