My first outing with the Mamiya/Sekor 500 DTL I bought not long ago involved some Kodak Tri-X expired since 2001. I bought this film to get the dozen rolls of similarly expired Plus-X that came with them.
I’ll write a review of the 500 DTL after I’ve shot at least one more roll with it. Here I just want to share some of the Tri-X images I made with it.
I shot this roll at EI 200. I’ve had great luck shooting this film at box speed, but on impulse I set the 500 DTL to 200 after I loaded this roll.
The seller promised that he’d always stored this film frozen. It performs well enough that I believe him. However, shadow detail can be a little muddy. You can see it a little in the upper corner of this image.
You can really see it in this image. I hadn’t gotten the hang of the 500 DTL’s exposure system yet and underexposed this frame.
Overall, however, this old Tri-X performs well.
Since Kodak manufactured these rolls it reformulated Tri-X somewhat. Modern Tri-X needs less time in developer than the older stuff. I developed these in HC-110, Dilution B, for 7½ minutes at 20° C. That’s the ISO 400 time, despite shooting at EI 200. Kodak calls for only 3¾ minutes in modern Tri-X! Nosing around the forums, I find a consensus that this is not nearly enough time. But the generally accepted range is 4½ to 6 minutes. What did Kodak do to Tri-X to change its development characteristics that much?
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