Shooting 50 year-old expired film

[@Shaka1277]

I'm aware that this testing wouldn't pass as scientific under any circumstances, but this is how I did it over the course of many weeks, so here we are. 01:59 To clarify, when I say these negs are "thin", I mean the DMax and DMin are very close due to the heavy base fog.

[@john_murch]

This gives me hope for the one roll of Agfa Isopan FF 1960 (ISO 25?) that I've acquired. Almost no information to be found on the this one.

[@blabla12345200]

Give it a shot! Lower ISO film should have less base fog than the 400 speed Tri-X this video is about. I've shot Panatomic-X ISO32 (discotinued in '87, don't know the expirstoon date) at box speed and had no visible base fog at all.

[@Shaka1277]

I agree with Felix! I have some ISO 100 B&W film from the late 90s and it's totally fine at box speed, no messing about needed.

[@Olyvia..]

Actually the „exponential agitation“ method you mention is how I was taught to do semi-stand, how were you doing it before? A bit at the beginning and then every 15 or so minutes?

[@Shaka1277]

You're actually the second person to tell me this! The "common knowledge" semi-stand method these days seems to be 60 seconds of initial agitation, then 1-2 inversion at the 30 minute mark. I've seen variations with inversions at the 20 and 40 minute marks, or every 15 minutes too. Nothing like this though. It's a solid method and really seems to balance time and effectiveness well.

[@maximilianshootsfilm]

that roll is older then my camera, that being the f2 (my one was made in 1975)