Hello, a couple of days ago I found two exposed Technical Pan 120 films I shot about 10 years ago, I believe rated at ISO 25. Since I recently got back into film photography I thought, what the heck, I'll try and develop one and see what happens. What happened was the film was completely clear/transparent - absolutely nothing on it. Here's what I did: 1 min presoak, semi stand development in Ilfotec LC29 1+100 (6mL dev, 600mL water) at 18°C(65°F) I read lowering the temperature reduces the possibility of fogging with old films, then normal fix for 5 minutes. All the chemicals were fresh. The LC29, supposedly, is similar to HC-110, only more diluted, which should be ok for stand development. I've used the 1+100 formula with LC29 with several films now and they all came out ok. So now I'm at a loss.. Any idea what I did wrong and what I should do with my second roll? I can't find any usable information on how to develop Tech Pan with LC29. A few days ago I ordered a bottle of Adonal/Rodinal and I should receive it by the end of the week, do you think I should try with that? Digitaltrouth's Mass Dev Chart has that on their list with Tech Pan. Otherwise there's a limited supply of developers in my region and I'd hate to order something just to develop one roll of film. Any information would be much appreciated, thank you!