4x5" Astia 100 (not 100F!) weird problem

[darkroom_rookie]

Figured this deserves its own thread...

What's the main difference between Astia 100 and 100F? I developed a lot of 4x5 sheets in a Jobo drum and FujiHunt Chrome6X kit and Astia 100 was curved, whereas 100F flattened instantly. Basically, Astia 100 sheets retained the semi-circular shape of the Jobo 3010 drum. All expired film, but otherwise no colour cast or any other defects. Anyone else experience this with Astia 100 sheet film?

 

[Jerevan]

Differences in the gelatine?

Differences in the drying process? This can make film more curly - too varm and fast drying can make gelatine shrink faster and take the base of the film "with it" when it contracts.

 

[darkroom_rookie]

The sheets are curled right out of the drum, after washing, prior to stabilizing, and remain such. They dry fine, but don't flatten by themselves during drying.

 

[CatLABS]

old film.