Cinestill 50 expiry

[santino]

Yesterday I picked up a developed roll of cinestill 50 and the film was actually blank (dark negative). Under strong light I am able to see Something but the shots are useless.
I shot that roll about 5 years ago so meanwhile it surely has expired. Is expired cinefilm generally prone to such a behaviour? Normal expired C41 film seems to age better.

 

[Freakscene]

Yesterday I picked up a developed roll of cinestill 50 and the film was actually blank (dark negative). Under strong light I am able to see Something but the shots are useless.
I shot that roll about 5 years ago so meanwhile it surely has expired. Is expired cinefilm generally prone to such a behaviour? Normal expired C41 film seems to age better.

ECN2 films have much poorer image latency than C41. It is the price for the differences in performance that are required for cine use. Thereis a difference between latency and expiry. Some films that have long expiry dates (such as Ilford Pan F+) have poor latency, and vice versa (Kodak Tri-X).

This is one case where ‘process promptly’ is really necessary.

Marty

 

[santino]

Thanks Marty. Good to know. As far as I can remember even the film cartridge says "process promptly"


Lesson learned.