Hei, Morten!

With only two apertures and one shutter time I think "rating" the film is somewhat overambitious... Sounds like it should be exposed by daylight, is all I can say.

When I could hear that the shutter on one of my old cameras should have been cleaned a long time ago, I exposed by guesswork and developed in half-strength FX-2 for 45 minutes without agitation. All the negatives on that roll wer usable!