What makes this film particularly unique, however, is that it has an ISO of 6. No, that’s not a typo, the ISO setting is actually 6. That makes it a full four stops slower than typical ISO 100 film. That means that a scene that would typically require a shutter speed of 1/60th would now require 1/4 second. That means you can shoot wide open on super bright days, or, more likely, you can do some neat things with longer exposure times.