The related Sub Rule to this is to not only make sure you have film in the camera, but which film is in the camera...
A roll of ISO 80 Ortho Plus film being not only mistaken for ISO 400 HP5+, but also shooting part of the roll with a deep red filter... Really does make for a useful supply of blank film base, which I am sure is useful to have around.
[I really need to either stop playing with different film stocks in my Rolliecord, or rig up a reliable film indicator for it.]
A roll of ISO 80 Ortho Plus film being not only mistaken for ISO 400 HP5+, but also shooting part of the roll with a deep red filter... Really does make for a useful supply of blank film base, which I am sure is useful to have around.
[I really need to either stop playing with different film stocks in my Rolliecord, or rig up a reliable film indicator for it.]