MartinP
Member
I have worked in darkrooms with revolving doors, double doors (one inwards, a frame between them with light=proofing, one outwards) and a labyrinth (no doors, but two right-angle corners and plenty of blackout material).
The most compact was the double door, the most convenient was the labyrinth. The rotating door was awkward to use while carrying anything and not very practical in any way. Carrying exposed materials out of the dark is probably best done by placing it in a light-trap in the wall, rather than through a doorway - certainly a rotating one.
If there is an emergency regulation in place, there will perhaps have to be a separate, outwards-opening doorway that isn't used when the darkroom is 'dark'. A more convenient second doorway in place of a rotating-door would also help when shifting trays, furniture or machinery. There may still be a sort of rotating-door that can open in a frame when the darkroom is not 'dark' - a former colleague had one at home, but it could have been self-made.
The most compact was the double door, the most convenient was the labyrinth. The rotating door was awkward to use while carrying anything and not very practical in any way. Carrying exposed materials out of the dark is probably best done by placing it in a light-trap in the wall, rather than through a doorway - certainly a rotating one.
If there is an emergency regulation in place, there will perhaps have to be a separate, outwards-opening doorway that isn't used when the darkroom is 'dark'. A more convenient second doorway in place of a rotating-door would also help when shifting trays, furniture or machinery. There may still be a sort of rotating-door that can open in a frame when the darkroom is not 'dark' - a former colleague had one at home, but it could have been self-made.