The König Universal Development Tank is a device that removes the need for a darkroom when developing film. It consists of two adjustable rolls (35, 46 and 60mm), of a central axis on which the rolls are placed and all this goes into the development tank that is sealed with a screw-on cap that allows for liquid exchange and the sealing cap that keeps it all in when agitating by inversion. One needs to buy a changing bag in which the film is transferred from the cassette to the rolls.
The changing bag is less fiddly than expected and film can easily be transferred to the rolls, 120 included.
Liquid levels should be respected so that the rolls are fully imersed.
And the results are very good:
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