Response to unicolor or beselor or jobo drums?

I prefer the Unicolor drums because they have little ribs which hold the film away from the walls, thereby allowing the chemistry to get behind the film. The trough is to hold the chemistry before you start turning the drum on the base i.e., put the film or paper in the drum, close it and pour the chemistry in through the spout. The chemistry pools into the trough inside the drum and once you start the motor, the entire film gets more or less evenly wet. Regarding putting more than one 4x5 film into the 8x10 drum, there is a ridge on the top of the Unicolor drum so that the sheet of 4x5 film is held between the ridge on the trough and the ridge on top (opposite the trough). So you can load 2 sheets on either side of the drum and if you could find some way to keep the sheets separate and prevent their overlapping during the rotation, you can load 2 on each side. Hope this helps. DJ

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