Hi,
I just bought a jobo 2500 series tank and 4x5 holder to develop 4x5 film. My main problem is that I don't have a motor base, so I was thinking of making one out of lego
I see it being relatively easy but I am unsure of what speed I should set it to, am I right in thinking it is 60rpm?
Up till now I have been using the taco method with inversion using these times..
Fomapan 1:100 10mins (rodinal)
Ilford FP4 1:50 14mins (rodinal)
Will the times stay the same for rotation developing? I have read that switching direction stops streaking, is every 30 seconds ok?
Thanks for any help.
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