I use Paterson tanks for 120 (or 35) I have a few and can use2.3,4 or 5 reels I prefer a maximum of 3. For LF I have Jobo tanks (pre rotary and two spirals that hold 6 sheets each. You use the volume of developer to cover the spirals and agitate by inversion I use 3 inversions every minute.
I only process certain films together where I'm happy to use the same development times.
I explain evil! I mean developing two or more rolls with different ASA at the same time in the same tank! Sorry for my bad english!
Yes that's what I meant, I process Delta 100 & HP5 orAdox/EFKE 25 at the same time or Fomapan 100 & 200 together but I don't mix the Foma films with any others as they need a much shorter development time.
I thought so ... I think it is possible to use a very dilute developer such as rodinal 1 +100 and develop for an hour without stirring. I was also thinking about developing with a divided developer and finally a homemade developer for color with cd4, cd3 or cd2, What do you think?