I usually rotate it slowly for about 15s one way, then 15s in the reverse direction and so on, on its "rotation" base. Whether using Rodinal (1+50) or more recently PC-TEA (1+50), I always get nice, evenly developed negatives. I try to keep the solution around the 200ml mark.
Originally Posted by Usagi
I do lose a bit of film speed with the continuous agitation, so whereas I would shoot (say) Foma 100 at box speed in 120 format, I'll shoot it at 50 or 64 in sheet film format when developed in the Orbital.