Lapiaz

With the Orbital you only want to use gentle agitation, it's not like the continuous agitation of rotary processors. If you over agitate you get uneven processing and the edges get more development, it's worst with the motor base.
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Yes, using the Paterson motor base for film gives extremely uneven development as the liquid is accelerated around the corners.
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This is interesting as I've never found this to be the case when using the orbital on the motor base. I've tended to use Rodinal and Hc110 in the past, and have always used 150ml or more to ensure that there is sufficient developing agent in place, so maybe that reduces any tendency to splash with lesser quantities? Washing is done with the lid off, so I'm familiar with what the quantities look like, but realise that doesn't replicate what the fins on the lid do during processing. The photo below was done with HC110 and the motor base.
Derelict cottage near Garve, Scotland by Northsnapper, on Flickr
 
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Well done. Much more even than my own results. Some people cut off the fins. If you develop 10x8, they can have an effect which I didn’t find with 5x4. The smaller negs sit closer to the curve of the base, but a 10x8 can easily float to the top.
I’d post an example, but I think I’ve thrown them all away. I would have used Ilford Ilfotec HC with similar quantities.
I didn’t have any problems when developing Cibachrome, using the much smaller recommended volumes and on the motor base.
 
This is a crop of the original due to markings in the sky which might be due to the rough base of the Orbital, but the development seemed even all over. Fomapan 200 shamefully underexposed by about a stop as I forgot to change the shutter speed when I fitted the yellow filter. :rolleyes:

Barevan Church tree by Northsnapper, on Flickr
 
That's a lovely image. I would not describe it as shamefully underexposed. Compositionally, I'd prefer to have seen the image taken from a bit further away to achieve better left-right balance. Then again, I'd probably walk up to the root cluster in the center and do something with just that. Remember, it takes 7 photographers to make an image. One to do the image and 6 to say, "I would have ..."

Also, not one of the rest of us has EVER forgotten to adjust exposure for filter factor ... EVER ;)
 
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