JOBO 3010 optimal chemistry volume

[miha]

Any info on the optimal chemistry volume for 3010 available? I know the minimum which is 210 ml but putting in a bit more shouldn't hurt should it?

 

[Tom Kershaw]

I use 500-600ml in mine for black & white negatives with no issue.

Tom

 

[ic-racer]

I think most people grab the whole tank, rather than the lever alone doing the lift, so the extra weight should probably not be an issue. For the record, the last ten years I have used a volume of 260ml.

 

[miha]

Thanks. My beakers hold 400 ml so this is the valume I use. Btw, I'm using the drum on the rollers, rotating it by hand.

 

[Sirius Glass]

I use 500-600ml in mine for black & white negatives with no issue.

Tom

+1, 500ml for replenished XTOL or C-41 chemistry, but 250ml for pyro because it is mixed as a one shot for each batch.

 

[Oren Grad]

There are two issues here. The first is how much solution is needed to assure appropriate flow patterns within the drum and even development. I'd guess that that's the criterion used by Jobo in specifying 210ml as the minimum volume. But the second question is how much solution is needed to have an adequate amount of developing agent for the amount of film that's loaded in the tank. That will vary, depending on the developer and dilution being used. There are developer/dilution combinations for which 210ml would be inadequate. Check the documentation for your developer to see how its capacity is defined.