Paterson lids get very firm.

[Sirius Glass]

Thanks. Sorry for confusion I meant rotation speed 1500 thanks.
And is 500 the maximum or minimum?
It’s says on the tank.

I will have to check on the setting but I believe it is 'P' for the tanks and '4' for the 3010 Expert Drum.

 

[mshchem]

Thanks. Sorry for confusion I meant rotation speed 1500 thanks.
And is 500 the maximum or minimum?
It’s says on the tank.

You can use more than the recommended volume of chemistry in rotation, however it's a good idea to take the tank off the rollers and give it an inversion a couple times every minute or so.

I have a Duolab machine, maximum film tank is a 1520. These processors use a special cog on the lid, these require screwing a special 270mL bottle to the tank lid.

On the Duolab you have a difficult time keeping much more that 250ml in the tank in rotation, any more and the excess drains back into the attached bottle. Thus if I want to run 400ml of XTOL 1:1, I take the tank with the attached bottle off every minute and give it a couple inversions.

Not sure how this would make any difference using a manual roller with the red rubber cap on the tank. Using manual rolling you really have the best of both worlds. Rotation and inversion possible.

Standard recommended speed for 1500 series tanks on my newer CPP3 is 70 rpm, going both directions, it reverses every few revolutions. It's not rocket science. My opinion is you can use recommended rotation speeds, give the tank a couple inversions every minute or two to keep the solution well mixed and not stagnating in the top of the tank.

 

[Radost]

You can use more than the recommended volume of chemistry in rotation, however it's a good idea to take the tank off the rollers and give it an inversion a couple times every minute or so.

I have a Duolab machine, maximum film tank is a 1520. These processors use a special cog on the lid, these require screwing a special 270mL bottle to the tank lid.

On the Duolab you have a difficult time keeping much more that 250ml in the tank in rotation, any more and the excess drains back into the attached bottle. Thus if I want to run 400ml of XTOL 1:1, I take the tank with the attached bottle off every minute and give it a couple inversions.

Not sure how this would make any difference using a manual roller with the red rubber cap on the tank. Using manual rolling you really have the best of both worlds. Rotation and inversion possible.

Standard recommended speed for 1500 series tanks on my newer CPP3 is 70 rpm, going both directions, it reverses every few revolutions. It's not rocket science. My opinion is you can use recommended rotation speeds, give the tank a couple inversions every minute or two to keep the solution well mixed and not stagnating in the top of the tank.

Thank you so much.
Will do.
In my head rotation will give me cleaner more consistent result.
I want to try without inversions kinda simulate an automatic jobo

 

[Donald Qualls]

The red film stopper seam like a nice addition. I wish Paterson made those stoppers.

Won't argue there, but for the price differential between Paterson, Universal, and Arista Premium reels and Jobo reels, I'll stick with the Paterson compatibles. I've used tape to join the two rolls; also tried a piece of the spine strip from a plastic report binder (this leaves an underdeveloped strip on the second frame of the second roll, or the next to last on the first, depending which roll you clip it on). Tape works best in my experience.

 

[mshchem]

China Inc makes a hybrid reel. Paterson/AP/Jobo

 

[Radost]

I don’t care about the price of tanks and reels. In fact that is the cheapest thing in film photography.
A tank and a reel will be as much 36 exposure portra pretty soon

 

[Radost]

China Inc makes a hybrid reel. Paterson/AP/Jobo
View attachment 339396

Have you tried them?

 

[Sirius Glass]

Thank you.
Which jobo tanks?

3010 Expert Drum
1540 Multi Tank

 

[mshchem]

Have you tried them?

I tried one of the very early ones. I wasn't impressed, however the vendor gave me a refund (I think at that time it was $10 free shipping from China). Vendor was looking for feedback, I think it was an early beta version.

No substitute for Jobo, and since the China reels are not cheap.......

Matt King method of simply spooling on the first 120, all the way then feeding in the 2nd 120 behind the first is how I feed Jobo reels, I use the little red thing. Not sure it makes much difference???