Rodinal Masters help, Please!

This is regarding Rollei ATP in Rodinal. The massive developing chart says 12 min at 20 deg C and ISO 25 at 1:300. Is this accurate? What I need are particulars. Agitation? I have seen posts where one person did it at 1:300 but contrast was still high and one other that did it at 1:150 but nobody says about agitation. Would it help to try and do a semi-stand development or would that just complicate things?

I will do tests when it arrives, the Rodinal is already here. From what I have read of Rodinal, I should probably give more exposure like around iso 12 or 16. Is this accurate? If I do that I'll reduce the developement. Just wanted to get the ear of the Rodinal masters and try to ready when it arrives.

Thanks in advance!
Phillip

All Rodinal Church members welcome!

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ATP1.1 in Rodinal 1+150 for 6:30 minutes will do the job. However the iso rate is 12-15 only.

There for more practical reasons you can use the Rollei Low Contrast (RLC) document developer for an iso rate of 20-25.

With the special made ATP-DC developer you will get full iso 32-40 rate.

Here an example in Rodinal 1+150. Keep in mind that your real minimum of concentrate must be around 5ml for each 135-36 or 120 roll film.




Here the same type of scene in Efke 25 and a Beutler developer 1+1+10 7:00 minutes.

Thank you Robert, I have read all the info on 1:150 and as far as the other developers I have no access in Taiwan. I will just test at 300

I can believe no one out there can help with agitation or if a semi-stand would help tame the contrast of this film. Maybe I just ask the wrong questions, that's probably it.

I can believe no one out there can help with agitation

Click to expand...

It's a specific film question with an unusual developer combination.
My agitation: First 30 S continuous then every 30 S 1x slowly.

The result you can see above. Even with 1+150 Rodinal, ATP1.1 tends to a steep developing curve with this developer.
Further the iso rate is low.

If you have problems in getting the RLC or ATP-DC maybe a POTA DIY developer is a possibility for you.