Delta 100 + Rodinal 1+50, minimal agitation, results

[timeUnit]

Delta 100 + Rodinal 1+100, minimal agitation, results

Hello!

Per advice from APUG I tried some minimal agitation with Rodinal.

Delta 100 @ ISO 100
Rodinal 1 + 100 (5 ml dev, 500 ml water) 20°C
Agitation: Initial 5 sec, then 5 sec every 5th minute.
Total development time: 26 minutes.
Fix: Hypam 1+4, 7 minutes (the fixer is on its way out)
HCA 2 min, final wash using Ilford method.

Negs look good. Maybe I should have let them stand for 30 minutes to build some contrast, but there is good shadow detail, where applicable. Unfortunately the light was very dull that day and it was really the wrong film for the situation. I shot at f4 1/60 with a 503CX and a 150/4 Sonnar. To really expose for the shadows I should have gone up to 1/30, but that doesn't work handheld.

Will post a scan or two when dried.

Edit: I was aiming for 1+50, but messed up the numbers and did 1+100 instead. Still, the results look OK. Moderator: how about changing the title?

 

[Willie Jan]

5 ml for 500ml water is 1:100

I am working on a test with fuji across in rodinal 1:150, for 30 minutes agitation first 10 secs, than after 10 minutes, than after each 5 minutes until 25min time. and than each minute for the last 5 minutes to get some contrast.

besides that fuji across pyrocat hd, 1:1:100 13min each 30 sec.

Both negatives look good, but the most important thing is what happens to my shadows/highlights when i print it, i don't care about the negative.

 

[timeUnit]

"5 ml for 500ml water is 1:100"

You're totally right! What a klutz I am! :rolleyes:

Still, the results are fine... lucky me...

 

[Willie Jan]

probably you sniffed to much rodinal (just like me...)

 

[Willie Jan]

what i want to test is to confirm that it does not matter if you develop it 30 minutes or 300 minutes for the region zone II.

Somewhere between 20-30 minutes is the break point.

Somehow rodinal is not capable of getting more out of these regions, not even with longer development, but since i do not own a density meter, i have to do a visible inspection to see the difference...
the only thing you do when developing longer is creating a higher contrast.

My fealing is that it needs a minimum of light to get it boosted. Besides that i want to test the pyrocat for the same.. See how this one behaves when longer developed.

 

[Soeren]

"5 ml for 500ml water is 1:100"

You're totally right! What a klutz I am! :rolleyes:

Still, the results are fine... lucky me...

No, it's 1:101. 1:100 is 5ml Rodinal + 495ml water = 500ml total
Not that it matters that much if you does it the same way every time
Cheers, Søren

 

[timeUnit]

what i want to test is to confirm that it does not matter if you develop it 30 minutes or 300 minutes for the region zone II.

Somewhere between 20-30 minutes is the break point.

Somehow rodinal is not capable of getting more out of these regions, not even with longer development, but since i do not own a density meter, i have to do a visible inspection to see the difference...
the only thing you do when developing longer is creating a higher contrast.

Well, that is to expected. After all, zone II is mostly about exposure, and less about developing. Rodinal is not a high speed developer either.

I do not expect to get a higher speed from this combo, but I'm looking for some more contrast. Which I will of course get if I use the right amount of developer...

 

[timeUnit]

No, it's 1:101. 1:100 is 5ml Rodinal + 495ml water = 500ml total
Not that it matters that much if you does it the same way every time
Cheers, Søren

Well, I can easily measure 5 ml of developer, but to measure 495 ml of water would take quite a lot of time with my equipment. When I measure water I use a 1 dl cup, so there's quite a bit of margin for error... my statement of 500 ml of water is in that respect a lie.

 

[titrisol]

Then gainer's perversion of Rodinal comes to help.
Adding 4 g/l (just 1 teaspoon/l) of ascorbate (or vitamin C+carbonate to neutralize it) boosts shadow detail and increases the activity.

what i want to test is to confirm that it does not matter if you develop it 30 minutes or 300 minutes for the region zone II.

Somewhere between 20-30 minutes is the break point.

Somehow rodinal is not capable of getting more out of these regions, not even with longer development, but since i do not own a density meter, i have to do a visible inspection to see the difference...
the only thing you do when developing longer is creating a higher contrast.

My fealing is that it needs a minimum of light to get it boosted. Besides that i want to test the pyrocat for the same.. See how this one behaves when longer developed.

 

[Galaxens President]

No, it's 1:101. 1:100 is 5ml Rodinal + 495ml water = 500ml total
Not that it matters that much if you does it the same way every time
Cheers, Søren

If someone says Xtol 1:1, I interpret that as 1 part Xtol stock and one part water, not 1 part stock solution per 1 part mixed developer. From this I'd also expect Rodinal 1:100 would meen 1 part koncentrate and 100 parts of water. Is there an abuse of notation around here?

 

[avandesande]

You won't get contrast this way. If you need more punch use your usual routine but agitate every 2.5 minutes. Leave the time constant.

Negs look good. Maybe I should have let them stand for 30 minutes to build some contrast, but there is good shadow detail, where applicable. Unfortunately the light was very dull that day and it was really the wrong film for the situation. I shot at f4 1/60 with a 503CX and a 150/4 Sonnar. To really expose for the shadows I should have gone up to 1/30, but that doesn't work handheld.

 

[timeUnit]

You won't get contrast this way. If you need more punch use your usual routine but agitate every 2.5 minutes. Leave the time constant.

This experiment is kind of "wasted" now as I thought I was using 1+50 when I souped it. Next time I'll go with 1+50 and 20 minutes for normal contrast. I'll keep working from there. If I had been using 1+50 at the time I'm certain the contrast would be a bit higher, perhaps "N+1" which was the goal.

The good thing is that I got no uneven development, despite the minimal agitation and Paterson reels. That has been a real problem before, with semi-stand or stand development.

 

[avandesande]

If you really want to understand this combination, only change one variable at a time. Don't change the time AND the dilution.

The key variable with rodinal is agitation.

 

[timeUnit]

If you really want to understand this combination, only change one variable at a time. Don't change the time AND the dilution.

The key variable with rodinal is agitation.

As I said, I won't pursue the 1+100 dilution right now. Since I used the wrong dilution, I'll start over with 1+50.

I just developed another Delta 100 roll in 1+50 (10 ml rodinal, 5 dl water) at 20°C using 5 sec initial agitation, then 5 sec agitation every 5th minute. Total dev time 20 mins. Negs look very nice. I'll soon test what speed I'm getting with this technique.

 

[Gerald Koch]

Then gainer's perversion of Rodinal comes to help.
Adding 4 g/l (just 1 teaspoon/l) of ascorbate (or vitamin C+carbonate to neutralize it) boosts shadow detail and increases the activity.

Of course the activity would increase, you are adding a second developing agent to the mix. However, what you have is no longer Rodinal. Is it better? Maybe yes, maybe no. Has anyone done any exhaustive testing?

 

[kwmullet]

I tried some semi-stand wth Rodinal to total failure. I exposed six sheets of 4x5 HP5+ at EIs from 1600 and up. Rodinal 1:200 at 78 degrees F. (room temperature) done in a yankee tank using every other slot. 9ml Rodinal plus 1800ml distilled water. Agitated for the first minute, then 10 seconds every 30 minutes. no dissernable image at all on any of the sheets except one, that had some faint highlight details. Developed for 2.5 hours.

I'm thinking now the longest I should wait between agitations should be 15min, and that the Yankee tank doesn't have the volume to support 1:200 processing, especially with 6 sheets of film.

Since there were no images at all, I need to make big changes before my next test. Thoughts from the chorus? switch to 1:50, agitation every 10 minutes, for 2 hours? This time, I'll do two sheets each at 400, 800, 1600.

-KwM-

 

[Paddy]

I tried some semi-stand wth Rodinal to total failure. I exposed six sheets of 4x5 HP5+ at EIs from 1600 and up.

I would suggest that you back up even further for your next round of tests. Try exposing at e.i.'s of 160, 200, 250, and 320, since these are some of the more commonly found true film speeds that I've seen for HP5+

 

[timeUnit]

Here's an example from the "correctly" developed roll:

Dead Link Removed

It's a neg scan.