Correct dev time for Rollei RPX25 with Ilfosol3 ? Update at #12

kl122002 · Jun 25, 2022

I just noticed the dev time of Rollei RPX 25 with Ilforsol 3 is different inside the box / the data sheet

The box (also the data sheet from Rollei) says 1+19 for 5min at 20C .

But from here , it says 1+9 for 5min at 20C.

Film Development Chart | Developing time for 135 Rollei RPX 25 at 25|15° in Ilford Ilfosol 3 at dilution 1+9, temperature 20 °C | 68 °F and agitation 30 Sekunden

Development time for 135 Rollei RPX 25 at 25|15° in Ilford Ilfosol 3 at 1+9 and 20 °C | 68 °F

darkroom-solutions.com

So which dilution is correct?

Andrew O'Neill · Jun 25, 2022

I would feel more comfortable using Rollei's data. That said, it's best to work out your own times.

Fluidphoto · Jun 25, 2022

Massive Dev Chart says 1:9 as well. It might just be a typo in the box.

kl122002 · Jun 25, 2022

The Massive dev chat's info is refer to Rollei data sheet from 2015, while the current data sheet version is 2021 ...
should I just follow the new one ?

MattKing · Jun 25, 2022

The MDC has both good data and unreliable data in it, and it is often difficult to differentiate between them.
Always approach the MDC with caution.

foc · Jun 25, 2022

Ilfosol 3 is diluted either at 1+9 or 1+14. I have used it form many years and I never heard of 1+19 so I would assume it is a typo.

5 mins at 1+9 @ 20C sounds right.
I know 1+14 isn't listed for your film but I would think if it was it would be around 7.5mins.

Andrew O'Neill · Jun 25, 2022

The more I think about it, the more I don't feel comfortable with the dilution and time inside the box. The 1+19 is most likely a typo. 1+9 at 5 min. would make more sense... but if it were me, I'd go with 1+14 at around 9.5-10.5 minutes, 20C. I've always stayed away from short development times.

Andrew O'Neill · Jun 25, 2022

... and I should warn you that I generally develop film for much longer than most people.

awty · Jun 25, 2022

Ive only used it ilfosal 3 with Rollie 25 once. It was 5 minutes at1:9.

Rollie 25 is very contrasty film and builds up density in the high lights very quickly.

Depends on what you are photographing, here is a few examples, notice in a high contrast scene on the second there is too much density in the highlights. You really have to be careful with ilfosal 3 not to over develop the highlights.

kl122002 · Jun 25, 2022

Andrew O'Neill said:
The more I think about it, the more I don't feel comfortable with the dilution and time inside the box. The 1+19 is most likely a typo. 1+9 at 5 min. would make more sense... but if it were me, I'd go with 1+14 at around 9.5-10.5 minutes, 20C. I've always stayed away from short development times.

I don't afraid of higher dilution . Actually I am in Asia and the temperature around here is now >30C, and the water sometimes temperature >28C everyday. For higher dilution I could use a shorter time (like 4 -5 mins) c, just like reference temperature at 20C.

awty said:
Ive only used it ilfosal 3 with Rollie 25 once. It was 5 minutes at1:9.

Rollie 25 is very contrasty film and builds up density in the high lights very quickly.

Depends on what you are photographing, here is a few examples, notice in a high contrast scene on the second there is too much density in the highlights. You really have to be careful with ilfosal 3 not to over develop the highlights.

Thanks for tips .

I looked back to the box and data sheet and noticed the Rollei Supergain developer is actually quite similar to Ilfosol 3. I would adjust the timing with reference to Supergain and let you know whether it works or not .

Andrew O'Neill · Jun 25, 2022

kl122002 said:
I don't afraid of higher dilution . Actually I am in Asia and the temperature around here is now >30C, and the water sometimes temperature >28C everyday. For higher dilution I could use a shorter time (like 4 -5 mins) c, just like reference temperature at 20C.

Thanks for tips .

I looked back to the box and data sheet and noticed the Rollei Supergain developer is actually quite similar to Ilfosol 3. I would adjust the timing with reference to Supergain and let you know whether it works or not .

I lived in Japan for many years so I know what hot and humid weather is like and how it can effect how one develops film. Cold water was often 30C straight out of the tap during Summer months. I never ever developed film at that temperature though. Instead, I used ice to cool the water, and even kept containers of water in the fridge.

kl122002 · Jun 26, 2022

Update : it worked and worked well !

Ilfosol 3 in 1+14 at 23C for 4:30. 5 inversions at each minutes.
Ilfostop for 10s
Rapid Fixer for 4:30,
Washed with water and dishwashing detergent at the end and raised with tap water

The base slightly pale bule. But overall is clear.

Photos taken by Konica Auto S1.6

kl122002 · Jun 26, 2022

Andrew O'Neill said:
I lived in Japan for many years so I know what hot and humid weather is like and how it can effect how one develops film. Cold water was often 30C straight out of the tap during Summer months. I never ever developed film at that temperature though. Instead, I used ice to cool the water, and even kept containers of water in the fridge.

Yea, the temperature is getting hotter these days and its getting more troublesome . But I really prefer 25-27C for shorter developing time, especially using Ilford's Microphen or Perceptol.

Correct dev time for Rollei RPX25 with Ilfosol3 ? Update at #12

kl122002

Film Development Chart | Developing time for 135 Rollei RPX 25 at 25|15° in Ilford Ilfosol 3 at dilution 1+9, temperature 20 °C | 68 °F and agitation 30 Sekunden

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Correct dev time for Rollei RPX25 with Ilfosol3 ? Update at #12

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