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There is really no reason why someone would find themselves in this "shortage" situation, except by careless error, and for that this a valuable video. Either the volume requirement is printed on the tank, or lack such, you start by measuring the amount required to fill the tank before you load the film. However, the issue of "how much" seems to repeat in Comments endlessly. Many seem concerned that they use the minimum volume of developer as a cost measure. When you consider the cost of time and money to shoot your photos, then the cost of film itself, the cost of chemistry per roll is almost negligible. The cost of using 50 or 100 ml more of D-76 1:1, Rodinal 50:1, or whatever you prefer is what, maybe a dime? So as a rule, use more than the minimum just be be safe. If you use highly diluted developer working solutions, you must also be sure that there is enough stock developer in your working solution to put enough developing agent in the tank. That is a more subtle problem.

Thank you! I suspected this was what was wrong with my last results, but now I know for certain.

Thank you for posting this great video, i'm def in the 'Picture' regarding developing. 🙂

I like your talking style. My monitor is now perfectly cleaned from the inside.

I can’t wait for more of these videos!

What a great video! Looking forward for the next video in this series.

Yeah but you also get this error of to little liquid when you use third party reels. I use the patterson system and i bhought some kaiser reels recently. Appartly the reel moves up the column during aggitation thus creating the same error. Using a rubber band so it doenst move up is a solution that also works!

Excellent Nicos .

Thank you Nicos that explain what happened to me too .

I have had similar issues using 120 Film in a Paterson Tank but not as bad as these, only really noticeable in the bright area on the edge of the film. I chatted with the Boss of Paterson at a show in the UK and he said to use the little twiddling stick that comes with the Paterson Tank to agitate when developing 120 Roll Film which is what I now do. I also recommend making sure the film reel is all the way to the bottom of the Centre Column when putting the reel in the tank, I have cut a little spacer which fits over the centre column, now the reel cannot move upwards. I also use 600 Ml of Chemistry when developing film in a Paterson Tank.. Hope this might be of use to someone.

Congrats for the skillshare sponsorship Nico!

Hi Nico. First of all, thanks for all your videos. Second: I develop all my TMax with TMax Dev and always use the rotating tank technique. BUT, I don't use the same times, nor the same dilution!!! If I try to develop a film roll with the same dilution and the same times I use in normal under normal developing, I get an overdeveloped negative. In fact, it happened to me once ... I understand that JOBO gives you special instructions for rotation development ... Gracias y saludos!

awesome series idea!

Great video Nico!

Excellent video! Please do more👍🏻

Good to know, thank you.

Great content

Thank you!

I have had the same issue recently, when I used Ilfosol 3 instead of ID-11. I found it weird it happened when I changed developer, but also tried more developer. 540mL instead of 500mL, but then still had the issue. New hypothesis is, that it is due to my new/very fast stopbath, without agitation. I already did this with using ID-11, but the time for FP4+ is 7:30 (Ilfosol 3 1+14) vs 20:00 (ID-11 1+3). Because ID-11 works much slower, I haven't noticed the insufficient stopping there. I developed another roll tonight, now with a longer stop. I'll scan it tomorrow and see if it's fixed.

Can't wait for the rest of the series! I'm having an issue where I get black dots on my paper after development. It's not the film because the dots are not in the same place for multiple prints from the same negative.

Thank you for the nice tip. Strange strip appears several time in my past.. Anyway, she looks cute!

Coincidentally I had this issue for the first time yesterday when I developed a roll of XP2 in my Paterson tank. I had a working solution of Tetenal C-41 of 500ml instead of the usual 1L. After the first development I lost some chemical by spilling out of the tank. It must have been around 490ml but that was enough for the dreadful stain to appear on the side. I don't agitate too much because both my Jobo and Paterson tanks don't hold well. So rolling the tank is probably not the best option for me. My question is, can I add 20ml of plain water in the mix and perhaps compensate the process by adding another 15"? From 3:15" to 3:30".

thaks. happen one time :)

This happened to me the first time I developed two rolls of 35mm in one tank. Couldn’t figure out what had happened to the top roll. 😓

Hello Nico, when is recommended to push the cap on the Jobo lid: before or after attaching? I have developed tons of reels in the the Jobo processor but I see this pushing cap technique for the first time in this video. Cheers

Are you sure this works with Paterson tanks? As the drainage holes on the Paterson is around the edge of the lid

Great video! could you do one on developing prints in the jobo drum tank? I keep getting issues when making 8X10 prints with my jobo cpe2. similar to this video, undeveloped marks on the top and middle of the prints and I'm finding it hard to get advice on how to fix

Great video! I would love to see videos on what happens if you leave leave the film in the developer too long, or too short. Thanks!!!

Would be helpful if you had different types of badly developed film and be able to identify what went wrong. C41 especially. Very hard to pinpoint.