- Joined
- Mar 17, 2014
- Messages
- 22
- Format
- 35mm
The Tetenal kit indeed gives you three processing liquids, but their correct description is quite different:The tetenal C41 kit I bought is apparently 3 bottles worth, Dev/Bleach/Fix and there is mixing of the Bleach and Fix(stabiliser)
I am not and never have been a lover of XP, I always found the colour mask intrusive. How the lab managed to get rid of it (if that's what you mean) and get a grey background this may have something to do with the grain size, I just don't know. The magenta backing is there so it will be able to be printed on a standard lab printer.
The Kodak version CN400 is a much friendlier film to use and this has the normal orange mask similar to colour negative films. I have printed them in my darkroom and managed to get a fully neutral black and white image. Something I have never managed to do with XP.
The Tetenal kit indeed gives you three processing liquids, but their correct description is quite different:
- CD, i.e. Color developer: mixed from CD1, CD2 and CD3 parts and water
- BLIX, i.e. bleach and fixer in one: mixed from BX1, BX2 parts and water
- STAB, i.e. stabilizer: mixed from STAB part and water
Please confirm that you indeed mixed the liquids as listed here, not as you described it. If not, we may have found the problem right there ...
Different C41 developers are as a rule interchangeable so there should not be a great deal of difference. I see what you mean about the increased grain though. I am not and never have been a lover of XP, I always found the colour mask intrusive. How the lab managed to get rid of it (if that's what you mean) and get a grey background this may have something to do with the grain size, I just don't know. The magenta backing is there so it will be able to be printed on a standard lab printer.
The Kodak version CN400 is a much friendlier film to use and this has the normal orange mask similar to colour negative films. I have printed them in my darkroom and managed to get a fully neutral black and white image. Something I have never managed to do with XP.
As Matt (above) suggests try using normal B&W film it is much easier to deal with. This can be bought easily and cheaper than XP via mail order in UK. Order by noon and it is generally there the following day.
Hi filmnumpty. If you conduct this simple experiment, you may be able to answer your own question. Simply repeat the whole process just as you did before, with the reel in the tank, but no film. Instead of chemicals, just use water at the correct temperature for each step. At each step, measure the temperature of the water that you pour from the processing tank. What I think you will find is that despite the temperature of your water bath, the actual process has been carried out at a lower temperature than expected and the result is an under developed and under bleached/fixed film.
The volume of chemicals you are using, plus the short process times, mean that it is very easy to run the process at a low temperature, especially if you are using a plastic tank. A prewash may help (some kits recommend this), but you may find that you can get good results by starting out at a higher temperature and running the process so that the average temperature correct. Experimentation is the key to getting this right.
You may find that the colour and graininess of your already processed films can be improved by bleaching, fixing and washing again, but that is just me guessing. No harm in trying though!
In my experience, the only complication with process C41 is getting the temperature right.
I mixed the kit by mixing the three parts of developer into the correct amount of water i.e. to make one litre of developer. I hope that's right?
I then mixed in another bottle the two parts of bleach and fixer and water.
I then mixed the stabiliser in the third bottle with the correct amount of water.
Not distilled water though. :-(
Re: mixing the Ilfotec developer. I am assuming that it is Ilfotec HC you are using (which is not HC110 - just similar to it).
(EDIT: You should note that with liquid developers like Ilfotec HC, you normally mix up each time just the amount that you need at that time.)
Many developing tanks have information printed on their bottom which shows how much developer is required by your tank to cover the film and reel you are using. If yours is like my Paterson tank, it says that 290 ml is required for each 35 ml roll.
If that is the case for you, I would suggest that you use 320 ml of working strength developer per roll (it will make the arithmetic simple).
To make up 320 ml of working strength developer, add 10 ml of Ilfotec "syrup" to 310 ml of water - you will end up with 320 ml of Ilfotec HC working solution at a dilution of 1+31 (not 1:31 - that is Kodak's way of saying the same thing).
Syringes will work well when measuring the "syrup". The Paterson 45 ml graduated cylinder is also a useful tool for mixing small quantities.
If you have a graduated cylinder that has a line for 325 ml, and you are careful, it should work fine if you add 10 ml of syrup to some water and then bring the total volume up to the 325 ml line. The extra 5 ml or so of water (in 315) won't make enough of a difference to matter.
If you have measuring equipment that is more accurate, you could mix exactly 290 ml of working strength developer by using the following formula: amount of syrup = total volume needed / 32. So for 290 ml, the calculation is 290/32 = 9.0625 ml syrup, plus water to bring the total volume to 290 ml. But why would you bother?
Hope this helps.
EDIT: In case you don't already have it, here is the link to Ilford's data sheet for Ilfotec HC: http://www.ilfordphoto.com/Webfiles/2011427105392231.pdf
There is no reason to adjust the temperature below 21C - just adjust the time to go with the 21C.
Most likely, the problems with your film are related to your struggles loading the reel. I have two hints: make sure the reel is as dry as possible, and practice with a test roll.
And stand development is not a good choice for general purpose photography. It is a specialized technique, with bost pros and cons associated with it.
The film curl should match the reel.
And be careful of the Massive Development chart. It is a bit like wikipedia. If you have manufacturer's recommendations, it is better to start with them as you know the source.
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