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Chemistry, Photo, Pointers
2011-10-03 (Monday, week 40) at 18:58
Found here… which might turn up more, and has a “D76” recipe.
2012-04-04 (Wednesday, week 14) at 21:03
More of “D 76”, theory to back up an addition of boric acid.
2012-04-28 (Saturday, week 17) at 11:40
E76, metol replaced
2012-10-12 (Friday, week 41) at 19:24
2011-10-14 (Friday, week 41) at 17:55
D76H recipe here:
2011-10-23 (Sunday, week 42) at 16:00
Adjusting development, development with Agfa-chemistry around 1910:
Rodinal explained… :-)
2011-10-24 (Monday, week 43) at 18:27
Start with 75 ml of hot triethanolamine
9 g ascorbic acid
0.25 g phenidone
Stir until completely dissolved, then top up to 100 ml with triethanolamine
Working solution: Dilute the stock solution 1+50 (20 ml per litre) with water before use. Developing times for 400-speed B&W films are around 9 min at 22C.
– http://en.wikipedia.org/wiki/Triethanolamine, CAS 102-71-6
– http://en.wikipedia.org/wiki/Ascorbic_acid, CAS 50-81-7
– http://en.wikipedia.org/wiki/Phenidone, CAS 92-43-3
2011-10-24 (Monday, week 43) at 19:44
D-23, D23, an alternative to D76
http://en.wikipedia.org/wiki/Sodium_sulfite, CAS 7757-83-7
http://en.wikipedia.org/wiki/Metol, CAS 55-55-0
2011-11-02 (Wednesday, week 44) at 19:11
A set on flickr, appears to contain a load of info and pictures: XTOL, and the lot…
2011-11-03 (Thursday, week 44) at 18:30
Slow, high contrast films, developer that is low contrast = nice images:
2011-11-05 (Saturday, week 44) at 22:06
2011-11-06 (Sunday, week 44) at 10:02
2011-12-22 (Thursday, week 51) at 17:48
Stop bath, Citric acid and Vinegar:
The next post – below it – mentions fixation, Sodium Thiosulphate and Boric acid.
2011-11-26 (Saturday, week 47) at 14:17
Some more old developer types to try:
2011-11-27 (Sunday, week 47) at 15:18
Koolantol, car antifreeze, ascorbic acid, phenidone, washing soda:
2011-11-29 (Tuesday, week 48) at 17:54
The “Fenomenal” developer, parodinal mixed with among other things phenidone and borax.
2012-03-01 (Thursday, week 09) at 21:04
Another variant of paRodinal, or is it the same?
2012-03-03 (Saturday, week 09) at 23:04
Yet another “Rodinal” type on Paracetamol, E223 (Sodium metabisulfite) and Lye (NaOH)
2012-09-19 (Wednesday, week 38) at 18:38
Sodium metabisulfite and lye…
2012-03-03 (Saturday, week 09) at 23:27
2012-08-14 (Tuesday, week 33) at 14:52
paRodinal, making your own – simple description.
http://en.wikipedia.org/wiki/Paracetamol – CAS 103-90-2
http://en.wikipedia.org/wiki/Sodium_sulfite – CAS 7757-83-7
http://en.wikipedia.org/wiki/Sodium_hydroxide – CAS 1310-73-2
might be good for cleansing off the precipate from tablets.
2011-12-03 (Saturday, week 48) at 18:25
Useful links to ebay, for finding chemicals like Phenidone and KBr (Potassium Bromide)
2011-12-06 (Tuesday, week 49) at 19:52
Developer formulas, Two-bath developers included.
2012-01-16 (Monday, week 03) at 20:46
Simple phenidone based developer:
A simple recipe is 0.02g phenidone + 0.8g ascorbic acid + 5g sodium carbonate in 1L water for an 8 min developer.
2012-01-16 (Monday, week 03) at 21:11
Well, then how do I get the chemicals – I have yet to find a way: Example;
2012-01-16 (Monday, week 03) at 21:17
The basics, how developers work:
2012-01-29 (Sunday, week 04) at 11:12
GSD-10, homemade developer
Distilled water 750ml
Sodium sulfite 100g
Sodium carbonate 150g
Distilled water to 1 liter
2012-02-26 (Sunday, week 08) at 11:35
2012-02-27 (Monday, week 09) at 19:32
2012-03-28 (Wednesday, week 13) at 19:54
2012-04-26 (Thursday, week 17) at 18:24
Cook potatoes, make developer from the water you used:
2012-04-27 (Friday, week 17) at 16:38
Malic acid (in apple juice!) + ascorbate…
But this turned out to be Rodinal doing the thing…
2012-06-06 (Wednesday, week 23) at 09:10
Obsidian Aqua catechol staining developer
More / same:
2012-06-12 (Tuesday, week 24) at 20:17
Coffe, Vitamin C, Rodinal….
2012-08-10 (Friday, week 32) at 18:45
Mixing XTOL and Rodinal, Making Ascorbate and using that instead of XTOL
“If you’re doing stand development you could always try mixing in some Xtol (in the ratio 1 Rodinal + 20 Xtol stock + 80 water) which has worked for me to reduce grain for faster films. Or you could try Thornton’s suggestion of adding sodium ascorbate at 1g/L to a 1+100 dilution of Rodinal. Not ascorbic acid, though, because that lowers the pH.
I’ve been told that an easy way to get sodium ascorbate is to mix 0.5g of baking soda with 1g of ascorbic acid in a little water and wait for the fizz to stop. Add water to 1L and mix in the Rodinal.
I haven’t tried either of these with UN54, but they are the two mechanisms to reduce Rodinal grain that I’ve encountered which don’t damage its acutance.”
Kodalk, Kodak balanced alkali, Metaborate, replacement:
One use, just a few posts earlier:
“Substitute for every 10g of metaborate a mix of 7g of Borax + 1.5g of Sodium Hydroxide.”
Barry Thornton’s suggestion about using Sodium Metaborate/Kodalk: Make a solution of 2 heaped teaspoons to 1 litre and develop your film for half to two thirds of the usual time. Dump the developer, pour in the Sodium Metaborate solution, invert once and let it stand for 3 minutes. Then dump that, stop, wash, fix etc. as normal.
Thornton suggested this because it gives you an automatic contrast adjustment like in a two bath developer that makes the images easier to print or scan.
2012-08-10 (Friday, week 32) at 19:13
This is “Ansel Adams D23” bath B: 10g metaborate in one liter water
Go on reading at “The Teaspoonful Two Bath” behind the link at “Source” above.
2012-09-26 (Wednesday, week 39) at 20:10
http://www.awh-imaging.co.uk/barrythornton/2bath.htm + "Continue"
At the very end:
…. "Simply use your normal standard developer (T-Max, ID11, llfotech, HC110, Econotol, Perceptol etc.) for half to two thirds of the maker’s stated time as Bath A, drain it off, and use the teaspoon-measured Bath B for 3 minutes at the same temperature as Bath A. You may have to fine tune Bath A time by experience. For all 2 baths stop and fix afterwards in the usual way after Bath B, but not between the two baths"
… which is what I have been trying a couple times:
I’m replacing 10g/L "metaborate" based on a substitution formula I found somehwere: 7.5g Borax and 1.5g Sodium Hydroxide (I’m using decahydrate Borax, Na2B4O7·10H2O and NaOH).
The above photos were developed with 9 and 1.8g in 1 liter water – for a 12g metaborate recipe. (12/10 of the above)
Now compare that to "D23" and "Barry Thornton higher definition formula" as stated on the "continue" page above.
Anhydrous Sodium metaborate: BNaO2
… it appears the above is a lot cheaper.
Might there be any differences in the result? I bet it isn’t much.
2012-08-16 (Thursday, week 33) at 14:07
Caffenol – expanded… ( “Cardinal” developer )
2012-09-30 (Sunday, week 39) at 17:46
Fine grain delevelopers and film, mentioned:
2012-11-03 (Saturday, week 44) at 21:24
A few more tips and tricks, among others C41 based on CD-4
2013-02-26 (Tuesday, week 09) at 21:52
2014-01-20 (Monday, week 04) at 19:25
The Sabbattier effect, Solarization, a developer
Dr. Jolly’s Solarization Developer is a homebrew and very similar alternative:
Water 750 ml
Sodium Sulfite (anh) 38g
Sodium Carbonate (anh) 34g
Water to 1L
2014-04-03 (Thursday, week 14) at 17:41
PG110B developer, by https://www.flickr.com/photos/jay_defehr/
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