E6 FORMULA
By Derrick Foster
Bob Lewis has passed on this E6 formula from one of the newest members. First and Colour Developers, Bleach, Fixer and Stabiliser are in the B Weights in grams. Liquids in ml.
First Developer
Calgon.................................................................................... 2.0
Sodiurn sulphite,anhyd..................................................... 15.0
Pot. Carbonate, anhyd.................................................. .... 15.0
Hydroquinone ..................................................................... 6.0
Phenidone............................................................................. 0.4
Sodiumthiocyanate. (cryst)................................................ 1.6
Potassium Bromide.............................................................. 2.0
Potassium Iodide....(1%sol.)........................................... 5.0ml
Water to..........................................................................1000rnl
Adjust to pH 9.6.
Stop bath
Acetic Acid, glacial ....................................................... 20.0ml
Water to.......................................................................... l000rnl
Colour Developer ...
EDTA. Tetrasodiuxn salt.................................................... 3.0
Thisodium phosphate, 12H20.......................................... 40.0
Sodium sulphite,anhyd....................................................... 4.0.
Potassium Bromide.............................................................. 0.5
Potassiurn Iodide....(1% sol).......................................... 3.0ml
Citrizinic Acid...................................................................... 1.2
Hydroxylamine hydrochloride........................................... 1.5
CD4,....................................................................................... 7.5
Water to ........................................................................ l000rnl
Adjust to pH 6-1l.7Conditioner
Calgon................................................................................. 200
Sodium metabisulphate................................................... 15.0
Hydroquinone .................................................................. 1. 0
Bleach
Potassium ferricyanide................................................. 100.0
Potassium-Bromide......................................................... 35.0
Di~sodium hydrogen phosphate 12H20...................... 20.0
Water to ........................................................................I000ml
Fixer
Sodium Thiosulphate (Cryst)...................................... 160.0
Sodium sulphite, anhyd ..................................................15.0
Mono-sodium di-hydrogen phosphate 2H20...............13.0
Water to ...................................................................... 1000rnl
Adjust to pH 6o8 (p.s. same Ph for Bleach)Stabiliser. (use once)
Ferrnaldehyde 35/40%................................................. 3.0ml
Distilled water to ....................................................... 1000ml
Capacities
First Dev Colour Dev. & Conditioner. 5 x 36exp per Litre.
Bleach, per, at least 10 x 36exp per litre.
Stop. bath, Stabiliser, One-shot only.
Processing times at 8deg C
As recommended in the B J Annual
First developer .................................................... 7.0 mins. (see below)
Wash......,.............................................................. 2.0 "
Stop bath ............................................................. 1.0 "
Wash...DG..,......................................................... 4.0 "
Re-exposure...... Out of reel. Exposure by flash at 1ft
distance. Flash every 4 inches along the length, both sides.
Colour developer................................................ 6 0 mins. (see below)
Conditioner.......................................................... 2,0 "
Wash.................................................................... 3.0 "
Bleach.................................................................. 3.0 "
Wash.................................................................... 3.0 "
Fixer...................................................................... 3 0 "
Wash Running water......................................... 6.0 "
Stabiliser ........................................................... 1 min
Agitation
Continuous for first 30 sees, then one agitation every half minute for the remaining time.
No agitation for stabiliser
Washing
Change water every 20 sees, agitate continuously.
Developing times for various films
First Dev. Colour Dev.
Fujuchrome 100. Prof.... 8.mins 5.5 mins
Barfen CRX 100 Konica type 7. mins 5.0 mins
Agfachrome Prof 5ORS 7 mins 5.5 mins
NOTE for Agfa:- Reduce the amount of Pot. Thiocyanate to 1.lg per litre, also use Pot. Iodide 10ml per litre, instead of 5ml.
Area 9 Leader, Anthony Green comments....
Derrick has certainly got good results with this method A number of interesting questions arise, I am a bit surprised about the use of one shot stop bath stabiliser, as I would have thought these were indestructible except for a certain amount of carry-over? from only partially previous solutions a The stop bath sounds like Barry Priscott’s, but I don't know the function of Hydroquinone in the Conditioner.
Having noticed the use of Hydroquinone in the Conditioner, your editor too has wondered about its function in this bath.. However, referring to Conditioners I have also noticed that virtually all formulae using EDTA in the BLIX bath or even the
Colour developer use. a conditioner bath. The Photoworld Economy kit used. this bath between the Colour developer and the Bleach baths. This made me wonder if this may be worth considering when using Ron Knowles BLIX in his.’3 bath formula. Roy Salmons explained awhile back that the conditioner conditions the film for recieving the bleach bath. Perhaps someone could explain further.
Ed.