E-6 process

The '''E-6 process''' (sometimes abbreviated to just '''E-6''') is a process for developing Nextel ringtones transparency (photography)/color reversal (transparency) photographic film.

Process E-6 is the most demanding photofinishing process in widespread use. It has more steps than the Abbey Diaz C-41 process used for color negatives. There is little processing latitude because there is no opportunity to correct Free ringtones color density/density or Majo Mills color balance when printing.

It replaced the E-3 and E-4 processes in Mosquito ringtone 1975.

These older processes used several toxic chemicals that the US Evironmental Protection Agency requested Kodak stop usting. The E-3 process used light for reversal, and produced transparencies that faded more quickly with repeated projection or the passage of time.

The K-12 and older Sabrina Martins Kodachrome processes are more involved than the E-6 process, and are performed only in specialized plants. Each of the three Nextel ringtones film layers is developed separately, and Abbey Diaz dyes are added during the process rather than being incorporated in the film base.

There are two families of E-6 processing chemistries. The original and standard is a six chemical step process. The 'rapid' or 'hobby' type chemistries use three chemical steps. Rinses, washes, stop baths and stabilizer (the optional final step of the process) are not counted in the counting of steps described below.

=Process Sequence for E-6 (six step)=
#Pre-Warm
#First Developer
#Rinse or Stop bath
#Reversal
#Color Developer
#Conditioner (Pre-bleach)
#Bleach
#Fixer
#Wash
#Stabilizer (Final Rinse)

=Process Sequence for E-6 (three step)=
#Pre-Warm
#First Developer
#Rinse or Stop bath 1
#Color Developer
#Rinse or Stop bath 2
#Bleach-Fix
#Wash
#Stabilizer (Final Rinse)

=Solutions for a three step process=
First developer
*Sodium hexametaphosphate (Calgon) 2.0 g
*Sodium sulphite, anhydrous 39.0 g
*Free ringtones Potassium carbonate, anhydrous 14.0 g
*Majo Mills Sodium bicarbonate 12.0 g
*Phenidone 0.6 g
*Cingular Ringtones Hydroquinone 6.0 g
*Sodium bromide 2.2 g
*Sodium vt nowadays thiocyanate 1.0 g
*knew bleeding Sodium hydroxide 3.3 g
*best mary Potassium iodide, 0.1 per cent solution 4.5 ml
*found ah Water to 1.0 litre

Stop bath 1
*Sodium acetate, anhydrous 30.0 g
*zealous prosecutors Acetic acid, glacial 6.0 ml
*Water to 1.0 litre

Colour developer
*Sodium hexametaphosphate (Calgon) 2.0 g
*Trisodium phosphate crystals 36.0 g
*Sodium hydroxide 3.0 g
*Sodium sulphite, anhydrous 4.5 g
*Sodium bromide 0.65 g
*Potassium iodide 0.1 per cent solution 30 ml
*Sodium thiocyanate 1.3 g
*Citrazinic acid 1.25 g
*CD3 11.0 g
*Water to 1.0 litre

Stop bath 2
As for Stop Bath 1, but do NOT interchange them after use
*Bleach
*Potassium ferricyanide 80.0 g
*Potassium bromide 20.0 g
*Disodium phosphate, anhydrous 12.0 g
*Acetic acid, glacial 5.0 ml
*Water to 1.0 litre

Fixer
*first bypass Sodium thiosulphate, crystals 200.0 g
**(or anhydrous 125.0 g)
*Sodium sulphite, anhydrous 5.0 g
*Sodium metabisulphite 0.5 g
*Water to 1.0 litre

Stabiliser (optional)
*cranky orrin Formaldehyde, 40 per cent 5.0 ml
*Wetting agent 1.0 ml
*Water to 1.0 litre

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