Dektol, Permanganate Bleach

My first successful attempt! A previous try ended up softening and washing away the emulsion at the second development stage leaving a clear strip of acetate. After some advice from friends at Kodak, I tested the ph and raised to 1.5 along and lessened the amount of time in the bleach to end up with this result.

7266 B&W Reversal

Dektol (1st Developer)

Kodak Potassium Permanganate Bleach

Clearing Bath

100w Incandescent Bulb Re-exposure

Dektol (2nd Developer)

PROCESS STEPS

  1. Dektol (1:3 Dilution) Develop: 7 minutes (agitate)

  2. Rinse: 2 minutes (agitate)

  3. Kodak Permaganate Bleach: 2 minutes (agitate)

  4. Rinse: 1 minute (agitate)  Rest of directions can be done with tank open under subdued light and just dumping the bath after each step.

  5. Open up tank – dump all liquids from tank. Rinse film spiral under running water for 1 minute.

  6. Clearing Bath: 2 minutes (agitate)

  7. Rinse: 1 minute (agitate)

  8. Re-expose: hold to 100W bulb light source for 2.5 minutes - turning the reel so the light is evenly exposed.

  9. Dektol Re-Develop: 5 minutes (agitate)

  10. Rinse: 2 minutes (running water)

  11. Fix: 4 minutes (agitate)

  12. Rinse: 5 minutes (running water)

  13. Add few drops of Wetting Agent - 5 minutes - agitate slightly to avoid bubbles

  14. Hang to dry (emulsion side out).

NOTE: After mixing the bleach per instructions from Kodak, I tested the pH to .8. I raised the pH using a concentrated NaOH alkaline solution to get the bleach to 1.5

NaOH Solution: Dissolve 50 grams of Sodium Hydroxide (NaOH) in 100mL of water

Had to add about 30-40ml to raise about 3L of bleach. Added small amounts and measured until it got to the target.