Kodak C-41RA manual Monitoring Your Film Process, Process C-41 Cycle

Starting-Point Replenishment Rates—

Process C-41B

	Starting-Point
	Replenishment Rate
Solution
	mL/135-24	mL/25-Exp
	Roll	ADVANTIX Film
	(mL/m)	(mL/m)*
FLEXICOLOR Developer	19 (17)	11.1 (10.2)
Replenisher LORR
FLEXICOLOR Bleach III	5 (4.5)	3.4 (3.1)
NR Replenisher
FLEXICOLOR Fixer and	35 (32)	24 (22)
Replenisher
FLEXICOLOR Final Rinse	40 (36)	27 (25)
and Replenisher

*These rates are averages based on an estimated film-speed mix in 25-exposure rolls of KODAK ADVANTIX Films.

Process C-41

This process cycle is sometimes used in older minilabs. It most commonly includes water washes. To use the washless version of this cycle, follow the recommendations in the second footnote under the table.

Process C-41 Cycle

Solution/Step	Time*	Temperature
	min:sec	°C (°F)
FLEXICOLOR		37.8 ±	0.15
Developer Replenisher	3:15
		(100.0 ±	0.25)
LORR
FLEXICOLOR Bleach	4:20 to 6:30	38 ±	3
III NR Replenisher		(100 ±	5)
Wash†	1:00 to 3:15	24 to 41
		(75 to 105)
FLEXICOLOR Fixer	4:20 to 6:30	38 ±	3
and Replenisher‡		(100 ±	5)
Wash†	2:10 to 3:15	24 to 41
		(75 to 105)
FLEXICOLOR		24 to 41
Final Rinse and	1:05
		(75 to 105)
Replenisher
Dry	As needed	40 to 68
		(104 to 155)

*Immersion time plus crossover time to the next tank. Bleach, fixer, and final rinse times are minimums; longer times are acceptable.

†Use a two-stage countercurrent-flow wash. For a single-stage wash, double the replenishment rate.

If your minilab uses a final rinse step instead of a final wash, eliminate both washes. Use three countercurrent-flow final rinse tanks with a minimum final rinse time of 2:20 (0:47 in each tank). Use a final rinse temperature of 38 ± 3°C (100 ± 5°F) and a replenishment rate of

40 mL/135-24 roll (36 mL/m).

‡Use two countercurrent-flow fixer tanks with equal times in both tanks (2:10 to 3:15).

Starting-Point Replenishment Rates—

Process C-41

	Starting-Point
	Replenishment Rate
Solution/Step
	mL/135-24 Roll	mL/25-Exp
		ADVANTIX Film
	(mL/m)	(mL/m)*
FLEXICOLOR Developer	19 (17)	11.1 (10.2)
Replenisher LORR
FLEXICOLOR Bleach III	5 (4.5)	3.4 (3.1)
NR Replenisher
Wash	1250 (1080)†	850 (734)†
FLEXICOLOR Fixer and	35 (32)	24 (22)
Replenisher
Wash	1250 (1080)†	850 (734)†
FLEXICOLOR		27 (25)‡
Final Rinse and	35 (32)‡
Replenisher

* These rates are averages based on an estimated film-speed mix in 25-exposure rolls of KODAK ADVANTIX Films.

†For a two-stage countercurrent-flow wash. Double this rate for a single-stage wash.

‡If your minilab uses a final rinse instead of washes, use a replenishment rate of 40 mL/135-24 roll (36 mL/m) or

27 mL/25-exposure roll (25 mL/m) of ADVANTIX Film.

Monitoring Your Film Process

Use KODAK Control Strips, Process C-41, to monitor your film process. Follow the procedures described in KODAK Publication No. Z-100, Using KODAK Chemicals in Minilabs, or Z-131, Using KODAK FLEXICOLOR Chemicals.

Choosing the Right Chemicals for Your Minilab • J-36 3