Replenishment (photography)

Replenishment is a component in the processing of photographic film and paper, where fresh chemistry is used to replace exhausted chemistry in a continuous or per-batch fashion. Replenishment rates are calculated by the quantity of film processed in each individual bath; as well as by the amount of film push-processed in the E-6 process; and by film type in the C-41 process.

C-41 and C41-RA process replenishing

C-41 color developer exhaustion volumes vary according to the speed and contrast of the films. Kodak documents replenishment rates for various Kodak color negative films^[1] (specifically, see Table 3-2 in Section 3^[2]).

External links

Kodak process E6 Ektachrome (color transparency) processing manual Z-119
Kodak process E6 Q-LAB processing manual Z-6 (more details than processing manual Z119 above)
Kodak RA-4 process lab manual Z-130

References

^ "Processing (Z) Manuals: Z-131". KODAK (B2B). Archived from the original on 2010-12-03. Retrieved 2025-07-26.
^ "Sink-Line, Batch, and Rotary-Tube Processors" (PDF). KODAK (B2B). Archived from the original (PDF) on 2005-03-07. Retrieved 2025-07-26.

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[1] "Processing (Z) Manuals: Z-131". KODAK (B2B). Archived from the original on 2010-12-03. Retrieved 2025-07-26.

[2] "Sink-Line, Batch, and Rotary-Tube Processors" (PDF). KODAK (B2B). Archived from the original (PDF) on 2005-03-07. Retrieved 2025-07-26.

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