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Eastman Kodak Company

T-Max RS

B&W developer Liquid concentrate In production Reusable Replenishable

Development times

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Showing 1 of 372 published times.

Film Dilution EI Time Source
Ilford Delta 100 Pro stock 24.0 °C 200 push 1 stop 8:00
Verified Datasheet Report

Reuse

Checked 21 October 2026

Kodak says Kodak T-Max RS may be used for more than one film. It can also be replenished.

The maker doesn’t publish a rule for lengthening the time, so the calculator makes no correction.

Capacity, as the maker states it: Tank: 16 8x10-inch sheets per gallon (4 per litre); the capacity can be increased by replenishment (45 mL per 135-36 or 120 roll).

Mixed solution used as a working-tank solution or a replenisher. ... Add 1 1/2 fluid ounces (45 mL) of solution for each 135-36 or 120 roll or 8 x 10-inch sheet (or equivalent) processed. Stir or recirculate the solution thoroughly after each addition of replenisher solution. ... Note: Do not use KODAK T-MAX RS Developer and Replenisher to replenish KODAK T-MAX Developer.

KODAK PROFESSIONAL T-MAX Developers (KODAK Publication J-86, December 2017, 8 pp.) ↗

Dilutions

  • stock undiluted stockStock solution The concentrated form of a chemical, or a developer used undiluted. Read more in the glossary ›
  • 1+4 1 + 4 water
  • 1+7 1 + 7 water
  • 1+9 1 + 9 water

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Specification

Type
B&W developer
Form
Liquid concentrate
Capacity rolls per litre
—
Shelf life, unopened
—
Shelf life, opened
—

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