Development times
Showing 2 of 79 published times.
Reuse
Checked 21 October 2026
Ilford says Ilford Ilfotec RT Rapid 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: Replenishment: about 18 mL per 135-36 film at 1+1+2 and about 27 mL at 1+1+5.
ILFORD ILFOTEC RT RAPID is a replenishable developer for machine processing all general-purpose black and white films, it must be used in conjunction with ILFORD ILFOTEC RT RAPID STARTER solution. ... It is not recommended for developing films in dip and dunk (hanger) or rotary tube or continuous long leader processors or deep tanks, spiral tanks and dishes (trays). ... The recommended replenishment rates of ILFOTEC RT RAPID are: 1+1+2 350 mls/sqm, approx 18 mls per 135-36exp film; 1+1+5 610 mls/sqm, approx 27 mls per 135-36exp film.
ILFOTEC RT RAPID Technical Information (Harman, Feb 2024, 10 pp.) ↗
Dilutions
- 1+1+2 2 + 2 water
- 1+1+5 2 + 5 water
Link to this page
Specification
- Type
- B&W developer
- Form
- Liquid concentrate
- Capacity rolls per litre
- —
- Shelf life, unopened
- —
- Shelf life, opened
- —
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