Ilfotec RT Rapid
B&W developer
Liquid concentrate
In production
Reusable
Replenishable
Development times
| Film | Dilution | EI | Temp | Time | Agitation | Source |
|---|---|---|---|---|---|---|
| Pan F Plus | 1+1+2 | 50 | 26.0 °C | 0:40 | Machine — continuous | |
| Pan F Plus | 1+1+5 | 25 pull 1 stop | 26.0 °C | 0:45 | Machine — continuous | |
| Pan F Plus | 1+1+5 | 50 | 26.0 °C | 0:50 | Machine — continuous | |
| FP4 Plus | 1+1+2 | 50 pull 1.25 stops | 26.0 °C | 0:40 | Machine — continuous | |
| FP4 Plus | 1+1+2 | 125 | 26.0 °C | 0:45 | Machine — continuous | |
| FP4 Plus | 1+1+2 | 200 push 0.75 stops | 26.0 °C | 0:54 | Machine — continuous | |
| FP4 Plus | 1+1+5 | 50 pull 1.25 stops | 26.0 °C | 0:55 | Machine — continuous | |
| FP4 Plus | 1+1+5 | 125 | 26.0 °C | 1:05 | Machine — continuous | |
| FP4 Plus | 1+1+5 | 200 push 0.75 stops | 26.0 °C | 1:24 | Machine — continuous | |
| Ilford Delta 100 Pro | 1+1+2 | 100 | 26.0 °C | 0:40 | Machine — continuous | |
| Ilford Delta 100 Pro | 1+1+2 | 200 push 1 stop | 26.0 °C | 0:50 | Machine — continuous | |
| Ilford Delta 100 Pro | 1+1+5 | 50 pull 1 stop | 26.0 °C | 0:40 | Machine — continuous | |
| Ilford Delta 100 Pro | 1+1+5 | 100 | 26.0 °C | 0:56 | Machine — continuous | |
| Ilford Delta 100 Pro | 1+1+5 | 200 push 1 stop | 26.0 °C | 1:15 | Machine — continuous | |
| Ilford HP5+ | 1+1+2 | 400 | 26.0 °C | 1:00 | Machine — continuous | |
| Ilford HP5+ | 1+1+2 | 800 push 1 stop | 26.0 °C | 1:15 | Machine — continuous | |
| Ilford HP5+ | 1+1+2 | 1600 push 2 stops | 26.0 °C | 1:31 | Machine — continuous | |
| Ilford HP5+ | 1+1+2 | 3200 push 3 stops | 26.0 °C | 1:48 | Machine — continuous | |
| Ilford HP5+ | 1+1+5 | 400 | 26.0 °C | 1:10 | Machine — continuous | |
| Ilford HP5+ | 1+1+5 | 800 push 1 stop | 26.0 °C | 1:35 | Machine — continuous | |
| Ilford HP5+ | 1+1+5 | 1600 push 2 stops | 26.0 °C | 2:00 | Machine — continuous | |
| Ilford HP5+ | 1+1+5 | 3200 push 3 stops | 26.0 °C | 2:46 | Machine — continuous | |
| SFX 200 | 1+1+2 | 200 | 26.0 °C | 0:54 | Machine — continuous | |
| SFX 200 | 1+1+2 | 400 push 1 stop | 26.0 °C | 1:05 | Machine — continuous | |
| SFX 200 | 1+1+2 | 800 push 2 stops | 26.0 °C | 1:28 | Machine — continuous | |
| SFX 200 | 1+1+5 | 200 | 26.0 °C | 1:05 | Machine — continuous | |
| SFX 200 | 1+1+5 | 400 push 1 stop | 26.0 °C | 1:30 | Machine — continuous | |
| SFX 200 | 1+1+5 | 800 push 2 stops | 26.0 °C | 2:00 | Machine — continuous | |
| Delta 400 Professional | 1+1+2 | 200 pull 1 stop | 26.0 °C | 0:55 | Machine — continuous | |
| Delta 400 Professional | 1+1+2 | 400 | 26.0 °C | 1:05 | Machine — continuous | |
| Delta 400 Professional | 1+1+2 | 800 push 1 stop | 26.0 °C | 1:11 | Machine — continuous | |
| Delta 400 Professional | 1+1+2 | 1600 push 2 stops | 26.0 °C | 1:24 | Machine — continuous | |
| Delta 400 Professional | 1+1+2 | 3200 push 3 stops | 26.0 °C | 1:44 | Machine — continuous | |
| Delta 400 Professional | 1+1+5 | 200 pull 1 stop | 26.0 °C | 1:05 | Machine — continuous | |
| Delta 400 Professional | 1+1+5 | 400 | 26.0 °C | 1:18 | Machine — continuous | |
| Delta 400 Professional | 1+1+5 | 800 push 1 stop | 26.0 °C | 1:44 | Machine — continuous | |
| Delta 400 Professional | 1+1+5 | 1600 push 2 stops | 26.0 °C | 2:07 | Machine — continuous | |
| Delta 400 Professional | 1+1+5 | 3200 push 3 stops | 26.0 °C | 2:46 | Machine — continuous | |
| Delta 3200 Professional | 1+1+2 | 400 pull 3 stops | 26.0 °C | 0:54 | Machine — continuous | |
| Delta 3200 Professional | 1+1+2 | 800 pull 2 stops | 26.0 °C | 1:05 | Machine — continuous | |
| Delta 3200 Professional | 1+1+2 | 1600 pull 1 stop | 26.0 °C | 1:13 | Machine — continuous | |
| Delta 3200 Professional | 1+1+2 | 3200 | 26.0 °C | 1:24 | Machine — continuous | |
| Delta 3200 Professional | 1+1+2 | 6400 push 1 stop | 26.0 °C | 1:44 | Machine — continuous | |
| Delta 3200 Professional | 1+1+5 | 400 pull 3 stops | 26.0 °C | 1:35 | Machine — continuous | |
| Delta 3200 Professional | 1+1+5 | 800 pull 2 stops | 26.0 °C | 1:48 | Machine — continuous | |
| Delta 3200 Professional | 1+1+5 | 1600 pull 1 stop | 26.0 °C | 2:00 | Machine — continuous | |
| Delta 3200 Professional | 1+1+5 | 3200 | 26.0 °C | 2:33 | Machine — continuous | |
| Delta 3200 Professional | 1+1+5 | 6400 push 1 stop | 26.0 °C | 2:56 | Machine — continuous | |
| Ortho Plus | 1+1+2 | 80 | 26.0 °C | 1:05 | Machine — continuous | |
| Ortho Plus | 1+1+5 | 80 | 26.0 °C | 1:18 | Machine — continuous | |
| Pan 100 | 1+1+2 | 50 pull 1 stop | 26.0 °C | 0:40 | Machine — continuous | |
| Pan 100 | 1+1+2 | 100 | 26.0 °C | 0:45 | Machine — continuous | |
| Pan 100 | 1+1+2 | 200 push 1 stop | 26.0 °C | 0:54 | Machine — continuous | |
| Pan 100 | 1+1+5 | 50 pull 1 stop | 26.0 °C | 0:55 | Machine — continuous | |
| Pan 100 | 1+1+5 | 100 | 26.0 °C | 1:05 | Machine — continuous | |
| Pan 100 | 1+1+5 | 200 push 1 stop | 26.0 °C | 1:24 | Machine — continuous | |
| Pan 400 | 1+1+2 | 200 pull 1 stop | 26.0 °C | 0:55 | Machine — continuous | |
| Pan 400 | 1+1+2 | 400 | 26.0 °C | 1:00 | Machine — continuous | |
| Pan 400 | 1+1+2 | 800 push 1 stop | 26.0 °C | 1:15 | Machine — continuous | |
| Pan 400 | 1+1+2 | 1600 push 2 stops | 26.0 °C | 1:31 | Machine — continuous | |
| Pan 400 | 1+1+5 | 200 pull 1 stop | 26.0 °C | 1:05 | Machine — continuous | |
| Pan 400 | 1+1+5 | 400 | 26.0 °C | 1:10 | Machine — continuous | |
| Pan 400 | 1+1+5 | 800 push 1 stop | 26.0 °C | 1:35 | Machine — continuous | |
| Pan 400 | 1+1+5 | 1600 push 2 stops | 26.0 °C | 2:00 | Machine — continuous | |
| Pan 100 | 1+1+2 | 50 pull 1 stop | 26.0 °C | 0:45 | Machine — continuous | |
| Pan 100 | 1+1+2 | 100 | 26.0 °C | 0:50 | Machine — continuous | |
| Pan 100 | 1+1+2 | 200 push 1 stop | 26.0 °C | 1:00 | Machine — continuous | |
| Pan 100 | 1+1+5 | 50 pull 1 stop | 26.0 °C | 1:00 | Machine — continuous | |
| Pan 100 | 1+1+5 | 100 | 26.0 °C | 1:10 | Machine — continuous | |
| Pan 100 | 1+1+5 | 200 push 1 stop | 26.0 °C | 1:30 | Machine — continuous | |
| Pan 200 | 1+1+2 | 100 pull 1 stop | 26.0 °C | 0:40 | Machine — continuous | |
| Pan 200 | 1+1+2 | 200 | 26.0 °C | 0:50 | Machine — continuous | |
| Pan 200 | 1+1+2 | 400 push 1 stop | 26.0 °C | 1:00 | Machine — continuous | |
| Pan 200 | 1+1+5 | 100 pull 1 stop | 26.0 °C | 0:55 | Machine — continuous | |
| Pan 200 | 1+1+5 | 200 | 26.0 °C | 1:10 | Machine — continuous | |
| Pan 400 | 1+1+2 | 400 | 26.0 °C | 1:15 | Machine — continuous | |
| Pan 400 | 1+1+2 | 800 push 1 stop | 26.0 °C | 1:35 | Machine — continuous | |
| Pan 400 | 1+1+5 | 400 | 26.0 °C | 1:25 | Machine — continuous | |
| Pan 400 | 1+1+5 | 800 push 1 stop | 26.0 °C | 2:00 | Machine — continuous |
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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