wiki:darkroom:film:film_dev_times
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Table of Contents
Film Development Times (summary)
Rules of thumb
The table below suggests how to select film exposure index (relative to box-speed) and adapt film development time (relative to datasheet) given an expected subject brightness range (SBR).[1]
| SBR | EI | Time |
|---|---|---|
| L | - | - |
| N | -2/3 | -15% |
| H | -1 1/3 | -30% |
The table below suggests how to adjust film development to accomplish N+/- development.
| N-1 | -15% < N-1 < -25% |
|---|---|
| N+1 | +25% < N+1 < +40% |
Kodak D-76
Ilford HP5+
| Film | EI | Dil | Source | Time | Note |
|---|---|---|---|---|---|
| HP5+ | 400 | 1+1 | Ilford | 11:00 | (13 min for ID11) |
| HP5+ | 400 | 1+1 | MassiveDev | 13:00 | |
| HP5+ | 200 | 1+1 | my | 10:00 | ().00 / 10:00) ? |
Ilford FP4+
| Film | EI | Dil | Source | Time | Note |
|---|---|---|---|---|---|
| FP4+ | 125 | 1+1 | Ilford | 11:00 | |
| FP4+ | 125 | 1+1 | MassiveDev | 11:00 | |
| FP4+ | 50 | 1+1 | Ilford | 9:00 | |
| FP4+ | 50 | 1+1 | MassiveDev | 8:00 | |
| FP4+ | 64 | 1+1 | my | 10:00 |
Adox CHS-II
| Film | EI | Dil | Source | Time | Note |
|---|---|---|---|---|---|
| CHS-II | 100 | Adox | 9:00 | -10% for sheet film –> 8:00 min |
Adox datablad (agitering varje minut):
CHS-II @ EI100, 9:00 min, (-10% för bladfilm) CHS-II @ EI100, 8:00 min, för bladfilm
Rodinal
| Film | EI | Dil | Source | Time | Note |
|---|---|---|---|---|---|
| HP5+ | 200 | 1+49 | my | 12:00 | This is my own tested and approved time. Works well! |
X-Tol
Ilford HP5+
| Film | EI | Dil | Source | Time | Note |
|---|---|---|---|---|---|
| HP5+ | 200 | 1+1 | Kodak | 10:15 | . |
| HP5+ | 200 | 1+1 | MassiveDev | 10:15 | . |
Ilford FP4+
| Film | EI | Dil | Source | Time | Note |
|---|---|---|---|---|---|
| FP4+ | 125 | 1+1 | Kodak | 10:00 | . |
| FP4+ | 64 | 1+1 | Kodak | 8:30 | . |
| FP4+ | 125 | 1+2 | Kodak | 11:30 | ?11.5? |
| FP4+ | 64 | 1+2 | Kodak | 10:00 |
Minst 100ml konc per 80sqinch = 4st 4×5 175ml + 350ml = 525ml 160ml + 320ml = 480ml
XTOL sägs ge bättre skuggteckning, samt att den håller ner högdagrar något. Lämpar sig bra för motiv som är “direktbelysta” (enl Thomas Bertilssen - photrio) https://www.photrio.com/forum/threads/xtol-vs-rodinal.120246/#post-1593351
Ilford Delta 400
| Film | EI | Dil | Source | Time | Note |
|---|---|---|---|---|---|
| Delta400 | 200 | 1+1 | my | 9:00 | . |
(template)
| Film | EI | Dil | Source | Time | Note |
|---|---|---|---|---|---|
| . | . | . | . | 0:00 | . |
wiki/darkroom/film/film_dev_times.1642781980.txt.gz · Last modified: 2022/01/21 17:19 by henpe