rolllog

Development times

Ilford FP4 Plus in Ilford Ilfosol 3

2 times for 1+14, 1+9, EI 125, 20 °C. From HARMAN technology FP4 PLUS Technical Information (2018-11).

Box speed (EI 125), 20 °C, 1+14, intermittent
7:30
Box speed (EI 125), 20 °C, 1+9, intermittent
4:15

Times

1+14 · intermittent

Ilford FP4 Plus in Ilford Ilfosol 3 1+14 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
1257:30

1+9 · intermittent

Ilford FP4 Plus in Ilford Ilfosol 3 1+9 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
1254:15

Source: HARMAN technology FP4 PLUS Technical Information (2018-11)

Time in min:sec. A dash means the source gives no time for that combination; rolllog doesn't fill gaps. These are starting points: test with your own process.

Ilford FP4 Plus in other developers

Other films in Ilford Ilfosol 3

Same data from the API

curl "https://rolllog.io/api/v1/films/ilford-fp4-plus/dev-times?developer=ilford-ilfosol-3"

All of Ilford FP4 Plus: exposure, reciprocity, formats and prices.