rolllog

Development times

Ilford FP4 Plus in Ilford Ilfotec LC29

7 times for 1+19, 1+29, 1+9, EI 50–200, 20 °C. From HARMAN technology FP4 PLUS Technical Information (2018-11).

Box speed (EI 125), 20 °C, 1+19, intermittent
8:00
Box speed (EI 125), 20 °C, 1+29, intermittent
12:00
Box speed (EI 125), 20 °C, 1+9, intermittent
4:00

Times

1+19 · intermittent

Ilford FP4 Plus in Ilford Ilfotec LC29 1+19 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
506:00
1258:00
2009:00

1+29 · intermittent

Ilford FP4 Plus in Ilford Ilfotec LC29 1+29 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
508:00
12512:00

1+9 · intermittent

Ilford FP4 Plus in Ilford Ilfotec LC29 1+9 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
1254:00
2005:00

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 Ilfotec LC29

Same data from the API

curl "https://rolllog.io/api/v1/films/ilford-fp4-plus/dev-times?developer=ilford-ilfotec-lc29"

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