rolllog

Development times

Ilford FP4 Plus in Tetenal Ultrafin SF

4 times for 1+1, stock, EI 125–200, 20 °C. From HARMAN technology FP4 PLUS Technical Information (2018-11).

Box speed (EI 125), 20 °C, 1+1, intermittent
11:00
Box speed (EI 125), 20 °C, stock, intermittent
7:00

Times

1+1 · intermittent

Ilford FP4 Plus in Tetenal Ultrafin SF 1+1 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
12511:00
20014:00

Stock · intermittent

Ilford FP4 Plus in Tetenal Ultrafin SF Stock · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
1257:00
2009:00

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 Tetenal Ultrafin SF

Same data from the API

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

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