rolllog

Development times

Ilford HP5 Plus in Acufine

3 times for stock, EI 400–1600, 20 °C. From HARMAN technology HP5 PLUS Technical Information (2018-11).

Box speed (EI 400), 20 °C, stock, intermittent
4:30

Times

Stock · intermittent

Ilford HP5 Plus in Acufine Stock · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
4004:30
8006:30
16009:30

Source: HARMAN technology HP5 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 HP5 Plus in other developers

Other films in Acufine

Same data from the API

curl "https://rolllog.io/api/v1/films/ilford-hp5-plus/dev-times?developer=acufine"

All of Ilford HP5 Plus: exposure, reciprocity, formats and prices.