rolllog

Development times

Ilford HP5 Plus in Ilford Microphen

7 times for 1+1, 1+3, stock, EI 400–3200, 20 °C. From HARMAN technology HP5 PLUS Technical Information (2018-11).

Box speed (EI 400), 20 °C, 1+1, intermittent
12:00
Box speed (EI 400), 20 °C, 1+3, intermittent
23:00
Box speed (EI 400), 20 °C, stock, intermittent
6:30

Times

1+1 · intermittent

Ilford HP5 Plus in Ilford Microphen 1+1 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
40012:00
80015:00

1+3 · intermittent

Ilford HP5 Plus in Ilford Microphen 1+3 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
40023:00

Stock · intermittent

Ilford HP5 Plus in Ilford Microphen Stock · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C
4006:30
8008:00
160011:00
320016:00

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 Ilford Microphen

Same data from the API

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

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