rolllog

Development times

Ilford Delta 400 Professional in Ilford Microphen

15 times for 1+1, 1+3, stock, EI 200–3200, 20–24 °C. From HARMAN technology DELTA 400 PROFESSIONAL Technical Information (2018-11).

Box speed (EI 400), 20 °C, 1+1, intermittent
11:30
Box speed (EI 400), 20 °C, stock, intermittent
6:30

Times

1+1 · intermittent

Ilford Delta 400 Professional in Ilford Microphen 1+1 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C24 °C
2008:307:00
40011:30—
50013:30—
80015:30—
160019:00—

1+3 · intermittent

Ilford Delta 400 Professional in Ilford Microphen 1+3 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C24 °C
20016:0011:30

Stock · intermittent

Ilford Delta 400 Professional in Ilford Microphen Stock · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C24 °C
2005:004:00
4006:30—
5007:30—
8008:30—
160010:30—
320014:00—

Source: HARMAN technology DELTA 400 PROFESSIONAL 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 Delta 400 Professional in other developers

Other films in Ilford Microphen

Same data from the API

curl "https://rolllog.io/api/v1/films/ilford-delta-400/dev-times?developer=ilford-microphen"

All of Ilford Delta 400 Professional: exposure, reciprocity, formats and prices.