rolllog

Development times

Ilford Delta 400 Professional in Tetenal Ultrafin Plus

6 times for 1+4, EI 200–1600, 20–24 °C. From HARMAN technology DELTA 400 PROFESSIONAL Technical Information (2018-11).

Box speed (EI 400), 20 °C, 1+4, intermittent
7:30

Times

1+4 · intermittent

Ilford Delta 400 Professional in Tetenal Ultrafin Plus 1+4 · intermittent: time in minutes:seconds by exposure index and temperature
EI20 °C24 °C
2006:005:00
4007:30—
50010:00—
80012:00—
160016:30—

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 Tetenal Ultrafin Plus

Same data from the API

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

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