rolllog

Development times

Ilford Delta 400 Professional in Tetenal Ultrafin SF

10 times for 1+1, 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
19:00
Box speed (EI 400), 20 °C, stock, intermittent
10:00

Times

1+1 · intermittent

EI20 °C24 °C
20014:009:00
40019:00—

Stock · intermittent

EI20 °C24 °C
2008:005:30
40010:00—
50012:00—
80013:30—
160017:00—
320020:00—

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 Tetenal Ultrafin SF

Same data from the API

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

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