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Film comparison

Ilford Delta 400 Professional vs Silberra U400

What the catalogue holds about each, and the times they share. A dash means a figure has not been read off a datasheet — nothing here is estimated.

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Specification side by side

Film Ilford Delta 400 Professional Ilford Delta 400 Professional Silberra U400 Silberra U400
Maker Ilford Silberra
ISO 400 400
Type B&W negative B&W negative
Process B&W B&W
Status In production In production
Formats — —
Grain (RMS) — —
Resolving power — —
Latitude −1.0 / +3.0 stops —
First released 2001 2018
Reciprocity data Yes No
Published times 267 11

Developers in common

Each film’s time at its own box speed in the same developer, at the same dilution and temperature. Every time opens the full table for that film in that developer.

ADOX Rodinal
Dilution · °C Delta 400 Professional EI 400 U400 EI 400
1+50 · 20 °C 20:00 7:30
Kodak D-76
Dilution · °C Delta 400 Professional EI 400 U400 EI 400
stock · 20 °C 9:30 7:00
1+1 · 20 °C 14:00 10:00
Kodak HC-110
Dilution · °C Delta 400 Professional EI 400 U400 EI 400
Dilution B (1+31) · 20 °C 7:30 5:00
Kodak XTOL
Dilution · °C Delta 400 Professional EI 400 U400 EI 400
stock · 20 °C 7:30 5:30