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Film comparison

Ilford Delta 400 Professional vs Kodak Tri-X 400

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

Table 1
Film Ilford Delta 400 Professional Ilford Delta 400 Professional Kodak Tri-X 400 Kodak Tri-X 400
Maker Ilford Kodak
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 —
Reciprocity data Yes No
Published times 267 216

Developers in common

Table 2

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 FX-39 Type II
Dilution · °C Delta 400 Professional EI 400 Tri-X 400 EI 400
1+9 · 20 °C 10:00 10:00
Fomadon Excel W27
Dilution · °C Delta 400 Professional EI 400 Tri-X 400 EI 400
stock · 20 °C 7:00 7:00
1+1 · 20 °C 9:30 9:00
Fomadon P
Dilution · °C Delta 400 Professional EI 400 Tri-X 400 EI 400
stock · 20 °C 10:00 11:00
1+1 · 20 °C 14:30 14:00
Fomadon R09
Dilution · °C Delta 400 Professional EI 400 Tri-X 400 EI 400
1+50 · 20 °C 18:00 13:00
Ilford ID-11
Dilution · °C Delta 400 Professional EI 400 Tri-X 400 EI 400
stock · 20 °C 9:30 7:30
1+1 · 20 °C 14:00 11:00
Kodak D-76
Dilution · °C Delta 400 Professional EI 400 Tri-X 400 EI 400
stock · 20 °C 9:30 6:45
stock · 24 °C 8:00 4:45
1+1 · 20 °C 14:00 9:45
1+1 · 24 °C 11:30 7:45
Kodak HC-110
Dilution · °C Delta 400 Professional EI 400 Tri-X 400 EI 400
Dilution B (1+31) · 20 °C 7:30 3:45
Dilution B (1+31) · 24 °C 5:00 2:30
Kodak T-Max Developer
Dilution · °C Delta 400 Professional EI 400 Tri-X 400 EI 400
1+4 · 20 °C 6:30 6:00
1+4 · 24 °C 5:00 4:45
Kodak XTOL
Dilution · °C Delta 400 Professional EI 400 Tri-X 400 EI 400
stock · 20 °C 7:30 7:00
stock · 24 °C 4:30 4:45
1+1 · 20 °C 11:30 9:00
1+1 · 24 °C 8:30 7:15

Also with a box-speed time for each film, but not at a shared dilution and temperature: Kodak T-Max RS.