ORTHOCHROMATIC BLACK & WHITE LEADER FILM
Sensitivity: 12 ISO
Contrast: very strong
Production process: industrial coating
Base: polyester, 120 μm
Spectral sensitivity: maximum 580 nm
Darkroom safelight: red, 620 nm
Original use: “A” is normaly used as leader and protection tail for motion picture film copy, but also for recording sub-titles or main-titles.
Recommended use: portrait, urban photography, still life, astrophotography.
exposure developer dilution time T°C
12 iso Ilfotec LC29 1+19 7 mn 20°C
12 iso Ilfotec RT rapid — 70 s 26°C
12 iso Rodinal 1+50 13 mn 20°C
12 iso D-76 1+1 9 mn 20°C
12 iso Xtol stock 5,5 mn 20°C
25 iso Tetenal Eukobrom 1+1 4 mn 20°C
For use with an unlisted developer, you can use, for a 12 iso exposure, time and dilution for the Ilford Delta at 400 iso.
Loading: Under shadow. To avoid light piping effect, take 3 blank pictures before starting your roll.
Standard sizes: 135 recycled cassette (no DX code) – 36 exp.
Use of recycled cassettes is not recommended with fully automatic/motorized cameras.
Beware of too much contrast with outdoor views: the sky can be easily overexposed. For interior shooting, please remind that this film is not very sensitive to tungsten type light: natural light will give much better results.