ILFOTEC DD-X
Development time (min)
DELTA 400 Professional film developed in ILFORD
ILFOTEC DD-X 1+4 at (1) 24ºC/75ºF and (2)
20ºC/68ºF.
CHARACTERISTIC CURVE
Relative log exposure
DELTA 400 Professional 35mm film developed in
ILFORD ID-11 stock for 8 minutes at 24°C/75ºF
with intermittent agitation.
PROCESSING
DELTA 400 Professional film can be processed in
all types of processing equipment including spiral
tanks, rotary processors, dishes/trays, deep tanks
and automatic processors. Standard capacity
figures and replenishment rates can be
maintained. When fixing DELTA 400 Professional
film, however, slightly longer times than used with
conventional film are recommended for best
results.
Safelight recommendations
Handle DELTA 400 Professional film in total
darkness. For very brief inspections during
processing, use the ILFORD 908 (very dark green)
safelight filter, with a 15W bulb, fitted in a
darkroom lamp (such as the ILFORD DL10 or
DL20). Do not allow direct lighting from the
safelight to fall on the film.
Agitation
Intermittent agitation is recommended for use in
spiral tanks and deep tanks. With spiral tanks,
invert the tank four times during the first 10
seconds, then invert the tank four times again
during the first 10 seconds of each further minute.
Continuous agitation is recommended in
dishes/trays. Otherwise, follow the
recommendations given by the processing
equipment manufacturer.
Fixation
After development, rinse the film in water or
ILFORD ILFOSTOP or ILFOSTOP PRO stop bath
(1+19) for 30 seconds at 20ºC/68ºF, and fix in
ILFORD HYPAM or ILFORD UNIVERSAL RAPID fixer
(1+4) for 3–5 minutes at 20°C/68ºF. A hardener
is recommended only when processing at high
temperatures (above 30°C/86ºF) or in a roller
transport processor.
Washing
Where a non-hardening fixer, such as HYPAM or
UNIVERSAL RAPID, has been used, wash the film
in running water for 5–10 minutes at a
temperature within 5°C/9ºF of the processing
temperature.
For spiral tank use, when a non-hardening fixer
has been used, the following method of washing is
recommended. This method of washing is faster,
uses less water yet still gives negatives suitable for
long term storage.
1 Process the film in a spiral tank.
2 Fix it using HYPAM or UNIVERSAL RAPID fixer.
3 After fixation, fill the tank with water at the same
temperature as the processing solutions, and invert
it five times.
4 Drain the water away and refill. Invert the tank
ten times.
DELTA 400 PROFESSIONAL
Density
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