Ilford FP4 PLUS HAR1649734 Manuel D’Utilisation
Codes de produits
HAR1649734
Page 4 of 6
FP4 Plus
Note
Development times may need adjusting to
suit individual processing systems and working
practices. If an established system is producing
good results, adjust the recommended
development times until the desired contrast level is
obtained. Development times in other
manufacturers’ developers are included for your
convenience, and are only a general guide. Other
manufacturers can and do change their product
specifications from time to time, and the
development times may change as a result.
practices. If an established system is producing
good results, adjust the recommended
development times until the desired contrast level is
obtained. Development times in other
manufacturers’ developers are included for your
convenience, and are only a general guide. Other
manufacturers can and do change their product
specifications from time to time, and the
development times may change as a result.
METER SETTINGS BELOW EI 50/18
AND ABOVE EI 200/24
If FP4 Plus has been inadvertently exposed at
settings below EI 50/18 or above EI 200/24, the
following guide will ensure usable negatives are
obtained. Obviously, the quality of negatives
processed in this way will not be so high as
conventionally processed ones.
AND ABOVE EI 200/24
If FP4 Plus has been inadvertently exposed at
settings below EI 50/18 or above EI 200/24, the
following guide will ensure usable negatives are
obtained. Obviously, the quality of negatives
processed in this way will not be so high as
conventionally processed ones.
Manual processing (min/20ºC/68ºF) –
accidental exposure only
accidental exposure only
ILFORD
Dilution Meter setting
developer
EI EI
25/15
25/15
400/27
and
and
below
above
MICROPHEN
stock
–
16
PERCEPTOL
stock
8
1/2
–
PROCESSING AT DIFFERENT
TEMPERATURES
FP4 Plus film can be processed over a range of
temperatures. Development at 20
TEMPERATURES
FP4 Plus film can be processed over a range of
temperatures. Development at 20
o
C/68°F is
recommended and the times are given in the
development times table. If development is not
possible at 20
development times table. If development is not
possible at 20
o
C/68°F, the following chart can be
used. The chart is based at 20
o
C/68°F for a
general developer, and can be used to give an
estimate of development times at temperatures
around 20
estimate of development times at temperatures
around 20
o
C/68°F
For example, if 4 minutes at 20
o
C/68°F is
recommended, the time at 23
o
C/73°F will be 3
minutes and the time at 16
o
C/61°F will be 6
minutes.
New development time (min)
New development time (min)
Note
The chart can only be used as a guide
because different developers and processing
techniques can vary the results.
techniques can vary the results.
CHARACTERISTIC CURVE
Relative log exposure
FP4 Plus rollfilm developed in ILFORD ILFOTEC HC
(1+31) for 8 minutes at 20
(1+31) for 8 minutes at 20
o
C/68°F with
intermittent agitation. This curve is also
representative of the 35mm and sheet film formats.
representative of the 35mm and sheet film formats.
Te
mperature (
o
C)
Te
mperature (
o
F)
Density