Technical Data Sheet

Page 4 of 6
Nov 2018
FP4 PLUS Technical Information
35mm and Roll Film
ILFORD developer
Dilution
Meter setting (EI)
50/18
125/22
200/24
Dip and dunk machines (min/24°C/75°F)
ILFOTEC DD
1+4
7
8½
11½
Kodak T-Max RS
stock
-
7½
-
Kodak Xtol
stock
-
7
10½
ILFOLAB FP40, roller transport and short leader machines (sec/26°C/79°F)
ILFOTEC RT RAPID
1+1+2
40
45
54
1+1+5
55
65
84
METER SETTINGS BELOW EI50/18 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.
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 for some 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.
Processing at Different Temperatures
FP4 Plus film can be processed over a range of temperatures. Development times at temperatures other than
20°C/68°F may be calculated from the charts below. For example, if 4 minutes at 20°C/68°F is
recommended, the time at 23°C/73°F will be 3 min and the time at 16°C/61°F will be 6 min.
Manual processing (min /20°C/68°F) accidental exposure only
Developer
Dilution
Meter setting 25/15
and below
Meter setting 400/27
and above
MICROPHEN
Stock
-
16
PERCEPTOL
Stock
8½
-