ILFORD
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FACT SHEET
PAN F
o
ISO 50/18 BLACK AND WHITE PROFESSIONAL FILM
FOR HIGH PRINT QUALITY AND FLEXIBILITY IN USE
PAN F Plus is compatible with all major processing
systems, including those which give the standard
short fixing and washing times.
PAN F Plus 35mm film is coated on 0.125mm/5-mil
acetate base and is available in 36 exposure
cassettes, or in bulk lengths of 17 and 30.5 metres
(55 and 100ft). PAN F Plus 35mm film is supplied
in DX coded cassettes, suitable for all 35mm
cameras.
SPECTRAL SENSITIVITY
Wedge spectrogram to tungsten light
(2850K)
1.0
0.5
400
450
500
550
600
Sensitivity
ILFORD PAN F Plus is an extremely fine grain black
and white film. It has outstanding resolution,
sharpness and edge contrast. These characteristics
make it the natural choice where fine detail and
lack of grain are more important than film speed.
Mural size enlargements from PAN F Plus
negatives show an outstanding range of tone and
detail when the film is carefully exposed and
processed.
650
Wavelength nm
FILTER FACTORS
PAN F Plus film may be used with all types of
filters (eg colour, polarising and neutral density
filters) in the usual way. Follow the instructions
given by the filter manufacturer.
PAN F Plus rollfilm is coated on 0.110mm/4-mil
clear acetate base with an anti-halation backing
which clears during development. It is available in
120 lengths and is edge numbered 1 to 19.
The exposure increase in daylight may vary with
the angle of the sun and the time of day. In the
late afternoon or the winter months, when daylight
contains more red light, green and blue filters may
need slightly more exposure than usual.
EXPOSURE RATING
PAN F Plus has a speed rating of ISO 50/18o
(50ASA, 18DIN, EI 50/18) to daylight. The ISO
speed rating was measured using ILFORD ID-11
developer at 20oC/68oF with intermittent agitation
in a spiral tank.
Cameras with through-the-lens metering will usually
adjust the exposure automatically when using
filters. With some automatic exposure cameras, the
correction given for deep red and orange filters
can produce negatives under exposed by as much
as 11/2 stops.
Best results are obtained at EI 50/18, but good
image quality will also be obtained when PAN F
Plus is exposed at EI 25/15.
It should be noted that the exposure index (EI)
range recommended for PAN F Plus is based on a
practical evaluation of film speed and is not based
on foot speed, as is the ISO standard.
Some products in this fact sheet
might not be available in your country
PAN F Plus
MAKING LONG EXPOSURES
For exposures between 1/2 and 1/10 000 second, no
adjustments are needed for reciprocity law failure.
When exposures longer than 1/2 second are given,
PAN F Plus, along with other films, needs to be given
more exposure than indicated by a meter. Use the
graph to calculate the increased exposure time which
should be given once the measured time is known.
175
150
125
75
50
25
5
10
15
20
25
Adjusted exposure time (sec)
100
30
Measured exposure time (sec)
CHOOSING THE BEST ILFORD DEVELOPER FOR THE JOB
Manual processing (eg spiral tank, dish/tray, deep tank) and rotary processors
Liquid
Powder
Best overall image quality
ILFOTEC DD-X
ID-11 (stock)
Finest grain
ILFOTEC DD-X
PERCEPTOL (stock)
Maximum sharpness
ILFOTEC DD-X
ID-11 (1+3)
One-shot convenience
ILFOSOL S
ILFOTEC DD-X
ID-11 (1+1)
MICROPHEN (1+1)
Economy
ILFOTEC LC29 (1+29)
ID-11 (1+3)
MICROPHEN (1+3)
Rapid processing
ILFOTEC HC (1+31)
–
Replenishable
ILFOTEC HC
ID-11
Dip and dunk
ILFOTEC DD
ID-11
ILFOTEC HC
Best overall image quality (liquid) and long tank life
Best overall image quality (powder) and long tank life
Flexible process time, range of dilutions and economy
Short leader
ILFOTEC RT RAPID
ILFOTEC HC
Rapid processing, best overall image quality and
long tank life
Range of dilutions, flexibility and economy
ILFOTEC RT RAPID
Rapid processing
Machine processing
Roller transport
Some products in this fact sheet
might not be available in your country
ILFORD
PAN F Plus
DEVELOPMENT TIMES
The table gives development times for both manual
and machine processing PAN F Plus. These times
will produce negatives of average contrast suitable
for printing in all enlargers. The development times
are intended as a guide and may be altered if a
different result is needed.
For manual processing in spiral tanks and deep
tanks, the development times are based on
intermittent agitation. Where continuous agitation
is used for manual processing (as in a dish/tray or
with some types of developing tank), reduce these
times by up to 15%. For use in rotary processors
without a pre-rinse, reduce the spiral tank
development times by up to 15%. A pre-rinse is
not recommended as it can lead to uneven
processing.
35mm film & Rollfilm
Dilution
Meter setting
EI 25/15
EI 50/18
Spiral tank, deep tank, dip and dunk machines (min/20oC/68oF)
ILFORD developer
ILFOTEC DD-X
1+4
7
8
ILFOSOL S
1+9
1+14
–
–
4
6
ILFOTEC HC
1+31
–
4
ILFOTEC LC29
1+19
1+29
–
–
4
51/2
ID-11
stock
1+1
1+3
61/2
81/2
14
61/2
81/2
15
MICROPHEN
stock
1+1
1+3
41/2
6
11
41/2
6
11
PERCEPTOL
stock
1+1
1+3
9
101/2
15
14
15
17
Acufine Acufine
stock
–
31/2
Agfa Refinal
stock
–
51/2
Agfa Rodinal
1+25
1+50
–
–
6
11
Kodak D-76
stock
1+1
1+3
61/2
101/2
151/2
61/2
101/2
151/2
Kodak HC-110
B
–
4
Kodak Microdol-X
stock
1+3
12
15
15
18
Kodak T-Max
1+4
–
4
Paterson Acutol
1+10
–
101/2
Tetenal Ultrafin
1+10
1+20
–
–
4
8
Tetenal Ultrafin Plus
1+4
–
5
Non-ILFORD developer
Dip and dunk machines (min/24oC/75oF)
ILFOTEC DD
1+4
41/2
51/2
Kodak T-Max RS
stock
–
3
ILFOLAB FP40, roller transport and short leader machines (sec)
ILFOTEC RT RAPID
stock/26ºC/79oF
o
–
50
ILFOTEC HC
1+11/24ºC/75 F
50
65
Kodak Duraflo RT
stock/26ºC/79oF
–
50
Some products in this fact sheet
might not be available in your country
PAN F Plus
DEVELOPMENT TIMES
If PAN F Plus has been inadvertently exposed at
settings below EI 25/15 or above EI 50/18, 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.
o
o
Manual processing (min/20 C/68 F) –
accidental exposure only
EI
200/24
and
above
8
12
ID-11
4
–
–
stock
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.
o
–
o
MICROPHEN stock
Temperature ( C/ F)
Dilution Meter setting
EI
EI
12/12 100/21
and
below
For example, if 4 minutes at 20°C/68oF is
recommended, the time at 23°C/73oF will be 3
minutes and the time at 16°C/61oF will be 6
minutes.
New development time (min)
CHARACTERISTIC CURVE
2.0
1.0
Density
ILFORD
developer
PROCESSING AT DIFFERENT
TEMPERATURES
PAN F Plus film can be processed over a range of
temperatures. Development times at temperatures
other than 20°C/68oF may be calculated from the
chart below.
1
2
Relative log exposure
3
4
PAN F Plus rollfilm developed in ILFORD ILFOTEC
HC (1+31) for 4 minutes at 20°C/68oF with
intermittent agitation. This curve is also
representative of the 35mm film format.
Some products in this fact sheet
might not be available in your country
PAN F Plus
PROCESSING
PAN F Plus 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. PAN F
Plus is very robust in processing and will tolerate
less than ideal processing conditions. Also, it will
not contaminate the processing chemicals.
Safelight recommendations
Handle PAN F Plus 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. Continuous agitation
is recommended in dishes/trays (by rocking the
dish or by interleaving the sheets). As a general
rule, follow the recommendations given by the
processing equipment manufacturer.
A final rinse in water to which a few drops of
ILFORD ILFOTOL wetting agent have been added
will aid rapid and uniform drying.
Drying
To avoid drying marks, use a clean squeegee or
chamois cloth to wipe PAN F Plus film before
hanging it to dry. Dry PAN F Plus at 30–40°C/86104oF in a drying cabinet or at room temperature
in a clean dust-free area.
STORAGE
Store PAN F Plus in a cool (10–20°C/50-68oF),
dry place in its original packaging.
Exposed film
Once exposed, process PAN F Plus as soon as
practical. Images on exposed but unprocessed film
will not degrade for up to several months when
stored as recommended.
Negatives
Store processed negatives in a cool (10–20°C/5068oF), dry place, in the dark. Suitable storage
sleeves include those made of cellulose triacetate,
Mylar, paper (pH6.5–7.5) or inert polyester.
Fixation
After development, rinse the film in water or an
acid stop bath (ILFORD ILFOSTOP or ILFOSTOP
PRO) and fix in ILFORD HYPAM or UNIVERSAL
RAPID fixer (1+4) for 2–4 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.
5 Drain and refill it for the third time and invert the
tank twenty times. Drain the water away.
ILFORD Imaging UK Limited, Town Lane, Mobberley
Knutsford, Cheshire WA16 7JL, England
www.ILFORD.com
Some products in this fact sheet
might not be available in your country
95043D.www
January 2001
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