Datasheet

Page 1 of 6
ISO 50/18
o
BLACK AND WHITE PROFESSIONAL FILM
FOR HIGH PRINT QUALITY AND FLEXIBILITY IN USE
FACT SHEET
July 2004
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.
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.
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.
EXPOSURE RATING
PAN F Plus has a speed rating of ISO 50/18
o
(50ASA, 18DIN, EI 50/18) to daylight. The ISO
speed rating was measured using ILFORD ID-11
developer at 20
o
C/68
o
F with intermittent agitation
in a spiral tank.
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.
SPECTRAL SENSITIVITY
Wedge spectrogram to tungsten light
(2850K)
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.
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.
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 1
1/
2 stops.
400
1
.
0
0
.
5
450 500 550 600 650
Sensitivity

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