MULTIGRADE IV RC DELUXE
PREMIUM QUALITY VARIABLE CONTRAST PAPER ON A RESIN
ILFORD MULTIGRADE IV RC DeLuxe is a premium quality variable contrast
paper on a resin coated base. Compared with MULTIGRADE III, it has been
improved to give better tonal rendition throughout the contrast range,
especially in the highlights. MULTIGRADE IV RC Deluxe has a bright base
tint. The image colour remains cool-to-neutral whether viewed in daylight
or fluorescent light. MULTIGRADE IV RC DeLuxe is part of the ILFORD MULTIGRADE
system and is fully compatible with all existing MULTIGRADE filters and
equipment. It is equally suitable for printing from conventional negatives
and from XP2 negatives.
There are three MULTIGRADE IV RC DeLuxe surfaces: 1 M glossy, 25M satin
and 44M pearl.
MULTIGRADE IV RC DeLuxe is designed for use with all enlargers.
MULTIGRADE IV RC Deluxe can be used with most common safelights for
black and white papers. The ILFORD safelights are especially recommended,
however, as they generally allow darkrooms to be brighter, but completely
safe, for MULTIGRADE IV RC DeLuxe and many black and white papers. ILFORD
safelights are the ILFORD SLl darkroom safelight or the ILFORD 902 (light
brown) safelight filter fitted in a darkroom lamp (for example, the ILFORD
DL10 or DL20). A 15W bulb is recommended with these safelights.
For direct (ighting, do not expose the paper to the safelight for more
than 4 minutes, and the distance between the paper and the safelight should
be a minimum of 1 metre.
Other filters can be used, for example, the Kodak OC and the Agfa-Gevaert
G7, or the Philips PF710 safelamp.
MULTIGRADE IV RC DeLuxe was tested unfiltered to produce the following
curves at density 0.5, 1 .0 and 1 .5.
Seven full grades of contrast, in half grade steps, , are available
on MULTIGRADE IV RC DeLuxe paper when used with the ILFORD MULTIGRADE speed-matched
The chart gives the ISO range figures (ISO standard 6846 - 1 983) for
RC Deluxe. These figures give a guide to selecting the appropriate
grade of paper for a given effective negative density range.
MULTIGRADE IV RC DeLuxe unfiltered has an ISO range of R 110.
The above values are representative of those obtained when dish or machine
processing the paper to ILFORD recommendations. ISO range figures may be
helpful to printers who have some means of measuring the effective density
range of the image as projected on the
|MULTIGRADE IV RC DeLuxe paper and
enlarger baseboard - such as with a photometer. As an example, for
a negative with an effective density range of 1 .32 log exposure units,
multiply this figure by 1 00 and choose the nearest ISO range figure from
the table - in this case 1 30. Try printing this negative with MULTIGRADE
filter 1 on MULTIGRADE IV RC DeLuxe paper.
The speed of MULTIGRADE IV RC DeLuxe depends on the filtration used
during exposure. MULTIGRADE IV RC DeLuxe unfiltered, has a paper speed
of ISO P500.
IS0 paper speed
The above values are representative of those obtained when dish or machine
processing the paper to ILFORD recommendations.
|MULTIGRADE IV RC DeLuxe paper and
Exposing light sources
MULTIGRADE IV RC DeLuxe is designed for use with most enlargers and
printers, that is, those fitted with either a tungsten or tungsten halogen
light source. It is also suitable for use with cold cathode (cold light)
light sources designed for variable contrast papers - further details are
given in the fact sheet 'Contrast control'. Other cold cathode (cold light)
and pulsed xenon light sources may give a reduced contrast range.
Latent image stability
No significant change in picture quality will be seen when MULTIGRADE
IV RC DeLuxe is lefr for a period of 24 hours afrer exposure and before
Contrast is controlled by using MULTIGRADE hand filters, MULTIGRADE
1 00 or 500 equipment, other variable contrast enlarger heads or colour
enlarger heads. Full details on contrast control with MULTIGRADE papers
are given in the fact sheet 'Contrast control'.
The twelve MULTIGRADE filters are numbered 00-5 in 1/2 steps, with
the lowest filter number corresponding to the softest contrast. The exposure
time for filters 00-31/2 is the same; that for filters 4-5 is double.
ILFORD MULTIGRADE 100 is a replacement enlarger head. The very sophisticated
ILFORD MULTIGRADE 500 exposing system replaces the standard lamphouse on
most professional enlargers.
Compared with MULTIGRADE III, MULTIGRADE IV RC DeLuxe has a different
balance of sensitivity to blue and green light. For this reason, it might
be necessary to rebalance the lamps on the MULTIGRADE 500 equipment. Refer
to the 'Program selector switch' section in the operating manual. For shortest
exposures, put the brighter lamp(s) for the blue (or magenta) light.
MULTIGRADE IV RC DeLuxe glossy or pearl paper exposed through
filters 00, 0, 1 , 2, 3, 4 and 5. Developer: MULTIGRADE diluted 1 +9. Development:
1 minute at 20C.
MULTIGRADE IV RC DeLuxe is processed in the same way as other resin
coated papers. Full details on processing resin coated papers are given
in the fact sheet'Processing B&W paper RC papers'.
Note Photographic chemicals are not hazardous when used correctly.
Always follow the health and safety recommendations on the packaging. Photochemicals
material safety data sheets containing full details for the safe handling,
disposa) and transportation of ILFORD chemicals are available from ILFORD.
Processing summary (intermittent agitation)
Development See the 'Processing summary' for development recommendations.
ILFORD PAPER FIXER
Fresh, running water
On correctly exposed prints with MULTIGRADE developer 1 +9, the image
will begin to appear after 10 seconds. The minimum recommended development
time for high quality prints is 45 seconds; after this time there is a
more gradual image build-up. Overexposed prints developed for a minimum
of 35 seconds are acceptable for those applications where the highest quality
is not required.
To give greater control during development, and for economy, the 1
+1 4 dilution of MULTIGRADE developer can be used.
MULTIGRADE IV RC DeLuxe paper can also be processed in other high quality
dish developers such as ILFORD ILFOSPEED and ILFORD PQ UNIVERSAL.
See the 'Processing summary' for stop bath recommendations.
A stop bath stops development immediately, reduces the risk of staining
and will extend the life of the fixer bath.
A water rinse can be used instead of a stop bath, but it must be changed
frequently to avoid processing marks.
See the 'Processing summary' for fixing recommendations.
The use of a hardening fixer is not recommended as it reduces washing
efficiency. ILFORD PAPER FIXER is a non-hardening fixer.
There is no benefit in extending fixation beyond the recommended time;
some loss of print quality might be seen when long fixing times are given
due to image etching.
See the 'Processing summary' for washing recommendations.
When it is important to obtain a print in the shortest possible time,
vigorously wash MULTIGRADE IV RC DeLuxe paper for 30 seconds in running
Prolonged immersion in water can cause edge penetration and print curl
with resin coated papers: for this reason, avoid wet times longer than
A final rinse in ILFORD ILFOTOL, diluted 1+200 with water, will aid
even and rapid drying. Optimum quality results will be obtained with the
ILFORD series of dryers, for example, the ILFOLAB 1250RC.
When a dryer for resin coated papers is not available, remove surplus
water from the prints and leave them to dry. At room temperature, prints
will dry in 10-20 minutes.
Note MULTIGRADE IV RC DeLuxe paper, as with other resin coated
papers, should not be glazed or dried on a drum or flatbed glazer, as this
can cause the polyethylene in the paper to stick to the glazing surface.
MULTIGRADE IV RC DeLuxe paper can be processed in all conventional
machines for black and white resin coated papers. It is not suitable, however,
for activation type processing. Full details on processing resin coated
papers are given in the fact sheet'Processing B&W paper RC papers'.
The ILFOLAB MG 2950 processor is particularly recommended for high
quality, rapid machine processing. ILFORD 2000RT developer/replenisher
and fixer/replenisher are recommended for use with this processor.
Alternatively, the ILFOLAB 2150RC table-top processor is recommended.
ILFORD 2000TL developer and fixer are recommended for use with this processor.
This section is a guide to setting up processors for ILFORD resin coated
papers using ILFORD 2000RT developer/replenisher and fixer/replenisher.
These are diluted 1 +4 to make tank or replenisher solution. These suggestions
are only a guide, and the processing cycle should be checked in the processor.
For further guidance, contact your local ILFORD company or distributor.
Suggested development times
The preferred temperature range is 20-30C.
These times are for non-replenished systems, with a maximum solution life
of seven days. They are also for replenished systems with a solution life
of up to three months. The suggested developer replenishment rate is 150-200m1/m2
|Development time (sec)
including transfer time to next tank
Suggested fixing times
The same times and temperatures as for development can be used for
fixing. The actual fixing time, however, is shorter, and 20 seconds is
ample above 20C. These recommendations are suitable for both replenished
and non-replenished systems. In non-replenished systems, the maximum paper
throughput is 4m2 per litre of working strength solution. The suggested
fixer replenishment rate for replenished systems is 300-450m1/m2 of paper
processed. The maximum silver concentration in the fixer bath is 4-6g/I.
Note If fixing is not complete, then adequate washing is impossible.
Wash for at least 15 seconds at temperatures above 5C. Set the water
flow so as to fill the wash tank in 4 minutes or less.
Hot air drying
Use temperatures up to 85C.
MULTIGRADE IV RC DeLuxe responds in the same way as other resin coated
papers to the usual techniques of toning, chemical reduction and retouching.
It can be mounted using the standard techniques for resin coated papers.
Full details on finishing resin coated papers are given in the fact sheet
'Processing B&W paper - RC papers'.
Store unused MULTIGRADE IV RC DeLuxe paper in a cool, dry place in
its original packaging. Avoid conditions of high temperature and/or high
humidity. MULTIGRADE IV RC DeLuxe will keep in excellent condition for
up to 2 years when stored as recommended.
Prints MULTIGRADE IV RC DeLuxe prints which have been processed
as recommended in this leaflet will have a more than adequate storage life
for most purposes. Print life will be shortened, however, in adverse storage
conditions, or if the print is exposed to oxidising gases.
It is recommended that prints made for display are toned to protect
them from the oxidising gases that are found in many environments. Selenium
toner is recommended as it has little effect on the image colour of MULTIGRADE
IV RC DeLuxe, but other protection methods can be used including sulphide
toning, silver image stabilisers and laminating. Full details on protecting
prints made for display are given in the factsheet'Processing 88W paper