Ilford 1769771 User Manual

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TECHNICAL INFORMATION 
MULTIGRADE IV 
RC 
 
PREMIUM QUALITY, VARIABLE CONTRAST, BLACK AND WHITE PAPER 
ON A CHOICE OF RESIN COATED BASES 
 
ILFORD MULTIGRADE IV RC DeLuxe and ILFORD 
MULTIGRADE IV RC Portfolio are premium quality 
variable contrast papers. 
 
MULTIGRADE IV RC has a bright base tint. 
The image colour remains cool-to-neutral whether 
viewed in daylight or fluorescent light. 
 
MULTIGRADE IV RC 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 SUPER negatives. 
 
MULTIGRADE IV RC DE LUXE MULTIGRADE 
IV RC DeLuxe has the standard weight (190g/m
2
resin coated base. It is available in three surfaces: 
1M glossy, 25M satin and 44M pearl. 
 
MULTIGRADE IV RC PORTFOLIO 
MULTIGRADE IV RC Portfolio has a double weight 
(250g/m
2
) resin coated base. It is available in 
two surfaces: 1K glossy and 44K pearl. 
EXPOSURE 
MULTIGRADE IV RC is designed for use with all 
enlargers. 
 
Safelight recommendations 
MULTIGRADE IV RC can be used with most 
common safelights for black and white papers. The 
ILFORD safelights are especially recommended as 
they generally allow darkrooms to be brighter, but 
completely safe, for MULTIGRADE IV RC and many 
black and white papers. 
 
ILFORD safelights are the ILFORD SL1 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 lighting, 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 1.2m/4ft. 
 
Other filters can be used, for example, the Kodak 
OC and the Agfa-Gevaert G7, or the Philips 
PF710 safelamp. 
 
Spectral sensitivity 
MULTIGRADE IV RC was tested unfiltered to 
produce the following curves at density 0.5, 1.0 
and 1.5. 
 
Equal energy 
 
 
0.5 
 
1.0 
 
1.5 
 
3.0 
 
 
Relative log sensitivity
 
 
 
2.0
 
 
1.0
 
 
 
400 450  500 550 
Wavelength (nm) 
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