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FOMASPEED 412 SINGLE-WEIGHT RC GRADED PAPER

BLACK-AND-WHITE ENLARGING RC PHOTOGRAPHIC PAPER

In general

FOMASPEED is a universal black-and-white photographic paper on a resin-coated (RC) paper base. It is manufactured using silver chlorobromide emulsion that gives a neutral-to-medium warm tone to the resulting silver image. The paper features a very rich halftone scale ranging from shining whites to deep blacks. Its high speed makes it possible using high lens diaphragm numbers even when making large size enlargements. Developing agents incorporated into the emulsion layer facilitate rapid machine processing and a shortening of development times in manual processing to 60 - 90 seconds at 20 °C.

FOMASPEED is manufactured in a glossy, matt and velvet surface and in four basic contrast grades: soft (S), special (Sp), normal (N) and hard (C).

The speed of all contrast grades is identical, enabling change in contrast grade without difficulties.

Packaging

FOMASPEED is available in all usual sizes and in rolls up to the width of 108 cm.

Fomalux Relative Spectral Sensitivity Curve Fomalux Sensitometric Curve

The above shown curves are valid for the glossy surface. Any other surface, namely the matt one, causes a decrease in the maximum density value. According to the ISO standard, the following sensitometric values correspond to the individual contrast grades:
Contrast grade ISO speed R ISO speed P Dmax
soft 120 400 2.1
special 100 400 2.1
normal 80 400 2.1
hard 60 400 2.1

Safelighting

FOMASPEED should be handled and processed under yellow -brown, red or orange safelighting with filters (e.g. Ilford 902, Osram Duka 50, Durst Sanat, Kodak OC, Agfa G7, Agfa Y7J, etc.) in combination with a 15 watt lamp. Direct light must be diffused by inserting a matt glass. Because of its high speed, FOMASPEED should not be exposed to this safelighting for longer than 3 minutes and 10 minutes at a distance of 0.5 meter and 1 meter respectively.

Processing

FOMASPEED can be processed both manually in trays and automatically in roller developing machines approved for baryta-coated photographic papers. Suitable are common neutral-working or contrast-working developers. The resulting image tone is influenced by developers used.

For common work and a neutral image tone, Fomatol LQN or Fomatol P developers are recommended. Using a special Fomatol PW developer, brown -green image tones can be obtained. From developers of foreign manufacturers, developers such as Kodak Polymax or Dektol, Tetenal Variospeed, Ilford PQ Universal or Bromophen, etc. are recommended. For fixing, a common acid fixer (e.g. pulver-based Fomafix P) or Fomafix rapid fixer should be used.


Manual processing in trays

Processing step Processing bath Time Temperature (°C)
Development Fomatol LQN (1+7) 60-90 sec. 20
Stopping 2 % acetic acid 10 sec. 20
or Fomacitro (1+19) 10-20 sec. 20
Fixing Fomafix (1 + 5) 90 sec. 20
Fomafix P 3 min. 20
Washing running water 2 min. above 12
4 min. below 12

Machine processing in developing machines

Processing step Processing bath Time Temperature (°C)
Development Fomatol LQN (1+4) 25-35 sec. 30
Stopping 2 % acetic acid 20 sec. -
or Fomacitro (1+19) 10-20 sec. -
Fixing Fomafix (1 + 5) 25-35 sec. 30
Washing running water 60 sec. 30

Toning

FOMASPEED can be toned using a direct toning method (the one -bath one, for instance by Fomatoner Indigo), or an indirect toning method (the two -bath one, for instance by Fomatoner Sepia). For a standard process, the indirect method is recommended. The brown image tone is particularly very popular, being obtained using Fomatoner Sepia set. By changing the temperature of toning bath, a wide scale of shades from light yellow-brown to dark-brown or violet-brown can be obtained.


Temperature (°C) Image tone
up to 20 light, yellow-brown
20 - 30 warm, neutral-brown
above 30 dark-brown to violet-brown

A blue tone can be obtained using the Fomatoner Indigo set. The resulting image tone depends on dilution, temperature and toning time.

Storage

FOMASPEED should be stored in an intact original packaging in a dry, cold place (temperatures of up to 20 °C and relative humidities ranging from 30 to 50 %), out of reach of harmful vapours, gases and ionizing radiation.