Bergger CB Art Warm Tone, Double Weight Fiber Base, Black & White Enlarging Paper, 11x14 - 25 Sheets Glossy, Graded #4

PRESTIGE GRADED CB ART is a premium double weight photographic paper with a high quality chlorobromide emulsion. Its exceptional fiber base gives it un-matched whiteness (300g). Its silver content allows for a wide exposure range. Full development brings out remarkable gradation. It comes in glossy surface and gives a warm, brown image tone.

Red safelight as for bromide paper is recommended. For instance, ENCAPSULITE R10 or WRATTEN 1A allows good darkroom lighting. It is a good idea to test for safelight fog from time-to-time.

Double weight glossy PRESTIGE GRADED CB ART paper can be exposed with all enlarger light source.

Process in any good quality paper developer at 20°C (68°F) for 1 1/2 to 2 minutes with continuous agitation. The use of warm tone developers such as Agfa Neutol-WA, Kodak Selectol, etc., will yield maximum warm tone results. Normal capacity : 1 - 2 1/2 sqm/litre.

An acid stop bath is optional but recommended. It quickly stops development by neutralizing alkali. This also helps extend fixer life. Dilution : 25 cc of 28% acetic acid in 1 liter of water. Stop bath time : 15 seconds or 20 to 30 seconds of water rinse.

Treat in a conventional sodium thiosulfate fixer for a minimum of 5 min. at 20°C. Normal fixing capacity is 1 ½ sqm/ liter. A two-bath fixing method (at 2 ½ min. per bath) may be used to avoid under-fixing. When the first bath is exhausted, replace it with the second bath and mix a fresh ½ second bath f.

With ammonium thiosulfate rapid fixers, treat prints for 30 to 45 seconds only, then give a thorough pre-wash for 5 min. Next, treat with a wash-aid (see WASHING, below) with frequent agitation for 10 min, before transferring to a final wash.

PRESTIGE GRADED CB ART responds well to bleaching and toning. To increase the impression of warmth, you may wish to use a toner such as Kodak Brown toner or a sepia toner.

The use of a wash aid (such as Kodak Hypo Clearing Agent) will reduce your wash time and increase the efficiency of your washing. As well, it will help guarantee the permanence of your photograph.

Wash PRESTIGE GRADED CB ART in running water at a rate fast enough to completely change once every 5 minutes. Wash time is 1 hour at 20°C (68°F) or 30 min. if a wash aid has been used.

To effect even and rapid drying, you may use a wetting agent as a final rinse. Excess water should be removed from the surface of prints with a clean sponge or squeegee. Prints may then be dried in dust-free air on drying screens or in a clean photo-blotter.
PRESTIGE GRADED CB ART may be retouched, spotted and mounted using normal methods.