920. Note

Note. For softness in any of the grades of Cyko paper always increase the exposure and dilute the developer with water. The more dilution the softer will be the results, providing sufficient exposure has been given. This is just the reverse to the manipulation of Velox.

921. For the amateur and others who do not care to compound their own developers, we recommend the prepared solutions.

922. Cyko Liquid Non-Abrasion Developer

Cyko Liquid Non-Abrasion Developer. This developer has unique qualities which will appeal to the amateur. It is adapted to any grade of Cyko, but especially to Glossy Cyko No. 3, for the reason that it prevents abrasion marks, also called friction marks, to which all glossy developing-out papers are more or less susceptible.

923. There is still another feature which is of great moment, viz.: It serves as a guide to thorough fixing. The print is not absolutely fixed until the canary yellow color entirely disappears by fixing in a correctly prepared acid hypo bath. This developer should be used as follows:

924. For Yellow Label (Normal) Cyko, take

Cyko Concentrated Liquid Developer............

. 1 oz.

Water..........................................

4 ozs.

925. For Blue Label (Contrast) Cyko, take

Cyko Concentrated Liquid Developer...........

2 ozs.

Water..........................................

4 ozs.

926. It is important that this developing solution, while in use, should be kept at a temperature between 65 and 70 degrees Fahr.

927. Fixing

Fixing. Any acid hypo bath used for gaslight papers may be also used for fixing Cyko papers, but the following formula may be employed. A sufficient amount of the solution should be prepared to fix the prints thoroughly in 15 minutes, and acid hardener should always be added, as it will overcome the tendency of the fixing bath to cause blisters and even stains:

928. Hypo Fixing Bath. Solution A.-

Hypo...................................................

12 ozs.

Water..................................

64 ozs.

Dissolve and then add:

929. Solution B (Hardener)

Solution B (Hardener).

Water...........................................

.5 ozs.

Sodium Sulphite (Powdered).............

1/2 oz.

Acetic Acid No. 8..............................

3 ozs.

Alum (Powered).......................................

1/2 oz.

930. Acid hypo is also put up in prepared packages ready for dissolving. A 15 cent package of Cyko Acid Fixing Hypo Salts will make one pint of solution, which will fix two dozen 4x5 prints.

931. Any acid fixing bath can be used repeatedly. It keeps well, but will by degrees become alkaline through the gradual addition of developer, which adheres to the print and is carried into the fixing bath. The bath should be discarded entirely when it becomes muddy. If the fixing bath becomes exhausted it will be frothy, or suds will remain on the surface when it is violently agitated.