Air bubbles stains in gum bichromate
Air bubbles during the developing phase of bichromate gum result in dark stain on the print.
Archive for 'Darkroom'
Wet sizing with threading bar
Use a threading bar to quickly and evenly size paper sheets for historical processes.
How to eliminate the precipitate from Van Dyke Brown solutions
The addition of tartaric acid in VDB solutions reduce the quantity of precipitate.
Van Dyke Brown
Preparation of classical VDB solution and modified (without precipitate) VDB solution.
Dupont 4-R, Eder’s harmonizing reducer
Dupont 4-R intensify shadows and reduce high densities to correct exceptionally contrasted analogical negatives.
Basicity and color of cyanotype
Influence of basicity on the color of Cyanotype: the results using cheap and slightly basic paper are visually superior.
Tea toned posterized cynotype
A special tea toned posterized cyanotype print.
Paper for cyanotype: the winner is Bristol 350g
Bristol 350g: low-cost, deep shadows, high weight, fine detail for cyanotype.
