ABOUT DRY PLATE NEGATIVES When photographing In the field silver gelatin dry plate negative process can be more practical than the wet collodion process. Emulsion is poured on the glass plate and dried before taking it out in the field. The blue-sensitive emulsion gives the unique feel of 19th century photographs. They are also more sensitive to (more…)
ABOUT THE PROCESS Casein printing is a permanent inexpensive printing process closely related to gum bichromate printing. The Casein process is not “better” than the Gum Bichromate just different enough to make it interesting and worthwhile to learn. It allows multiple colours through the addition of layers and can be used with other print processes. (more…)
ABOUT THE ARGYROTYPE PRINT: This ‘user-friendly’ iron-based silver printing process was devised in 1996 by Mike Ware, using an unusual salt – silver sulphamate in a ‘single-bottle’ sensitiser solution with a long shelf-life. The resulting purplish-brown print of nanoparticle silver has a finer gradation than the traditional iron-silver processes, (more…)
ABOUT THE SALT PRINT: This is a simple process with a number of challenges to master. Salt prints are created by coating paper in a solution of sodium chloride (common salt) followed by a silver nitrate solution to create silver chloride. Exposing to UV light changes the silver chloride to image making metallic silver. Salt (more…)
ABOUT CARBON PRINTING The carbon printing process uses colour pigments producing one of the the most permanent coloured photographs. The use of pigment allows any colour photograph on almost any surface. The beautiful tonal scale resolves fine detail. It relies upon the ability of sensitized gelatin when exposed to U V light becoming insoluble in (more…)
Four Colour Carbon ABOUT THE CARBON PROCESS The carbon process, initially a black-and-white process using lampblack (carbon black), was invented by Alphonse Poitevin in 1855. The process was later adapted to color, through the use of pigments, by Louis Arthur Ducos du Hauron in 1868. Carbon photographs (more…)
ABOUT TINTYPES Tintypes or ferrotypes are positive images created by a wet plate process. The black “tin” plate is coated with collodion, exposed in a large format camera and processed in a darkroom before the plate is dry. HISTORY OF TINTYPES The tintype was (more…)
ABOUT CYANOTYPE This process requires no other chemicals, can be exposited in sunlight and developed simply in water. Cyanotypes provide a beautiful image in stable Prussian blue pigment. The image colour may be easily modified by a variety of toning agents. THE CANOTYPE HISTORY Sir John Herschel’s traditional cyanotype process, now practiced for 166 years, (more…)
PRINTING PHOTOGRAPHS ON FABRIC The workshop allows you to create photographs on natural fibres, cotton, linen and silk with a surprising clarity. It provides the following advantages over paper: Movement – especially silks Can be stretched onto a frame Wearable – cyanotype can (more…)
ABOUT LIQUID EMULSION This unique photographic printing process allows the artist the flexibility to hand coat silver gelatin emulsion on to a wide selection of surfaces including watercolour papers, timber, metals, fabric and glass. You can select the formula that suits your needs, making it from the raw (more…)
