This type of camera was important in the creation of a new segment and new period in the history of photography. It was with this category that amateur photographers were finally able to produce their family and travel snapshots, without the complications of ground glass cameras, with their tripods and black cloths.
Author - wlungov
Discusses the adaptation and use of large-format lenses with full-frame or smaller digital cameras. Concepts of circle of confusion, focal length and angle of view are reviewed as a basis to theoretically understand the reason for the loss of sharpness in the images thus produced.
Complete tutorial for building a device that allows you to make sun exposures with the same amount of UV radiation even at different times and atmospheric conditions. Useful for cyanotype, gum bichromat, salted paper and other historical photographic printing processes.
This lens, designed in 1881, was one of the highlights in photographic optics development prior to the introduction of crown barium glasses that allowed anastigmatic lenses.
Book on photographic optics from the beginning of photography to the first anastigmatic lenses.
19th century German and Austrin optics. Detailed photos, documents, catalogs and an excellent bibliography. A must have by the collector and scholar of the subject
Complete and detailed tutorial for you to produce a magnetic stirrer. It is an invaluable aid for preparing solutions in analog photography, such as developers and fixers. Assembly is very simple and uses low cost components.
Complete project for the construction of a photographic amplifier head using RGB LEDs. Includes your timer / mixer. It allows the use of multi-contrast papers and can be fixed on a 4x5 camera for use as an amplifier.
Tutorial shows you how to spot retouch black and white photos either by chemical reduction, or by depositing pigments to darken small areas. Procedure can be used for fault correction or creatively as photograph interventions. Example shows how to enhance catchlights.
Article shows how you can change the perspective of an enlargement by tilting the easel in the analog photo lab
A lens originally developed by Hermagis and launched in 1903, the Eidoscope is one of the highlights of soft focus optics. This sample was manufactured later by SOM Berthiot, which kept Eidoscope in its catalog after acquiring Hermagis in 1934.
This video-complete tutorial presents a photo retouching technique that aims to lighten up areas of a photograph using a Potassium Ferricyanide reducer.