In a previous post, there has been discussed about the methods to prepare a digital screen intended for heliogravure. Although digital screens have been used with satisfying enough results, there is also a common discussion that consider the dust grain and analogue screens as better suited than the digitally prepared. The most often argument is …
Reproduction of Photogravure Prints
Introduction. As in other fine art disciplines, one useful aid to the own progress in photogravure is the critical contemplation of the artwork of other artists, successful or not, famous or not. Although the better valuable way to do that is a direct and alive viewing, in those days of Internet connection, we have also …
Heliogravure V – About Etching
In photogravure on copperplate, etching is commonly done by immersing the plate in several solutions of ferric chloride of different concentration. As the pigmented gelatin is thicker where the image tone is higher, the trick is to allow the ferric chloride to penetrate beginning by the thin gelatin in the shadow areas and progressively do …
Digitization System for Film Negatives and Slides (II)
The last post, Digitization System for Film Negatives and Slides (I), was dedicated to comment the oportunity to use a former photographic enlarger head as a part of a film digitization system by means of a digital camera. This second post comments aspects related with the illumination eveness in the diffusser supporting the negatives or …
Continue reading "Digitization System for Film Negatives and Slides (II)"
Sistema de Digitalización de Negativos y Diapositivas (II)
En el post anterior, Sistema de Digitalización de Negativos y Diapositivas (I), se comentó la posibilidad de utilizar un cabezal de ampliadora fotográfica como parte de un sistema de digitalización de negativos y diapositivas mediante reproducción con cámara de sensor electrónico. En esta segunda entrega se comentarán aspectos relacionados con la comprobación de la uniformidad …
Continue reading "Sistema de Digitalización de Negativos y Diapositivas (II)"
Carles Mitjà - ASIS/FRPS 