Heliograbado, Parámetros de Calibración / Heliogravure, Calibration Issues

En la búsqueda de un mejor resultado, se van introduciendo pequeñas modificaciones de método en la práctica del heliograbado. Algunas son fruto de la re-lectura de textos clásicos, mientras que otras son consecuencia de hipótesis de trabajo que después de no pocas pruebas, se confirman con los resultados. Cabe aquí insistir en el hecho de …

XIX·XXI, a Work on Héliogravure and Stereoscopy

XIX·XXI, A tribute to the work of Charles Wheatstone and William Henry Fox Talbot 1. Introduction - On June the 21th of 1838, Charles Wheatstone presented his paper Contributions to the Physiology of Vision. Part the First. On some remarkable, and hitherto unobserved, Phenomena of Binocular Vision (9-WHEAT) on the Royal Society, about the priciples …

Héliogravure XI – Ink and Paper

In the last post Heliogravure X - Black...?, what black?, there was discussed how the ink employed affects the black density and also how it could compromise the tonal range, among other factors. Here, we will try to look at how the same ink influences the picture over different papers. The plate chosen for this …

Héliogravure X – Black…?, what black?

Deep, dense, rich, velvet and other adjectives are often used to describe the black richness in héliogravure (photogravure on copperplate). The choice of the ink and the way this ink is laid onto the paper surface, lends to the photogravure print a uniqueness not so easy to explain beyond the direct visual experience. But this …

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