Heliogravure VII – Observing the Lateral Etching

Single or binocular loupes are often used to observe the effects of the etching on the surface of the copperplate. Depending on the kind of resin or screen used, it is sometimes difficult to view in detail what happens at this level. In some cases would be very useful to take a picture in order …

Heliogravure VI – Screen Visibility

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 …

Fotomacrografía

La Fotomacrografía es el apartado de la fotografía que utiliza aumentos mayores que la unidad. En óptica fotográfica, el aumento es la relación de tamaño entre la imagen y el objeto en que ésta se origina, m = I/O. Una clasificación admitida en diversos textos nombra los ámbitos de la fotografía según el aumento (m) …