This article was originally written about five years ago but was never published on my web site, so I have slightly updated it to publish now. It is not a complete guide to exposure, which is a big subject, so I have included some links to simple and clear articles on various aspects of exposure and controlling depth of field on the excellent Cambridge in Colour, Luminous Landscape and other web sites. What is exposure? To beginners, exposure may be just a word, a strange concept that they haven’t come across in the context of their new hobby, so here is a simple definition (based on digital capture): “Exposure is the amount…