Close reading is deep analysis of how a literary text function; it is both a reading process and something you include in a literary analysis paper. When you read a text paying specific attention to certain literary elements, looking for particular patters, or following the development of a particular character, you are practicing close reading. Likewise, when you watch a film with particular emphasis on a certain element, you are doing a close reading. Of course, when one writes an essay that teases out a certain element, this is the beginning of a close reading. Like literary analysis more generally, close reading is not a means in and of itself. Close reading helps inform the larger meaning or import of a work.
Don Ihde called the hypothesis being 'hyped' and referred to clear evidence about the use of optical tools by, ., Albrecht Dürer and Leonardo da Vinci and others. As well the 1929 Encyclopædia Britannica  contains an extensive article on the camera obscura and cites Leon Battista Alberti as the first documented user of the device as early as 1437.  Ihde states abundant evidence for widespread use of various technical devices at least in the Renaissance and . in Early Netherlandish painting .  Jan van Eyck 's 1434 painting Arnolfini Portrait shows a convex mirror in the centre of the painting. Van Eyck also left his signature above this mirror,  showing the importance of the tool. The painting includes a crown glass window in the upper left side, a rather expensive luxury at the time. Van Eyck was rather fascinated by glass and its qualities, which was as well of high symbolic importance for his contemporaries.  Early optical instruments were comparatively expensive in the Medieval age and the Renaissance.