F-number lengths. Therefore, reduced–depth-of-field effects will require smaller f-numbers when using small-format cameras than when using larger-format cameras. Image sharpness is related to f/number through two different optical effects: aberration, due to imperfect lens design, and diffraction which is due to the wave nature of light. The blur optimal f-stop varies with the lens design. For modern standard lenses having 6 or 7 elements, the sharpest image is often obtained around 5.6–8, while for older standard lenses having only 4 elements (Tessar formula) stopping to 11 will give the sharpest image. The larger number of elements in modern lenses allow the
On Truth and Lies in a Nonmoral Sense Lies in a Nonmoral Sense" is one of the works most responsible for Nietzsche's reputation (albeit a contentious one) as "the godfather of postmodernism." On Truth and Lies in a Nonmoral Sense On Truth and Lies in a Nonmoral Sense (, also called On Truth and Lie in an Extra-Moral Sense) is a philosophical essay by Friedrich Nietzsche. It was written in 1873, one year after "The Birth of Tragedy", but was published by his sister Elisabeth in 1896 when Nietzsche was already mentally ill. The work deals largely with epistemological questions about the nature of truth and language, and