focal line
61APS-C — Advanced Photo System type C (APS C) is an image sensor format approximately equivalent in size to the Advanced Photo System classic size negatives. These negatives were 25.1 × 16.7 mm and had an aspect ratio 3:2. Sensors meeting these… …
62Lenses for SLR and DSLR cameras — This article is about photographic lenses for single lens reflex film cameras (SLRs) and digital single lens reflex cameras (DSLRs). Furthermore, the emphasis is on modern lenses for 35 mm film SLRs and for DSLRs with sensor sizes less than or… …
63Circle of confusion — For the closely related topic in microscopy, see Point spread function. In optics, a circle of confusion is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as… …
64Chromatic aberration — On top is corner detail in a photograph taken with a higher quality lens; bottom is a similar photograph taken with a wide angle lens showing severe visible lateral chromatic aberration. The effect is pronounced on the right side of the building… …
65Airy disk — Computer generated image of an Airy disk. The gray scale intensities have been adjusted to enhance the brightness of the outer rings of the Airy pattern …
66painting — /payn ting/, n. 1. a picture or design executed in paints. 2. the act, art, or work of a person who paints. 3. the works of art painted in a particular manner, place, or period: a book on Flemish painting. 4. an instance of covering a surface… …
67JERUSALEM — The entry is arranged according to the following outline: history name protohistory the bronze age david and first temple period second temple period the roman period byzantine jerusalem arab period crusader period mamluk period …
68Parabola — For other uses, see Parabola (disambiguation). A parabola …
69Nikon F-mount — The Nikon F of 1959 embodies the original F mount. Type Bayonet External diameter 44 mm Tabs 3 Flange 46.5 …
70ḤASIDISM — ḤASIDISM, a popular religious movement giving rise to a pattern of communal life and leadership as well as a particular social outlook which emerged in Judaism and Jewry in the second half of the 18th century. Ecstasy, mass enthusiasm, close knit …
