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Digital photo of Kearny Generating Station, converted to black and white in Lightroom, with color channels adjusted to mimic the effect of a red filter. 1968 group portrait of a Swedish musical's cast. Black-and-white photography is considered by some to be more subtle and interpretive, and less realistic than color photography.
Comparisons with automatic instruments at German stations revealed that during summer the differences of the two measurement systems can reach up to 4 h per day. The mean difference was −0.23 h, i.e. the measurements of the Campbell–Stokes recorder are larger than the automatic.
Sepia toning is a specialized treatment to give a black-and-white photographic print a warmer tone and to enhance its archival qualities. The metallic silver in the print is converted to a sulfide compound, which is much more resistant to the effects of environmental pollutants such as atmospheric sulfur compounds.
A Campbell–Stokes sunshine recorder. A sunshine recorder is a device that records the amount of sunshine at a given location or region at any time. The results provide information about the weather and climate as well as the temperature of a geographical area.
It is later destroyed; the earliest surviving example of his "heliographic process" is from 1825. [1] 1824 – Niépce makes the first durable, light-fast camera photograph, similar to his surviving 1826–1827 photograph on pewter but created on the surface of a lithographic stone. [7] It is destroyed in the course of subsequent experiments.
Specific black-and-white photographs. It should not contain the images (files) themselves, nor should it contain free- or fair-use images which do not have associated articles. It should not contain the images (files) themselves, nor should it contain free- or fair-use images which do not have associated articles.
The majority of black-and-white infrared art, landscape, and wedding photography is done using orange (Wratten #15 or 21), red (#23, 25, or 29) or visually opaque (#72) [d] filters over the lens to block the blue visible light from the exposure. Very dark-red (#29) filters block out almost all blue, and visually opaque (#70, 89b, 87c, 72 ...
It forms part of a standard weather station and holds instruments that may include thermometers (ordinary, maximum/minimum), a hygrometer, a psychrometer, a dewcell, a barometer, and a thermograph. Stevenson screens may also be known as a cotton region shelter, an instrument shelter, a thermometer shelter, a thermoscreen, or a thermometer screen.