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Long Exposure Multiple Flash Photographic Technique
Night photography (also called nighttime photography) refers to the activity of capturing images outdoors at night, between dusk and dawn. Night photographers generally have a choice between using artificial lighting and using a long exposure, exposing the shot for seconds, minutes, or even hours in order to give photosensitive film or an image sensor enough time to capture a desirable image. With the progress of high-speed films, higher-sensitivity digital sensors, wide-aperture lenses, and the ever-greater power of urban lights, night photography is increasingly possible using available light. History The very long exposure times of early photographic processes didn't mean people didn't try to take photographs at night from quite early on. The development of mechanical clock drives meant cameras attached to telescopes could eventually capture successful images of celestial objects. The first-known attempt at astronomical photography was by Louis Jacques Mandé Daguerre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Night Photography
Night photography (also called nighttime photography) refers to the activity of capturing images outdoors at night, between dusk and dawn. Night photographers generally have a choice between using artificial lighting and using a long exposure, exposing the shot for seconds, minutes, or even hours in order to give photosensitive film or an image sensor enough time to capture a desirable image. With the progress of high-speed films, higher-sensitivity digital sensors, wide-aperture lenses, and the ever-greater power of urban lights, night photography is increasingly possible using available light. History The very long exposure times of early photographic processes didn't mean people didn't try to take photographs at night from quite early on. The development of mechanical clock drives meant cameras attached to telescopes could eventually capture successful images of celestial objects. The first-known attempt at astronomical photography was by Louis Jacques Mandé Daguerre, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Sensor
A digital sensor is an electronic or electrochemical sensor, where data is digitally converted and transmitted. Sensors are often used for analytical measurements, e.g. the measurement of chemical and physical properties of liquids. Typical measured parameters are pH value, conductivity, oxygen, redox potentials, and others. Such measurements are used in the industrialized world and give vital input for process control. Sensors of analogue type were used in the past, but today more and more digital sensors are used. This article describes the difference between them and discusses the reason for the development of digital sensors. General aspects Digital sensors are the modern successors of analog sensors. Digital sensors replace analog sensors stepwise, because they overcome the traditional drawbacks of analog sensor systems (cf chapter 3) History Electronic and electrochemical sensors are typically one part of a measuring chain. A measuring chain comprises the sensor itself, a c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bill Brandt
Bill Brandt (born Hermann Wilhelm Brandt; 2 May 1904 – 20 December 1983)Paul DelanyBill Brandt: A Life was a British photographer and photojournalist. Born in Germany, Brandt moved to England, where he became known for his images of British society for such magazines as '' Lilliput'' and ''Picture Post''; later he made distorted nudes, portraits of famous artists and landscapes. He is widely considered to be one of the most important British photographers of the 20th century. Life and work Born in Hamburg, Germany, son of a British father and German mother, Brandt grew up during World War I, during which his father, who had lived in Germany since the age of five, was interned for six months by the Germans as a British citizen. Brandt later disowned his German heritage and would claim he was born in South London. Shortly after the war, he contracted tuberculosis and spent much of his youth in a sanatorium in Davos, Switzerland. He traveled to Vienna to undertake a course of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jessie Tarbox Beals
Jessie Tarbox Beals (December 23, 1870 – May 30, 1942) was an American photographer, the first published female photojournalist in the United States and the first female night photographer. She is best known for her freelance news photographs, particularly of the 1904 St. Louis World's Fair, and portraits of places such as Bohemian Greenwich Village. Her trademarks were her self-described "ability to hustle" and her tenacity in overcoming gender barriers in her profession. Early life and education Beals was born Jessie Richmond Tarbox on December 23, 1870, in Hamilton, Ontario, the youngest child of John Nathaniel Tarbox and Marie Antoinette Bassett. John Tarbox was a sewing machine manufacturer, and his partnership with the largest sewing machine company in Canada made the Tarbox family wealthy. When Beals was seven, however, her father lost all of his savings in a bad investment and began drinking heavily. He eventually left home at the insistence of Beals's mother, who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Stieglitz
Alfred Stieglitz (January 1, 1864 – July 13, 1946) was an American photographer and modern art promoter who was instrumental over his 50-year career in making photography an accepted art form. In addition to his photography, Stieglitz was known for the New York art galleries that he ran in the early part of the 20th century, where he introduced many avant-garde European artists to the U.S. He was married to painter Georgia O'Keeffe. Early life and education Stieglitz was born in Hoboken, New Jersey, the first son of German Jewish immigrants Edward Stieglitz (1833–1909) and Hedwig Ann Werner (1845–1922). His father was a lieutenant in the Union Army and worked as a wool merchant. He had five siblings, Flora (1865–1890), twins Julius (1867–1937) and Leopold (1867–1956), Agnes (1869–1952) and Selma (1871–1957). Alfred Stieglitz, seeing the close relationship of the twins, wished he had a soul mate of his own during his childhood. Stieglitz attended Charlier I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coney Island
Coney Island is a peninsular neighborhood and entertainment area in the southwestern section of the New York City borough of Brooklyn. The neighborhood is bounded by Brighton Beach and Manhattan Beach, Brooklyn, Manhattan Beach to its east, Lower New York Bay to the south and west, and Gravesend, Brooklyn, Gravesend to the north and includes the subsection of Sea Gate, Brooklyn, Sea Gate on its west. More broadly, Coney Island or sometimes for clarity the Coney Island peninsula consists of Coney Island proper, Brighton Beach, and Manhattan Beach, Brooklyn, Manhattan Beach. This was formerly the westernmost of the Outer Barrier islands on the southern shore of Long Island, but in the early 20th century it became a peninsula, connected to the rest of Long Island by Land reclamation, land fill. The origin of Coney Island's name is disputed, but the area was originally part of the colonial town of Gravesend. By the mid-19th century it had become a seaside resort, and by the late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Street Light
A street light, light pole, lamp pole, lamppost, street lamp, light standard, or lamp standard is a raised source of light on the edge of a road or path. Similar lights may be found on a railway platform. When urban electric power distribution became ubiquitous in developed countries in the 20th century, lights for urban streets followed, or sometimes led. Many lamps have light-sensitive photocells that activate the lamp automatically when needed, at times when there is little-to-no ambient light, such as at dusk, dawn, or at the onset of dark weather conditions. This function in older lighting systems could be performed with the aid of a solar dial. Many street light systems are being connected underground instead of wiring from one utility post to another. Street lights are an important source of public security lighting intended to reduce crime. History Preindustrial era Early lamps were used by Greek and Roman civilizations, where light primarily served the purpose of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John William Draper
John William Draper (May 5, 1811 – January 4, 1882) was an English-born American scientist, philosopher, physician, chemist, historian and photographer. He is credited with producing the first clear photograph of a female face (1839–40) and the first detailed photograph of the moon in 1840. He was also the first president of the American Chemical Society (1876–77) and a founder of the New York University School of Medicine. One of Draper's books, the ''History of the Conflict between Religion and Science'', popularised the conflict thesis proposing intrinsic hostility in the relationship between religion and science. It was widely read and was translated into several languages. His son, Henry Draper, and his granddaughter, Antonia Maury, were astronomers; his granddaughter, Carlotta Maury (Antonia's younger sister), was a paleontologist; his eldest son, John Christopher Draper, was a chemist; and son , was a meteorologist. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Jacques Mandé Daguerre
Louis-Jacques-Mandé Daguerre ( , ; 18 November 1787 – 10 July 1851) was a French artist and photographer, recognized for his invention of the eponymous daguerreotype process of photography. He became known as one of the fathers of photography. Though he is most famous for his contributions to photography, he was also an accomplished painter, scenic designer, and a developer of the diorama theatre. Biography Louis Daguerre was born in Cormeilles-en-Parisis, Val-d'Oise, France. He was apprenticed in architecture, theatre design, and panoramic painting to Pierre Prévost, the first French panorama painter. Exceedingly adept at his skill of theatrical illusion, he became a celebrated designer for the theatre, and later came to invent the diorama, which opened in Paris in July 1822. In 1829, Daguerre partnered with Nicéphore Niépce, an inventor who had produced the world's first heliograph in 1822 and the oldest surviving camera photograph in 1826 or 1827. Niépce d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrophotography
Astrophotography, also known as astronomical imaging, is the photography or imaging of astronomical objects, celestial events, or areas of the night sky. The first photograph of an astronomical object (the Moon) was taken in 1840, but it was not until the late 19th century that advances in technology allowed for detailed stellar photography. Besides being able to record the details of extended objects such as the Moon, Sun, and planets, modern astrophotography has the ability to image objects invisible to the human eye such as dim stars, nebulae, and galaxies. This is done by long time exposure since both film and digital cameras can accumulate and sum photons over these long periods of time. Photography using extended exposure-times revolutionized the field of professional astronomical research, recording hundreds of thousands of new stars, and nebulae invisible to the human eye. Specialized and ever-larger optical telescopes were constructed as essentially big cameras to rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
