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Cameras with focal-plane shutters—even if they had PC connectors with X, F, M, or S-sync delays ("xenon sync" with zero delay and flashbulbs with peak delays of 5, 20, and 30 ms)—could not be used at speeds that attenuated guide numbers with most types of flashbulbs because their light curves were characterized by rapid rise and fall rates; the second shutter curtain would begin wiping ...
Popular exposure chart type, showing exposure values EV (red lines) as combinations of aperture and shutter speed values. The green lines are sample program lines, by which a digital camera automatically selects both the shutter speed and the aperture for given exposure value (brightness of light), when set to Program mode (P). (Canon, n.d.)
Digital cameras can achieve similar results (high dynamic range) by combining several different exposures (varying shutter or diaphragm) made in quick succession. Today, most cameras automatically determine the correct exposure at the time of taking a photograph by using a built-in light meter , or multiple point meters interpreted by a built ...
The f-number N is given by: = where f is the focal length, and D is the diameter of the entrance pupil (effective aperture).It is customary to write f-numbers preceded by "f /", which forms a mathematical expression of the entrance pupil's diameter in terms of f and N. [1]
Various models of Zeiss Ikon Contaflex SLR and Contessa cameras have built-in coupled match needle selenium meters. To change the aperture and/or shutter speed, move the red marker hand with the "O" shape loop, such that the "O" is aligned with the selenium meter needle; the shutter speed and aperture is thus selected.
The Nikon FA is an advanced amateur-level, interchangeable lens, 35 mm film, single-lens reflex (SLR) camera. It was manufactured by the Japanese optics company Nippon Kogaku K. K. ( Nikon Corporation since 1988) in Japan from 1983 to 1987 (available new from dealer stock until circa 1989).
Either the flash is firing too late or the shutter speed is too fast (shutter moving vertically). Note the different exposure levels. In photography, flash synchronization or flash sync is the synchronizing the firing of a photographic flash with the opening of the shutter admitting light to photographic film or electronic image sensor. PC-socket
In manual mode, a black needle points out the shutter speed recommended by the built-in, open aperture, through-the-lens (TTL), silicon photodiode (SPD) light meter, with 60/40 percent centerweighting, while a translucent green needle shows the actual camera-set shutter speed. The photographer adjusts the shutter speed and/or the lens aperture ...