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A shutter speed of 1 ⁄ 50 s with an f /4 aperture gives the same exposure value as a 1 ⁄ 100 s shutter speed with an f /2.8 aperture, and also the same exposure value as a 1 ⁄ 200 s shutter speed with an f /2 aperture, or 1 ⁄ 25 s at f /5.6. [citation needed]
Exposure value is a base-2 logarithmic scale defined by (Ray 2000, 318): where. N is the f-number. t is the exposure time ("shutter speed") in seconds [2] EV 0 corresponds to an exposure time of 1 s and an aperture of f/1.0. If the EV is known, it can be used to select combinations of exposure time and f-number, as shown in Table 1.
Shutter priority or time value. Automatic exposure mode where the photographer sets a shutter speed, and the AE firmware automatically sets the appropriate lens aperture. [4] SC: Soft Capture. Capture of light emitting objects as the primary subject with light quality that is not primary but equally soft or washed as the background. [citation ...
On a sunny day with ISO 400 film / setting and aperture at f /16, set shutter speed to 1 / 400 or 1 / 500 . As with other light readings, shutter speed can be changed as long as the f-number is altered to compensate, e.g. 1 / 250 second at f /11 gives equivalent exposure to 1 / 125 second at f /16 .
Shutter (photography) In photography, a shutter is a device that allows light to pass for a determined period, exposing photographic film or a photosensitive digital sensor to light in order to capture a permanent image of a scene. A shutter can also be used to allow pulses of light to pass outwards, as seen in a movie projector or a signal lamp.
Like the 1960 prototype, the Metallica had a bayonet lens mount, and also featured an improved Copal-square metallic shutter. But the biggest innovation was the fully automatic shutter operation coupled to the TTL meter. The metering system, for the first time in a 35mm SLR, controlled the shutter speed automatically based on the aperture set ...
An example of the use of f-numbers in photography is the sunny 16 rule: an approximately correct exposure will be obtained on a sunny day by using an aperture of f /16 and the shutter speed closest to the reciprocal of the ISO speed of the film; for example, using ISO 200 film, an aperture of f /16 and a shutter speed of 1 ⁄ 200 second. The f ...
An approximately correct exposure will be obtained on a sunny day using ISO 100 film, an aperture of f /16 and a shutter speed of 1/100 of a second. This is called the sunny 16 rule: at an aperture of f /16 on a sunny day, a suitable shutter speed will be one over the film speed (or closest equivalent).