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To photograph outdoor night sports with an ISO 400–speed imaging medium, search Table 2 for "Night sports" (which has an EV of 9 for ISO 100), and add 2 to get EV 400 = 11. For lower ISO speed, decrease the exposure values (increase the exposures) by the number of exposure steps by which the speed is less than ISO 100.
Sunlit subject shot on a digital camera set to ISO 100, exposed at f/8 at 1/400 second which is the same exposure value as f/16 for 1/100 second, the recommended "sunny 16" exposure In photography, the sunny 16 rule (also known as the sunny f /16 rule ) is a method of estimating correct daylight exposures without a light meter .
Action or sports modes increase ISO and use a faster shutter speed to capture the action. Landscape modes use a small aperture to gain depth of field. Flash may be deactivated. Text mode increases in-camera sharpening to allow to photograph texts. Portrait mode widens the aperture to throw the background out of focus (see Bokeh). The camera may ...
The system I use is to decide upon lens opening (as demanded by depth of field) and, working with the guide number of the bulb, figure out how far the flash should be from the subject. Upon introducing the new inverse of the squares concept in 1939, General Electric initially referred to the new system as "Flash Numbers". [11]
For photographic film, sensitivity is referred to as film speed and is measured on a scale published by the International Organization for Standardization (ISO). Faster film, that is, film with a higher ISO rating, requires less exposure to make a readable image. Digital cameras usually have variable ISO settings that provide additional ...
For daylight photography, there is a similar rule called the Sunny 16 rule. The basic rule is: "For astronomical photos of the Moon's surface, set aperture to f /11 and shutter speed to the [reciprocal of the] ISO film speed [or ISO setting]." [1] With ISO 100, the photographer should set the shutter speed to 1/100 or 1/125 second.
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