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2. Digital camera modes - Wikipedia

   en.wikipedia.org/wiki/Digital_camera_modes

   TAv: Some Pentax cameras such as Pentax K-50 has this mode for rapidly changing lights by using the widest aperture and the lowest ISO of continuously changing ISO between 1,000 and 3,200. [1] [2] The range of continuously changing ISO is dependent on the camera manufacture. Other manufacturers may provide this functionality through an ...

3. Film speed - Wikipedia

   en.wikipedia.org/wiki/Film_speed

   Photography – Colour negative films for still photography – Determination of ISO speed (withdrawn). New York: American Standards Association. Superseded by ANSI IT2.27-1988. ANSI IT2.27-1988 (1994-08/09?). Photography Color negative films for still photography – Determination of ISO speed. New York: American National Standards Institute.

4. Exposure value - Wikipedia

   en.wikipedia.org/wiki/Exposure_value

   Extended exposure time of 26 seconds. Exposure value is a base-2 logarithmic scale defined by (Ray 2000, 318): = ⁡ = ⁡ ⁡, where N is the f-number; and; t is the exposure time ("shutter speed") in seconds [2]

5. List of abbreviations in photography - Wikipedia

   en.wikipedia.org/wiki/List_of_abbreviations_in...

   GN = distance × f-number. One needs to specify the film or sensor ISO speed, and it is conventional to quote for ISO 100/21°. The distance can be in feet or in metres, the units to be specified. [4] GND: Graduated neutral density. A type of neutral density filter in which brightness is reduced more on one side of the filter than on the other ...

6. Sunny 16 rule - Wikipedia

   en.wikipedia.org/wiki/Sunny_16_rule

   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. Apart from the ...

7. Looney 11 rule - Wikipedia

   en.wikipedia.org/wiki/Looney_11_rule

   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.