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A computer file format for coloured images, restricted to 256 colours and useful for small file-size. [8] GN: Guide number. A value indicating the power of an electronic flash apparatus, and used to estimate exposure. GN = distance × f-number. One needs to specify the film or sensor ISO speed, and it is conventional to quote for ISO 100/21°.
As is the norm for PTP, the communication takes place over a USB connection. When interacting with the camera in this manner, it is expected that the USB endpoints are in (synchronous) Bulk Transfer Mode, for getting/setting virtually all the camera's features/properties (such as ISO, Aperture, Shutter speed and focus). Events raised by the ...
For example, as of 2008, Nikon cameras allow one to set the maximum and minimum ISO sensitivities, and slowest shutter speed that will be used in automatic modes, [4] while Canon cameras will select within the fixed range of ISO 400–ISO 800 in Auto ISO mode. In Nikon cameras, the Auto ISO mode first adjusts the shutter speed, keeping ISO at ...
Exchangeable image file format (officially Exif, according to JEIDA/JEITA/CIPA specifications) [5] is a standard that specifies formats for images, sound, and ancillary tags used by digital cameras (including smartphones), scanners and other systems handling image and sound files recorded by digital cameras.
The International Organization for Standardization (ISO / ˈ aɪ s oʊ /; [3] French: Organisation internationale de normalisation; Russian: Международная организация по стандартизации) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member ...
All cameras will have roughly the same ISO setting for a given scene at the same shutter speed and the same f-number – resulting in substantially less noise with the full frame camera. Conversely, if all cameras were using lenses with the same aperture diameter, the ISO settings would be different across the cameras, but the noise levels ...
Nearly all digital cameras can process the image from the sensor into a JPEG file using settings for white balance, color saturation, contrast, and sharpness that are either selected automatically or entered by the photographer before taking the picture. Cameras that produce raw files save these settings in the file, but defer the processing.
ISO is the abbreviation for the International Organization for Standardization. ... Digital camera ISO, light sensitivity of a digital image sensor;