Motion blur is the apparent streaking of rapidly moving objects in a still image. It results when the image being recorded changes during the recording of a single exposure, either due to rapid movement or long exposure. This image shows a motion blur because the bus that can be seen is moving whilst the photo is being taken which captures the motion of the bus.
In digital photography ISO measures the sensitivity of the image sensor. The lower the number the less sensitive your camera is to light and the finer the grain.
In photography, shutter speed or exposure time is the length of time when the film or digital sensor inside the camera is exposed to light, also when a camera's shutter is open when taking a photograph.The amount of light that reaches the film or image sensor is proportional to the exposure time. 1/500th of a second will let half as much light in as 1/250th.
In photography and digital photography, aperture is the unit of measurement that defines the size of the opening in the lens that can be adjusted to control the amount of light reaching the film or digital sensor. The size of the aperture is measured in F-stop.
The
main f stops in your camera are 2.8,4.0, 5.6, 8,11,16,22, 32. for each increase in f stop value the amount
of light entering the camera is reduced by a half.
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