Color Temperature of a light source describes the spectrum of light which is radiated from a theoretical “blackbody” (an ideal physical body that absorbs all radiation and incident light – neither reflecting it nor allowing it to pass through) with a given surface temperature.
Or. Most simply it is a method of describing the color characteristics of light through a numerical value that corresponds to the color emitted by a light source, measured in degrees of Kelvin (K) on a scale from 1,000 to 10,000.
More accurately. The color temperature of a light source is the temperature of an ideal backbody that radiates light of comparable hue to that of the light source.
The focal length of an optical system is a measure of how strongly the system converges or diverges light.
Without getting into an in-depth physics discussion, the focal length of a lens is an optical property of the lens.
The exact definition is:Focal length measures the distance, in millimeters, between the “nodal point” of the lens and the camera’s sensor.
FlexClip is an easy yet powerful video maker that helps you create videos for any purposes. Here are some of its key features:
* Millions of stock media choices (video clips, photos, and music).
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Exposure Fusion is a method for combining images taken with different exposure settings into one image that looks like a tone mapped High Dynamic Range (HDR) image.
