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Appendix
11
Dynamic Range (D-Range)
Indicated with a value expressing the light level reproducible in an image.
This is the same as the term “Exposure latitude” used with silver halide
film.
Generally, when the dynamic range is wide, overexposed and/or
underexposed areas are less likely to occur within the image, and when
the dynamic range is narrow, all image tones can be reproduced sharply
and accurately.
EV (Exposure Value)
Exposure value is determined by a combination of the aperture value and
the shutter speed.
EV Compensation
Process of adjusting the image brightness by changing the shutter speed
and/or aperture value.
Exif (Exchangeable image file format for digital still camera)
A standard digital camera file format established by the Japan Electronics
and Information Technology Industries Association (JEITA).
Exif-JPEG format
Exif stands for Exchangeable Image File Format. This image file format is
based on the JPEG image data format, and allows thumbnail images and
image properties to be embedded into the data. Software that does not
support this format processes the image as a regular JPEG image.
Exif-TIFF format
Exif stands for Exchangeable Image File Format. This image file format is
based on the TIFF image data format, and allows thumbnail images and
image properties to be embedded into the data. Software that does not
support this format processes the image as a regular TIFF image.
Histogram
A graph that shows the darkest and brightest points in an image. The
horizontal axis represents the brightness and the vertical axis represents
the number of pixels. This is useful when you check the exposure level of
an image.