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Sony DSLR-A100 - Page 75

Sony DSLR-A100
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"_" About Histogram
Dark Light
Z A Ilistogram is tile luminance distribution that shows how many
pixels ill a particular brighlness exisl ill file picture, The
rr histogram display of this camera shows the brigftmess on the
horizontal axis (left side is black, right side is white) and die
o number of pixels on tile vertical axis. The exposure
23 colnpensation will cllange lhe ]lislogral/l accordillgly. Below is
all example.
For details on pixels --+ page 17.
Use the exposure
compensation on
the positive side.
Shooting with the
exposure
compensation on the
positive side brightens
the whole picture,
making the entire
histogram shift to the
bright side (right side).
If the exposure
compens ition is used
on the negative side,
the histogram will
shill to the other side.
Both ends of tile his(ogram consist only of data of 100% black or white*. Tfterelore, when the data is
transllm-ed to a PC laler in order to compensate it, il is impossible lit restore the area that has been
bhJcked/whi(ened out. Checking the ftis(ogram allows you (o know the slams of tile image belbmhand.
* To be exach a color image is expressed wi(h RGB. Tiros, the while is equal tit R255, G255. B255. and
lhe black is equal 1o R0, G0, B0.
g
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