Pentax K-X Operating Manual page 89

sRGB (standard RGB)
International standard ofcolor space established by the IEC (International
Electrotechnical Commission). This isdefined from color space f or
computer monitors and isalso used a sthe standard color s pace forExif.
Vignetting
The picture edges a re blackened when p art o fthe light c oming from the
subject isblocked bythe hood o rfilter r ing, o rwhen t he flash ispartially
blocked bythe lens.
White Balance
While s hooting, color temperature isadjusted tomatch the light source so
that t he subject appears tohave c orrect color.