underexposed Describes an image where not enough
light has been captured for the image to be correct,
resulting in muddy and solid shadows with no detail.
vignette A darker area around the edge of an image.
wide-anglelens Alensthatgivesawidefieldofview,
duethenatureofitsconstruction,wherethefocallengthis
smaller than the diagonal of the camera sensor. Wider
lenseswillgiveagreatersenseofdepthoffieldthanlonger
lenses.
whitebalance Atoolinpostproduction(CameraRAW)
wherethecolourvaluesofaRAWfilearerecalculatedand
remappedbythesoftwaretoproducea moreneutraland
realistic image.
whitepoint Thecolourcommonlydescribedintermsof
thecolourtemperatureofthebrightestreproduciblewhite
by a certaindevice, since thewhite pointof a material
affectsthereproductionofcolour.Forexample,thewhite
pointforaphotographicprintisthebrightnessandcolour
of the paper.
Zone System A system of printing from a negative,
describingascalefromthedensestblacktothebrightest
speculahighlight and thetonalranges inbetween, tobe
usedasatooltocorrectlyprintthefinalimage.Developed
by Ansel Adams, it is still used widely with digital
imaging.
zoomlens Alenswherethephotographerisabletovary
the focal length; referred to by name usually by the