DPI(dotsperinch) Theunitsbywhichwemeasurethe
numberofpixelsper inchwithinan image. Forprinting
purposesmost photographerswill crop an image to 300
DPI,and forviewingonscreenthemostcommonly used
size is 72 DPI.
exposure The quantity of light needed to create an
image.
EXIFData(exchangeimagefileformat) Datatakenby
thecameraandexportedalongsidetheimage,carryingwith
it details such as thecamera settings,lens, aperture for
future reference.
ƒ-stop Referstotheaperturesettingofthelensandwill
determinetheamountoflightthatentersthecamera,and
alsothedepthoffieldoftheimage;theƒ-numbercanbe
anything from ƒ1.2 (wide aperture) to ƒ32 (small aperture).
fastlens Lensthatletsmorelightintothecamerafaster,
andassuchlenseswithawidermaximumaperturevalue
will be faster.
feathering Method ofusingthelight,either natural or
flash,toproduceapleasingandflatteringfall-offoflight
onto the subject.
fileformat Indigitalimagerytherearethreemainfile
formatsthatthephotographershouldbe awareof:JPEG,
TIFF and RAW.
file sizes Digital file sizes are measured in kilobytes,
megabytes and gigabytes.