ChallengingTraditionsMasterworksfromaCopyMachine
Anoffice
copyingmachine,meantfordu-plicatinglettersanddocuments,isnotmostpeople's ideaofalikelysourceofart.But anumberofinventivephotogra-phershaveturneditintoapicturemakinginstrument.Theoffice
copierisakindofcamera,containinglight-sensitivemateri-aland
alens,
butitis
acamerathatcan-notbetakentoasubject;thesubjectmustbebroughttoit.Usually,thepictureis
madebyplacingthesubjectonthecopymachine'sdocumentglass.Becausemodernofficemachines
aredesignedtomakequickcopies,thereisnowaytocontrolfocusoralteraperture
setting.Depthoffieldisseverelylimited,
providingsharpfocusonlyforobjects
placeddirectly
onthedocumentglassor
withinaninchaboveit.Copyartists,how-
ever,capitalizeonthis
restriction,using
thelimiteddepthoffieldtotransform
subjectsinunusualways
(page168).
Although
afewphotographersstillusetheblack-and-whitemachines,mostpre-
ferthecolormachine.
Bothmachinesuti-
lizeaprocessthatcreatesapositiveim-agedirectlyandinstantly
bymeansofpowdered-inktoners,notthesilvercom-poundsusedinordinaryphotography.The
tonersaretransferredontopaperbyachargeofelectricity.Incolor
copyart,thephotographerisabletoadjustthebalanceandintensityofthecolor,andcanusealmost
anykindofpaper—includinghigh-qualityragpa-
per—forreproductions.Withinlimits,the
color
changesarepredictable,butvari-ationsintheamountofthepowdered-inktonersoften
yieldsurprisingresults.Copy-machineartistshavedevelopedmanydifferenttechniques.Some
createabstractdesignsbyshininglightbackintothecopier'sdocumentglass
(oppo-site,right).Othersduplicatetheirownhands,facesorotherthree-dimensionalobjects
(pages 169 and172).Stillotherscombinesingleprintstomakealargerpicture.Whateverthe
techniqueused,however,chanceandskillareunnerv-inglyintertwinedinthis
serendipitousart.