你不是唯一的一個人，美國愛好者的大量17-85出現(xiàn)同樣的問題，其原因就是排線設(shè)計不合理，在調(diào)Zoom的時候排線會打死彎，然后就出現(xiàn)接觸不良甚至折斷的問題。有的人是一年壞一個。但是修理也不復(fù)雜，換掉排線就好了。但是仍然會壞。現(xiàn)在美國有人在網(wǎng)上賣替換的排線，6美元一個，讓你自己換。不只是17-85有這個問題，佳能的小數(shù)碼S100有同樣問題，調(diào)焦時會毀排線。我現(xiàn)在越來越懷疑佳能的質(zhì)量了。
下面是英文

wrote:Thesamehappenedtome:afterbeingrepairedin2009(at
thecostof290Euro)，thelensfailedagainin2010.WhenIbroughtit
toanindependentrepaircentre(IwasinCanada)thecommentwasthat
ithasadesignmistake(somethingwitharibbontransmittingdata)and
havingitrepairedwasstronglydiscouraged.Itooktheiradviceand
boughtthe15-85-untilnowverypleased.Noideaiftheissuehasbeen
solvedbyCanoninthe17-85stillonsaletoday.

Therepaircentreisright.Theef-s17-85doeshaveadesignmistake.There
isaflexicablegoingtothediaphragmthatbendssharplywhenyou
zoominandout.Theproblemisworstatthewideend.Ihadmy
lensfailandIdecidedtorepairthelensmyself.Itisnotsomething
thatIcanrecommendtoeveryonebutifyouarecarefulandareusedto
repairingequipmentitiscertainlypossible.Youwillneedtodosome
finesoldering.Mylensworksperfectlyagainforabout$6forthenew
flexicableuntilitbreaksagaininafewyears.Canondefinitely
droppedtheballhere.Everyef-s17-85willfaileventuallyandthatis
apitycauseit‘saveryusefullens.

Ifyouwanttoknowmoregoogleef-s17-85diaphragm.