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1、单反基础知识及图示(一)Thelightofthelensisprojectedontothephotosensitivebasetobesensitized,andthenthemirrorisrestoredtoitsoriginalposition,andtheimagecanbeseenagainintheviewingwindow・Thestructureofsinglelensreflexcamera,itiscompletelydeterminedthroughthelensfocusshooting,itcanseetheimageintheviewfinde
2、randfilmorphotosensitiveelement(CCDorCMOS)onthesame,itsshootingrangeandtheactualshooting:rangeisbasicallyconsistent,veryconducivetovisualframing.30D.jpgCanonEOS30DDSLRhasfouradvantagesoverDC:First,theadvantagesofimagesensors;Second,richlensselection;Third,excellentresponsespeed:Fourth,profe
3、ssionaloperationandfunction.30D_l186329513.jpg*thesizeofthephotoreceptorCCDiscriticaltoimagingquality.*300classDC,thesizeofthegeneralCCDis1/2.7inches.4millionpixellevelproductsupto1/1.8inches・(thatis,8.lmmx6.64mm)(suchasS0NY，sP92)ThesizeoftheOLYMPUS4/3systemis1&mmxl3.5mmCCDNikonDlx,itspixel
4、isonly5million470thousand,anditsCCDareaofupto23.7mmx15.6mmAnd135fullwidthsize,forthispurpose,36mm,x,24mm,Canon,5DormoreDSLRonlyusethissizeofphotosensitivedeviceWhatisfullwidth:referstothesizeofthephotoreceptorCCD/CMOSandthefilmsize36mm,x,24mmquiteBefore2007,onlyoneCanonwentoutoffullDSLR,and
5、inthesecondhalfof2007,Nikon,SONYandsoonalsomadeafullDSLRWhatisAPS-Camplitude:referstothephotosensitivedeviceCCD/CMOSsizeislessthanfullwidth,thereare1.25,thereare1.5,thereare1.6Whatis4/3system:referstothephotosensitivedeviceCCD/CMOSsizeof18.mmxl3.5mmsystem,mainlyOLYMPUS/PanasonicDSLRThesizes
6、ofvariousphotoreceptorsarecomparedLikeatraditionalcamera,a120cameraislargerthana135camera,dndthequalityoftheimageisclearlyhigherthanone.*pixelsarethesizeofthedotmatrix(size)ofthedigitalphotos・Thehigherthepixels,thehigherthequalityoftheimage,whiletheCCDareaisthesame・When6inchesofphotosarepri
7、nted,4millionpixelsand8millionpixelsdonotmakeanydifference・・CCDsizechart・JpgFigure2-CCDsize・JpgFigure2CCDdimensionsCCD1B31DF1B41E71_118633OO75.jpgShareto:QQspace,Tencent,friends,Renren,Kaixin,Sina,micro-blog,Tencent,micro-blog,Sohu,micro-blogCollectionof
