Dalagyada faktor.Chto waxa ay tahay iyo sida ay muhiimka u tahay marka aad dooranayso camera a digital.

factor dalagga - muddo in lagu daraa qodobada sawir qaamuuska bixitaanka iyo isticmaalka baahsan ee jiil cusub oo kaamirooyinka. Iyadoo horumarinta teknoolajiyada casriga cusub suuqa bilaabay in ay u muuqdaan kamaradaha iyo aad u badan SLR digital kharashka ah ay heli karaan nonprofessionals. iibsada noocan oo kale ah, marka lagu daro qiimaha, kala saaro haddii category kale, kaas oo camera ee la doortay - waa tirada megapixels. Iyada oo megapixels ay bartey baxay tirada, iyo soo bandhiga qeexin, waxa ay dhab ahaantii wali fahamsanahay in ka badan qalab wanaagsan. Si kastaba ha ahaatee, maadaama ay ka leexatay, tayada kale oo muhiim ah sifo soocayaa u dhexeeya camera a digital, factor dalagga. Ka hor inta aadan iibsan camera ah, oo taagan weli inaad ogaato waxa uu yahay.

amateurs dhowr ugu yaraan hal mar la yaabay sababta, haddii la gashto oo siku uu leeyahay qaab wareeg ah, qaab dhismeedka waqti isku mid ah ay qaadato qaab? Wax adag in jawaabta su'aashan jiro. Saadaalineysa image ah sawiro warbaahinta ayaa camera ah, optics siku fudud gooyo qayb "dheeraad ah" ee image ah, waxaa la siinayo qaab qaab. Waa arrin aad u sahlan tahay wax soo saarka ee filimada ka kooban taxane ah oo loox qaab, iyo samaynta sawirada, iyo Bixinta iyo kuwa kale ee is haysta, iyo wejiyo badan.

Sababo la isticmaalo muddada-dheer ee filimka images size ee ku yiilleen on filimka sii wadi in la isticmaalo sida size tixraac. mid ka mid No xitaa ma dhici karto in ay xitaa ka beddeli hadda, markii rasaas on film waa dhow wax la soo dhaafay. Maalmahan, la goysiga ah ee toogashada ah digital photo on furta oo gaar ah, taas oo la qallafsan la filimka barbar dhigi karaa.

Matrix, taas oo size of jir ah film baahisey, loo yaqaan loox-buuxa ah. Si kastaba ha ahaatee, inta badan kaamirooyinka SLR digital waa shax la size a badan oo yar yar. Dabcan on matrices sida waxaa soo jiitay kaliya aagga dhexe ee image ah in aad u hesho lahaa inuu shax-buuxa ah. Aragga, waxa ay u muuqataa sida haddii sawiro by jir gashto isagoo aad uga dheer focal dhererka a a.

Sidaa kacay dheer in qeexayaa "kordhay" dhererkiisu wuxuu focal, taas oo run ahaantii aan dhacaya, maxaa yeelay, halkan, sida tusaalahan aannu la lenses ku wareegsan, si fudud u gooyay qeyb ka mid ah barxadda dibadda ee ku yiilleen. In English erayga "dalagga" (dalagga) loo tarjumay sida "gooyay". Sidaa awgeed magaca muddada - factor dalagga, taas waxaa loola jeedaa in uu kiimikaysan kordhay dhererka focal. Waxaa si sax ah u tilmaamaya waqti isku mid ah, dhab ahaantii waxaa jira geeddi-socodka ah ee toogashada, sida in dareenka jirka, gashto camera dhererka focal ma beddelmin, laakiin beddelo oo keliya xagal of view.

Sidaas darteed, jir tirada 35 film timillimetrovoy 24x36 mm ayaa weli iyo tixraaca, oo hadda ku xiran iyo factor dalagga. Waayo, jir sida waa loo siman yahay si 1. Bilowga xilligii a, Nikon sawir digital caqli go'aansaday in ay suurto gal tahay in ay soo saaraan kamaradaha SLR digital la awood u leh inay u isticmaalaan la optics jir ah, kaas oo la sameeyey muddo tobannaan sano ah oo inta badan ku kici badan camera laftiisa.

Si kastaba ha ahaatee, la hirgelinta fikrad this waxaan leenahay dhibaato. Create a shidma dhererka buuxa caddaynaysa inay aad u qaali ah, oo kaliya aad u yar waxaa jiray dhibic lahayn.

Sidaas darteed of cilmibaarisyadii u shidma ayaa la aasaasay, taas oo ahayd dadab iyo jeer badh ka yar filimka timillimetrovoy ku jir 35. Sidaa darteed, shidma sida 1.5 ah - taasi waa arrin dalagga uu. Canon, kadis ah, ka dib helay xal ah, xataa si fiican. factor dalagga tii qolalkiisa noqday siman 1.6.

Si bartey kala duwan isaga ka, factor dalagga of Nikon a bilaabay wacaya DX, iyo dhererka buuxa FX shidma. Deji noocan oo kale ah waxay ku waddaa inay ka jiraan maanta. Waxa loo isticmaalaa shirkadaha kale oo badan, marka lagu daro Nikon.

Soo-saareyaasha of kamaradaha la factor dalagga, loo isticmaalo waxa meesha dareemayaal ay in ka badan kala bar hoos u dhacay. Tani waxay keentay in kaydka ee soo saaridda ee optics awood badan oo qaali ah. Soo-saareyaasha ayaa wuxuu bilaabay inuu soo saaro tiro mass of kamaradaha digital ayaa diyaar u ah tiro balaadhan oo ah sawir qaadayaasha.