Iilensi zeVarifocalzibonelela ngokuguquguquka kokulungisa ubude befocal, ukucinezela indawo, okanye ukwandisa intsimi yokujonga, ukuthintela ingxaki yokutshintsha iilensi rhoqo xa uthatha imifanekiso yelizwe ngaphandle. Xa uthatha imifanekiso yelizwe ngelensi ye-varifocal, ukwazi ezinye iindlela kunokuphucula ngempumelelo ingqiqo yobunzulu kunye nomoya kwiifoto zelizwe, okuphucula kakhulu ukubonakaliswa komfanekiso.
1.Khetha ubude obufanelekileyo bokugxila ngokweemfuno zakho zokudubula
Iilensi zeVarifocal zikuvumela ukuba ulungise uluhlu lokudubula ngokutshintsha ubude befocal. Okokuqala, kufuneka ukhethe ubude befocal obufanelekileyo ngokusekelwe kwisifundo sakho kunye neemfuno zokwakheka, uze ubhale kwaye ufote. Ubude befocal obude bunokugxininisa kwisifundo, ngelixa ubude befocal obufutshane bufanelekile ekufoteni iindawo ezinkulu.
Umzekelo, ukusebenzisa useto olune-engile ebanzi (njenge-24mm okanye emfutshane) kukuvumela ukuba ubambe okungakumbi kwendawo, ubonise ububanzi kunye nombono wendawo; ukusebenzisa useto lwe-telephoto (njenge-100mm nangaphezulu) kusondeza izinto ezikude, kucinezela indawo, kwaye kuqaqambisa iinkcukacha; ilensi ye-varifocal engama-24-105mm inika ukuguquguquka kwiimeko ezahlukeneyo zokudubula.
2.Ziingcali kwiindlela ezahlukeneyo zokuqamba
Eyona nto iphambili ekufoteni indawo kukufota. Xa ufota ngelensi ye-varifocal, akufuneki ushukume; ungayilungisa ngokukhawuleza ukufota ngokulungisa ubude be-focal. Nangona kunjalo, kusafuneka unikele ingqalelo kwimigaqo emininzi yokufota:
①Umthetho wokwakheka kwesithathu: Nokuba ubude befocal bunjani, ungavula imigca yegridi yekhamera uze ubeke umphezulu okanye umxholo kwisithathu sendlela enqumla ifreyimu. Beka into ephambili (njengokuphuma kwelanga, umthi omnye, okanye isikhephe esincinci) kwindawo edibana kuyo imigca yegridi ukuze uphephe ukuqina kokwakheka okuphakathi kwaye uphucule ibhalansi yomfanekiso.
②Ukusebenzisa izinto zangaphambili ngelensi ene-engile ebanzi: Nangona ilensi ene-engile ebanzi ikuvumela ukuba ubambe okungakumbi kwendawo, inokubangela umfanekiso ongathandekiyo. Ukuze uphephe oku, faka izinto zangaphambili kwisithathu esisezantsi sefreyimu, njengeematye, iintyatyambo, iindlela zomthi, okanye imifanekiso yabantu, ukuze ukhokele iliso lombukeli embindini nakwimvelaphi, ugqithise ingqiqo yobunzulu bendawo.
③Ukusebenzisa ilensi ye-telephoto ukwenza lula izinto ezidityanisiweyo: Xa indawo igcwele izinto, ilensi ye-telephoto ingasetyenziselwa ukukhetha eyona ndawo inomtsalane, njengomthi omnye, indlu encinci, okanye incochoyi yentaba ekhanyiswe ngumtha wokukhanya. Oku kucinezela indawo, kwenza kube lula ukwakheka, kwaye kukhuphe iinkcukacha.
Ubuchule bokwenza izinto bubalulekile xa ufota ngelensi ye-varifocal
3.Nika ingqalelo kwiindawo zokukhanya kunye nokukhanya
Ukufota ngendlela ye-landscape kudla ngokufuna ukuba zombini indawo engaphambili kunye nemvelaphi zigqalwe kakuhle, ngoko ke umngxuma omncinci udla ngokusetyenziswa ukufikelela kubunzulu obukhulu bentsimi, njenge-f/8, f/11, okanye encinci nangakumbi. Kubalulekile ukuqaphela ukuba xa usebenzisa ilensi ye-telephoto ukufota iinkcukacha ezikufutshane, ukusebenzisa umngxuma we-f/16 okanye omncinci kunokubangela umgangatho womfanekiso ophantsi ngenxa yeziphumo ze-diffraction. Ke ngoko, kufuneka kubekho ulungelelwano phakathi kobunzulu bentsimi kunye nomgangatho womfanekiso.
Kucetyiswa ukuba ulungise iiparameter zekhamera ezifana ne-ISO, isantya se-shutter, kunye nebhalansi emhlophe ngokweemeko zokukhanya ukuze kufezekiswe umgangatho womfanekiso ofanelekileyo. Ekukhanyeni okuqaqambileyo, inqanaba eliphezulu le-zoom lingasetyenziswa; ekukhanyeni okuphantsi, inqanaba le-zoom kufuneka lincitshiswe ukuze kuthintelwe ukufiphala komfanekiso kunye nengxolo eyandayo. Ukukhanya kwangaphambili okanye ukukhanya okusecaleni kunokubonisa ngcono ubunzulu kunye nobukhulu bezinto ezintathu. Ungazama ukudubula ngexesha leeyure zegolide zokusa okanye ukuhlwa, xa ukukhanya kuthambile kwaye imibala ityebile.
4.Sebenzisa i-tripod ukuze uzinzise imifanekiso yakho
I-tripod yenye yezona zinto zibalulekileyo zokufota indawo. Ukusebenzisa i-tripod kuthintela ngokufanelekileyo ukufiphala okubangelwa kukushukuma kwekhamera, ingakumbi kwiimeko zokukhanya okuphantsi okanye xa usebenzisa iilensi ze-telephoto. Ikwakuvumela ukuba usebenzise ngokuzithemba i-ISO ephantsi kunye nee-apertures ezincinci ngaphandle kokukhathazeka ngesantya esicothayo se-shutter. I-tripod ibalulekile, ingakumbi ngexesha leeyure zegolide (ukuphuma kwelanga kunye nokutshona kwelanga) xa ukukhanya kubuthathaka.
Ngaphezu koko, ukusebenzisa i-tripod kunceda abafoti bahlale bezinzile ngexesha lokudubula, ingakumbi xa bethatha iifoto ezidlula ixesha okanye bebona imifanekiso ixesha elide.
I-tripod iyadingeka ukuze kudutyulwe ngokuzinzileyo
5.Sebenzisa ii-lens hood ngokufanelekileyo
Iilensi zeVarifocalZithambekele kakhulu ekuveliseni ukugqabhuka kwelensi kunezinye iintlobo zeelensi; ngoko ke, i-lens hood efanelekileyo ibalulekile. Ingakumbi xa ujongana nokukhanya okanye ukhanyisa ecaleni, ukusebenzisa i-lens hood kunceda ukunciphisa ukugqabhuka kwaye kuphucula umahluko womfanekiso kunye nombala.
6.Nika ingqalelo emva kokucutshungulwa
Iilensi zeVarifocal, ingakumbi xa zisetyenziswa kwisiphelo se-wide-angle, zihlala zibonisa ukugqwetheka kunye nokubonakala kwe-barrel, okunokulungiswa kwi-post-processing. Ukudubula kwifomathi ye-RAW kuvumela uhlengahlengiso kwi-post-processing, njengokulola, ibhalansi emhlophe, kunye nokulungiswa kombala, okunokuphucula kakhulu umgangatho womfanekiso.
Ukudubula iilensi zeVarifocal kufuna ukusetyenziswa ngokufanelekileyo kwe-lens hood
7.Zama iindlela zokudubula ezinobuchule
Emva kokuba uqhelile iindlela ezisisiseko zokusebenzisa iilensi ze-telephoto, ungazama neendlela zokudubula ezinobuchule. Umzekelo, ukubethelela ukugxila: xa ufota ngelensi ebanzi kwaye ukufutshane kakhulu nomphambili, nokuba usebenzisa i-aperture encinci kusenokungavumeli zombini umphambili okufutshane kakhulu kunye nomphambili okude kakhulu ukuba ugxile.
Kule meko, ungagxila kwiindawo ezahlukeneyo kumgama owahlukeneyo uze uthathe iifoto ezininzi, uze usebenzise isoftware ukuze uzidibanise zibe ngumfanekiso omnye apho umphambili kunye nomva zibukhali khona.
Ngamafutshane, xa kufotwa imimandla ngeilensi ye-varifocal, abafoti banokusebenzisa ukuguquguquka kwayo kunye nokuguquguquka kwayo ukufota iindawo ezahlukeneyo zembonakalo yomhlaba. Ukwazi iindlela ezithile kuya kunceda ekuveliseni iifoto zembonakalo yomhlaba ezisemgangathweni wobungcali kunye nobugcisa.
Ixesha lokuthumela: Matshi-13-2026
