Ungayikhetha Njani Ilensi Engaguqukiyo? Zeziphi Izinto Ekufuneka Ziqwalaselwe Xa Ukhetha?

A ilensi yokugxila esisigxinayilensi enobude obungaguqukiyo befocal, idla ngokuba ne-aperture enkulu kunye nomgangatho ophezulu we-optical. Ngoko ke, ungayikhetha njani ilensi engaguqukiyo? Zeziphi izinto ekufuneka uziqwalasele xa ukhetha ilensi engaguqukiyo?

Xa ukhetha ilensi yokugxila esisigxina, ezi zinto zilandelayo kufuneka ziqwalaselwe ngokupheleleyo:

Fubude be-ocal

Ubude befocal yenye yezinto zokuqala ekufuneka uziqwalasele xa ukhetha ilensi yokugxila esisigxina. Ubude befocal bumisela intsimi yokujonga ilensi, kwaye iilensi zokugxila ezisisigxina ezinobude obahlukeneyo befocal zifanelekile ukufota izigcawu ezahlukeneyo kunye nemixholo. Ubude obuqhelekileyo befocal buquka i-50mm, 85mm, 35mm, njl.

Ngokubanzi, i-50mm bubude obuphambili obusondeleyo kwindlela elijonge ngayo iliso lomntu, bufanelekile ukufota imifanekiso kunye neziganeko zobomi bemihla ngemihla; ubude obuphambili obuyi-85mm nangaphezulu bufanelekile kwimifanekiso ye-telephoto kunye nemifanekiso; ubude obuphambili obungaphantsi kwe-35mm bufanelekile ukufota imimandla ebanzi kunye neefoto zokusingqongileyo.

Iilensi ezinobude obahlukeneyo bokugxila zifanelekile ukufota izigcawu ezahlukeneyo

Imbobo

Ubungakanani bomngxuma buchaphazela ubungakanani bokukhanya okungena kwilensi kunye nokukwazi kwayo ukulawula ubunzulu bentsimi.

Ngokubanzi,ilensi yokugxila esisigxinaene-aperture enkulu (njenge-F1.4, F1.8) ingathatha iifoto ezicacileyo kwiindawo ezinokukhanya okuphantsi kwaye ivelise isiphumo esingcono sokufiphala kwemvelaphi, esifanelekileyo kwiifoto kunye neefoto ezikufutshane; ilensi ene-aperture encinci (njenge-F2.8, F4) izinzile ngakumbi kulawulo oluphezulu lwentsimi kunye nokusebenza kwezibane zangasemva, kwaye ifanelekile ekufotweni kweendawo kunye nezakhiwo ezinobunzulu obukhulu bentsimi.

Umgangatho welensi

Ukongeza ekugxileni kubude be-focal kunye ne-aperture, kufuneka uqwalasele nomgangatho welensi xa ukhetha ilensi egxile kwi-fixed-focus. Umgangatho welensi uquka iinkalo ezifana nomgangatho weglasi yelensi, i-lens coating, kunye ne-focus motor.

Iilensi zeglasi ezikumgangatho ophezulu kunye noyilo lweelensi zinokubonelela ngomgangatho ophezulu womfanekiso kunye nokuveliswa kwakhona kombala, ngelixa zithintela ukwenzeka kwezinto ezibonakalayo ezifana nokusasazeka kweelensi.

Umgangatho welensi uchaphazela umgangatho womfanekiso

Ubunzima kunye nomthamo

Iilensi ezigxile kwi-fixed focus zihlala zikhaphukhaphu kuneelensi ze-zoom, kodwa zikwanayo nobunzima kunye nomthamo othile. Ubunzima belensi buya kuchaphazela ngqo amava omsebenzisi.

Izixhobo ezisemgangathweni ophezulu kunye nobunzima obuphakathi kunokuphucula ukuqina kunye nokuphatheka kwelensi. Oku kunokuqinisekiswa ngokusekelwe kwimikhwa yakho yokusebenzisa kunye neemfuno zokudubula.

Ixabiso

Uluhlu lwamaxabisoiilensi ezigxile kwingqwalasela esisigxinaibanzi, ukusuka kwinqanaba lokuqala ukuya kwinqanaba lobungcali. Amaxabiso eelensi zeempawu ezahlukeneyo, iimodeli kunye neenkcukacha zahlukile kakhulu, zihlala ziqala kumakhulu ambalwa ukuya kumawaka ambalwa eeyuan. Kuya kufuneka ukhethe leyo ikufaneleyo ngokwebhajethi yakho.

Khetha ilensi ekufaneleyo ngokwebhajethi yakho

Ukongeza, xa ukhetha ilensi egxile kwingqwalasela esisigxina, kufuneka uqwalasele uhlobo lwekhamera oyisebenzisayo kunye nojongano lwelensi ukuqinisekisa ukuba ilensi iyahambelana nekhamera.

Iingcinga Zokugqibela:

Ukuba unomdla wokuthenga iintlobo ngeentlobo zeelensi zokujonga, ukuskena, iidrone, ikhaya elikrelekrele, okanye naluphi na olunye uhlobo lokusetyenziswa, sinazo izinto ozifunayo. Nxibelelana nathi namhlanje ukuze ufunde okungakumbi ngeelensi zethu kunye nezinye izixhobo.