Yintoni ilensi yokugxila esisigxina?

Njengoko igama lisitsho,ilensi yokugxila esisigxinaluhlobo lwelensi yokufota enobude obungaguqukiyo, obungenakulungiswa kwaye buhambelana nelensi yokusondeza.

Xa sithetha ngokuthelekisa, iilensi ezigxile kwi-fixed focus zihlala zine-aperture enkulu kunye nomgangatho ophezulu we-optical, nto leyo ezenza zifaneleke ukufota iifoto ezikumgangatho ophezulu.

Umahluko phakathi kweelensi ezigxile kwi-fixed focus kunye neelensi ze-zoom

Ilensi yokugxila engaguqukiyo kunye nelensi yokusondeza ziintlobo ezimbini eziqhelekileyo zeelensi zekhamera, kwaye umahluko omkhulu ulele ekubeni ubude befocal buyalungiseka na. Zineengenelo zazo xa zisetyenziswa kwiimeko ezahlukeneyo zokusetyenziswa.

Umzekelo, ilensi yokugxila esisigxina ifanelekile ukusetyenziswa kwiimeko zokukhanya okwaneleyo, ukufuna umgangatho ophezulu womfanekiso, kunye nemixholo yokudubula ezinzileyo, ngelixa ilensi yokujonga imifanekiso ifanelekile ngakumbi kwiindawo ezifuna ukusondeza okuguquguqukayo, njengokufota kwezemidlalo.

Ilensi yokugxila esisigxina

Ubude befokhalthi

Ubude befocal lens egxile kwi-fixed focus buzinzile, njenge-50mm, 85mm, njl.njl., kwaye abunakulungiswa. Ilensi ye-zoom ingalungisa ubude befocal ngokujikeleza okanye ukutyhala nokutsala ibharele yelensi, okuvumela ukhetho oluguquguqukayo phakathi kwe-wide-engile kunye ne-telephoto.

Oukusebenza kwe-ptical

Ngokubanzi,ilensi yokugxila esisigxinainomgangatho ongcono wokukhanya kunelensi ye-zoom kuba uyilo lwayo lulula kwaye aludingi kuqwalaselwa intshukumo yelensi okanye izakhiwo ezintsonkothileyo zokukhanya. Ngokuthe ngqo, iilensi ezigxile kwi-fixed focus zihlala zine-aperture ephezulu (enexabiso eliphantsi le-F), enokubonelela ngomgangatho ongcono womfanekiso, ukukhanya okukhulu, kunye nemiphumo engcono yokufiphalisa imvelaphi.

Kodwa ngoku ngenxa yophuhliso lwetekhnoloji, ezinye iilensi ze-zoom eziphezulu zinokufikelela kwinqanaba leelensi ezigxile kwingqwalasela esisigxina ngokubhekiselele ekusebenzeni kwe-optical.

Ubunzima kunye nomthamo

Ulwakhiwo lwelensi egxile kwingqwalasela esisigxina lulula, ngokubanzi luncinci kwaye lukhaphukhaphu ngobukhulu. Ulwakhiwo lwelensi ye-zoom luyinkimbinkimbi, luquka iilensi ezininzi, ngoko ke luhlala lunzima kwaye lukhulu, nto leyo esenokungabi lula kakhulu kubafoti ukuba bayisebenzise.

Indlela yokudubula

Ilensi yokugxila ezinzileyoIilensi zifanelekile ukufota izigcawu okanye izinto ezithile, njengoko ubude befocal bungenakulungiswa, kwaye iilensi ezifanelekileyo kufuneka zikhethwe ngokusekelwe kumgama wokudubula.

Ilensi yokusondeza iguquguquka kakhulu kwaye ingayilungisa ubude befocal ngokweemfuno zokudubula ngaphandle kokutshintsha indawo yokudubula. Ifanelekile kwiindawo ezifuna utshintsho oluguquguqukayo kumgama wokudubula kunye ne-engile.