Iyini ilensi yokugxila engaguquki?

Njengoba igama lisho,ilensi yokugxila egxilileuhlobo lwelensi yezithombe enobude obuqondile obungaguquki, obungenakulungiswa futhi obuhambisana nelensi yokusondeza.

Uma sikhuluma ngokujwayelekile, amalensi okugxila aqinile ngokuvamile anombobo omkhulu kanye nekhwalithi ephezulu yokukhanya, okwenza afaneleke ukuthatha izithombe ezisezingeni eliphezulu.

Umehluko phakathi kwamalensi okugxila agxilile namalensi okusondeza

Ilensi yokugxila engaguquki kanye nelensi yokusondeza yizinhlobo ezimbili ezivamile zamalensi ekhamera, futhi umehluko wazo omkhulu usekutheni ubude bokugxila bungalungiseka yini. Zinezinzuzo zazo uma zisetshenziswa ezimweni ezahlukene zohlelo lokusebenza.

Isibonelo, ilensi yokugxila engaguquki ifanele ukusetshenziswa ezimweni zokukhanya okwanele, ukuphishekela ikhwalithi ephezulu yesithombe, kanye nezindikimba zokuthwebula ezizinzile, kuyilapho ilensi yokukhulisa izithombe ifaneleka kakhulu ezigcawini ezidinga ukusondeza okuguquguquka, njengezithombe zezemidlalo.

Ilensi yokugxila egxilile

Ubude be-focal

Ubude be-focal lens yokugxila egxilile buzinzile, njengo-50mm, 85mm, njll., futhi abukwazi ukulungiswa. Ilensi yokusondeza ingalungisa ubude be-focal ngokujikeleza noma ukusunduza nokudonsa umgqomo welensi, okuvumela ukukhetha okuguquguqukayo phakathi kwe-wide-angle kanye ne-telephoto.

Oukusebenza kwe-ptical

Ngokuvamile,ilensi yokugxila egxilileinekhwalithi engcono yokukhanya kunelensi ye-zoom ngoba ukwakheka kwayo kulula futhi ayidingi ukucatshangelwa kokunyakaza kwelensi noma izakhiwo eziyinkimbinkimbi zokukhanya. Uma kuqhathaniswa, amalensi okugxila aqinile ngokuvamile ane-aperture ephezulu (enenani elincane le-F), elinganikeza ikhwalithi engcono yesithombe, ukukhanya okukhulu, kanye nemiphumela engcono yokufiphaza ingemuva.

Kodwa manje ngentuthuko yobuchwepheshe, amanye amalensi okusondeza aphezulu angafinyelela ezingeni lamalensi okugxila agxilile maqondana nokusebenza kokukhanya.

Isisindo kanye nomthamo

Isakhiwo selensi yokugxila engaguquki silula, ngokuvamile sincane futhi silula ngobukhulu. Isakhiwo selensi yokukhulisa siyinkimbinkimbi, siqukethe amalensi amaningi, ngakho-ke ngokuvamile sinzima futhi sikhulu, okungase kungabi lula kakhulu kubathwebuli bezithombe ukusisebenzisa.

Indlela yokudubula

Ilensi yokugxila egxilileAma-s afanele ukuthwebula izigcawu noma izihloko ezithile, njengoba ubude bokugxila bungenakulungiswa, futhi amalensi afanele kudingeka akhethwe ngokusekelwe ebangeni lokudubula.

Ilensi yokusondeza iguquguquka kancane futhi ingalungisa ubude be-focal ngokwezidingo zokudubula ngaphandle kokushintsha indawo yokudubula. Ifanele izigcawu ezidinga izinguquko eziguquguqukayo ebangeni lokudubula kanye ne-engeli.