I-lens variococal: inzuzo kunye nokungonakali

I-lens varifocal yile lense enexesha elide lokuguqula. Izixhobo zolu hlobo zisetyenzisiweyo kwiikhamera (zixhotyiswe kuphela ngamalensi alolu hlobo) kunye neekhamera zevidiyo (zinokubini zikunye ubude obugxilileyo kunye neyintlobo enye). I-lens variococal iququzelelwe yinkqubo enye ye-optical, iindidi zazo ezihanjiswe ngokuzenzekelayo ngokumalunga nomnye, ezibangele ukutshintshwa okutshintshileyo (ukulungiswa) kobude obude kwaye, ngokufanayo, isilinganisi somfanekiso kwibala lobude obude. Nangona kunjalo, ubukhali bezinto ekujoliswe kuzo kwaye ukuphasana kwesiqhelo akutshintshi.

I-lens variococal kunye nohlengahlengiso olusesikweni kukuvumela ukuba utshintshe ubude obujoliswe kabini, okwenza kube lula ukulungelelanisa ikota yekhamera kwisithunzi esiphezulu. Amadivaysi anokulawula okude angatshintsha ubude obude ukusuka kuma-6 ukuya kuma-50 amaxesha. Ezi iilensi zisetyenziselwa ukuhlolwa kwevidiyo.

Makhe sibone, kwaye zeziphi iingenelo kunye nokuphazamiseka kweso sixhobo, njenge-lens variococal.

Enye yeenzuzo zeso sixhobo kukuba ikuvumela ukuba ulungele i-angle yokujonga ngqo kwindawo, xa ufaka ikhamera yevidiyo. Kwaye, emva koko, emva kokufaka ikhamera, kunokwenzeka ukutshintsha ubude obude. Kulo mfuneko yokuba ezo zixhobo ziphela. Ngoku ke sijonge ukusilela.

Ikhamera ene-lens varifocal idinga ukulungiswa, okusoloko kulungelelaniso, kuba kuya kufuneka uphathe izixhobo ezongezelelweyo kunye nawe lonke ixesha (umlingo wokuhlola, ibhetri, njl.). Ukulungiswa kwe-lens kuyinkimbinkimbi, kuyimfuneko ukugqiba umlinganiselo ophezulu wobude obuphambili kunye nobukhali, kwaye inkqubo iya kwenziwa kunye nezihlomelo ezikhethekileyo (ezibiza kakhulu), ezifihla umfanekiso. Ngoko ke, umva wokuqala ungumlinganiselo onzima.

I-lens variococal ine-bandwidth eyingozi kakhulu (ukukhanya) ngokuthelekiswa nama-lens anesigxina. Oku kubonakala ngokukodwa kwizixhobo ezinobanzi obubanzi (5-50), umgangatho womfanekiso ngexesha lokuhlwaya kuya kuba yinto enyanyekayo. Ukuqokelela ukukhanya okuphantsi kweyona nto ihlelelekile.

Isithintelo sesithathu se-lens variococal kukuba ekugqibeleni igxotha kwiimpembelelo zamashishini okanye zomoya. Ngenxa yoko, emva kweenyanga ezimbalwa, kuya kufuneka kwenziwe utshintsho olongezelelweyo.

Isithintelo sesine yintengo yinjongo enjalo, ixabiso elibi kakhulu kunelo lugqibeleleyo.

Ukufingqa, masithi ama-variofocal lenses, naphezu kokusilela kwabo, ayathandwa kakhulu kwaye ayimfuneko kakhulu kunezinto ezichanekileyo. Nangona kunjalo, kubalulekile ukuba uqaphele ukuba ukuhlaziywa kweli nqaku kuchaphazela kuphela iikhamera ezijoliswe ekubonweni kwevidiyo, kuba ziphela kuphela ezikhethwa zizilwanyana ezizimeleyo okanye ezizimeleyo. Kwiikhamera kunye neekhamera, i-optics kuphela eyenziwa ngokwezifiso.