Iilensi zemizi-mveliso zisetyenziswa kakhulu kwicandelo lemizi-mveliso kwaye zezinye zeentlobo zeelensi eziqhelekileyo. Iintlobo ezahlukeneyo zeelensi zemizi-mveliso zinokukhethwa ngokweemfuno ezahlukeneyo kunye neemeko zokusetyenziswa.

Indlela yokwahlulahlula iilensi zemizi-mveliso?

Iilensi zemizi-mvelisozinokwahlulwa zibe ziintlobo ezahlukeneyo ngokwemigangatho eyahlukeneyo yokuhlela. Iindlela eziqhelekileyo zokuhlela zezi zilandelayo:

Uhlulo olusekelwe kwisakhiwo selensi. 

Ngokwesakhiwo selensi yelensi, iilensi zemizi-mveliso zingahlulwa zibe ziilensi ezizimeleyo (ezifana neelensi ezingqukuva, iilensi ezingqukuva), iilensi ezidityanisiweyo (ezifana neelensi ze-biconvex, iilensi ze-biconcave), amaqela elensi ezidityanisiweyo, njl.njl.

Ihlelwe ngokwe-focal length.

Ihlelwe ngokwee-focal length zelensi,iilensi zoshishinoziquka iilensi ezibanzi, iilensi eziqhelekileyo, iilensi ze-telephoto, njl.

Ihlelwe ngokweendawo ezisetyenziswayo.

Iilensi zemizi-mveliso zihlelwe ngokweenkalo zesicelo selensi, zinokwahlulwa zibe ziilensi zokubona komatshini, iilensi zokulinganisa imizi-mveliso, iilensi zokujonga imifanekiso yezonyango, iilensi zemicroscope, njl.njl.

Ihlelwe ngokwendlela yohlobo lwe-interface.

Zihlelwe ngokwendlela yojongano lwelensi, iilensi zemizi-mveliso ziquka i-C-mount, i-CS-mount, i-F-mount, i-M12-mount kunye nezinye iintlobo.

Uhlulo olusekelwe kwiiparameter ze-optical.

Iilensi zahlulwe ngokweeparamitha zazo zokukhanya, kubandakanya ubude be-focal, i-aperture, i-field of view, i-distortion, i-astigmatism, i-resolution, njl.njl.

Ilensi yemizi-mveliso

Yintoni umahluko phakathi kweelensi zemizi-mveliso kunye neelensi eziqhelekileyo?

Ngenxa yotshintsho kwimfuno kunye nokuqhubela phambili kwetekhnoloji, umahluko kwiimpawu zokusebenza phakathiiilensi zoshishinokunye neelensi zabathengi ngokubanzi ziyanyamalala kancinci kancinci, kwaye ezinye iilensi zemizi-mveliso kunye neelensi ngokubanzi nazo zingasetyenziswa ngokutshintshana. Ngokubanzi, umahluko phakathi kweelensi zemizi-mveliso kunye neelensi ngokubanzi ngolu hlobo lulandelayo:

Iipropati ezahlukeneyo zokukhanya

Xa kuthelekiswa neelensi eziqhelekileyo, iilensi zemizi-mveliso zinemfuno ephezulu yomgangatho womfanekiso kunye nokuchaneka. Ngokuqhelekileyo zinokuphambuka okuphantsi, ukuphazamiseka kwe-chromatic kunye nokuncitshiswa kokukhanya, okuqinisekisa ukuchaneka komfanekiso kunye nokuthembeka. Iilensi eziqhelekileyo zinokuba nokuphazamiseka okuthile kwiiparameter ezithile, ikakhulu zilandela iziphumo zobugcisa ezingcono kunye namava omsebenzisi.

Iinjongo ezahlukeneyo zoyilo

Iilensi zemizi-mvelisozenzelwe ikakhulu ukusetyenziswa kwemizi-mveliso efana nombono womatshini, ulawulo oluzenzekelayo, ukulinganisa kunye nohlalutyo. Zenzelwe ukuhlangabezana neemfuno zokuchaneka okuphezulu, isisombululo esiphezulu kunye nozinzo. Iilensi eziqhelekileyo zenzelwe ikakhulu ukufota, ukusetyenziswa kweefilimu kunye nomabonwakude, kwaye zinika ingqalelo engakumbi ekusebenzeni kwemifanekiso kunye nemiphumo yobugcisa.

Iindlela ezahlukeneyo zokugxila

Iilensi eziqhelekileyo zihlala zinomsebenzi we-autofocus, onokuzilungisa ngokuzenzekelayo ingqwalasela ngokwendawo kunye nesihloko. Iilensi zemizi-mveliso zihlala zisebenzisa ingqwalasela ngesandla, kwaye abasebenzisi kufuneka balungise ubude be-focal kunye ne-focal ngesandla ukuze bavumelane neemeko ezahlukeneyo zesicelo semizi-mveliso kunye neemfuno.

Umahluko ekuqineni nasekuzivumelaniseni neemeko

Iilensi zemizi-mvelisokufuneka zikwazi ukumelana neendawo zoshishino ezinzima, ezifana namaqondo obushushu aphezulu naphantsi, ukufuma kunye nokungcangcazela, ngoko ke zihlala zifuna ukuqina okuqinileyo kunye nokuguquguquka. Xa kuthelekiswa, iilensi eziqhelekileyo zenzelwe ukuba zibe lula, zithwalwe kwaye kube lula ukuziphatha, nto leyo eyenza kube lula ukuzisebenzisa kwiindawo eziqhelekileyo.

Ukufunda Okunxulumeneyo:Yintoni Ilensi Yemizi-mveliso? Zithini Iinkalo Zokusetyenziswa Kweelensi Zemizi-mveliso?