Njengoko sonke sisazi, iikhamera zidlala indima ebaluleke kakhulu kwicandelo lokubeka esweni ukhuseleko. Ngokubanzi, iikhamera zifakwa ezindleleni zasezidolophini, kwiindawo zokuthenga ezinkulu nakwezinye iindawo zikawonke-wonke, kwiikhampasi, kwiinkampani nakwezinye iindawo. Azidlali nje indima yokubeka esweni, kodwa zikwaluhlobo lwezixhobo zokhuseleko kwaye ngamanye amaxesha zikwangumthombo wezikhokelo ezibalulekileyo.

Kunokuthiwa iikhamera zokujonga ukhuseleko ziye zaba yinxalenye ebalulekileyo yomsebenzi nobomi kuluntu lwanamhlanje.

Njengesixhobo esibalulekileyo senkqubo yokubeka esweni ukhuseleko,ilensi yokujonga ukhuselekoinokufumana kwaye irekhode umfanekiso wevidiyo wendawo ethile okanye indawo ngexesha langempela. Ukongeza ekujongeni ngexesha langempela, iilensi zokujonga ukhuseleko zikwanazo neendawo zokugcina ividiyo, ukufikelela kude kunye neminye imisebenzi, esetyenziswa kakhulu kwiindawo ezahlukeneyo zokhuseleko.

Iilensi zokujonga ukhuseleko

1,Eyona nto iphambili eyenziwe yilensi yokujonga ukhuseleko

1)Fubude be-ocal

Ubude befocal lens yokujonga ukhuseleko bumisela ubungakanani kunye nokucaca kwento ekujoliswe kuyo emfanekisweni. Ubude befocal obufutshane bufanelekile ukujonga uluhlu olubanzi kwaye umbono okude mncinci; ubude befocal obude bufanelekile ukujonga umgama omde kwaye bunokwandisa ifocal.

2)Ilensi

Njengenxalenye ebalulekileyo yelensi yokujonga ukhuseleko, ilensi isetyenziswa kakhulu ukulawula intsimi ye-engile yokujonga kunye nobude be-focal ukuze ibambe izinto ekujoliswe kuzo kumgama owahlukeneyo kunye nobubanzi. Ukukhethwa kwelensi kufuneka kumiselwe ngokusekelwe kwiimfuno ezithile. Umzekelo, iilensi ezibanzi zisetyenziswa kakhulu ukujonga iindawo ezinkulu, ngelixa iilensi ze-telephoto zisetyenziselwa ukujonga iithagethi ezikude.

3)Isivamvo somfanekiso

Isenzi somfanekiso yenye yezona zinto ziphambili zeilensi yokujonga ukhuseleko. Linoxanduva lokuguqula imiqondiso ye-optical ibe yimiqondiso yombane yokuthatha imifanekiso. Kukho iintlobo ezimbini eziqhelekileyo zezinzwa zemifanekiso: i-CCD kunye ne-CMOS. Okwangoku, i-CMOS ithatha indawo elawulayo kancinci kancinci.

4)Imbobo

Ukuvulwa kwelensi yokujonga ukhuseleko kusetyenziselwa ukulungisa ubungakanani bokukhanya okungena kwilensi nokulawula ukukhanya nobunzulu bomfanekiso. Ukuvula i-aperture ngokubanzi kunokunyusa ubungakanani bokukhanya okungena, okufanelekileyo ukujonga kwiindawo ezinokukhanya okuphantsi, ngelixa ukuvala i-aperture kunokufikelela kubunzulu obukhulu bentsimi.

5)Tindlela yokuvuthela

Ezinye iilensi zokujonga ukhuseleko zinendlela ejikelezayo yokujika nokujikeleza ngokuthe tye nangokuthe nkqo. Oku kunokugubungela uluhlu olubanzi lokujonga kwaye kwandise umbono kunye nokuguquguquka kokujonga.

Ilensi yokujonga ukhuseleko

2,Uyilo lwe-Optical lweelensi zokujonga ukhuseleko

Uyilo lwe-optical lweiilensi zokujonga ukhuselekobubuchwepheshe obubaluleke kakhulu, obuquka ubude be-focal, intsimi yokujonga, izinto zelensi kunye nezinto zelensi zelensi.

1)Fubude be-ocal

Kwiilensi zokujonga ukhuseleko, ubude befocal yiparameter ebalulekileyo. Ukukhetha ubude befocal kumisela ukuba into inokubanjwa kude kangakanani yilensi. Ngokubanzi, ubude befocal obukhulu bunokufezekisa ukulandelela nokujonga izinto ezikude, ngelixa ubude befocal obuncinci bufanelekile ekudubuleni nge-wide-engile kwaye bunokugubungela intsimi enkulu yombono.

2)Umbono wenkundla

Intsimi yokujonga nayo yenye yezona parameter zibalulekileyo ekufuneka ziqwalaselwe kuyilo lweelensi zokujonga ukhuseleko. Intsimi yokujonga imisela uluhlu oluthe tye noluthe nkqo olunokuthi ilensi ilubambe.

Ngokubanzi, iilensi zokujonga ukhuseleko kufuneka zibe nombono omkhulu, zikwazi ukugubungela indawo ebanzi, kwaye zibonelele ngombono obanzi ngakumbi wokujonga ukhuseleko.

3)Lizinto ze-ens

Ukuhlanganiswa kweelensi kubandakanya iilensi ezininzi, kwaye imisebenzi eyahlukeneyo kunye neziphumo zokukhanya zinokufezekiswa ngokulungisa imo kunye nendawo yeelensi. Uyilo lwezixhobo zeelensi kufuneka luqwalasele izinto ezifana nomgangatho womfanekiso, ukuziqhelanisa neendawo ezahlukeneyo zokukhanya, kunye nokuchasana nokuphazamiseka okunokwenzeka kwindalo esingqongileyo.

4)Ilensimiiteriyali

Izinto ezisetyenziswa yilensi nazo zezinye zezinto ezibalulekileyo ekufuneka ziqwalaselwe kuyilo lwe-optical.Iilensi zokujonga ukhuselekozifuna ukusetyenziswa kwezinto ezisemgangathweni ophezulu, iimpawu zokukhanya ezibalaseleyo kunye nokuqina. Izinto eziqhelekileyo ziquka iglasi kunye neplastiki.

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.