Zeziphi ubude obuqhelekileyo beelensi zemizi-mveliso? Zeziphi izinto ekufuneka ziqwalaselwe xa ukhetha imodeli?

1,Zeziphi ubude obuqhelekileyo ezisetyenziselwa ukugxininiswa kweelensi zokusebenza?

Zininzi ubude obusetyenzisiweyoIilensi zemizi-mveliso. Ngokubanzi, ubude bobude obuxhaphakileyo bukhetheke ngokweemfuno zokudubula. Nantsi imizekelo eqhelekileyo yobude obujolise kuyo:

A.Ubude obu-4mm

Iilensi zobude obugxile kakhulu zilungele ukudubula iindawo ezinkulu kunye nomgama osondeleyo, ezinje ngoomasifundisane bomzi mveliso, iindawo zokugcina izinto, njl.

B.I-6mm igxile kubude

Xa kuthelekiswa nelensi ye-4mm ye-4mm, le yilensi ye-lens egxile kakhulu, ilungele izihlandlo ezikhulu ezincinci. Izixhobo ezininzi zemizi-mveliso, ezinjengezixhobo ezinzima zomatshini, imigca emikhulu yemveliso, njl., Zinokusebenzisa i-6mm lens.

C.I-8mm ubude

Iilensi ze-8mm zinokufaka indawo enkulu, enjengomgca omkhulu wemveliso, indawo yokugcina izinto, njl. Njl. Kufuneka iqatshelwe ukuba iilensi zolu bude zinokubangela imifanekiso enkulu.

I-lens yemveliso yokudubula imigangatho emikhulu

D.I-12mm igxile kubude

Xa kuthelekiswa ne-8mm yobude be-8mm egxile kakhulu, ilensi ye-12mm inenqanaba elibanzi lokudubula kwaye lifaneleke ukusetyenziswa kwizinto ezikhulu.

E.16mm ubude

I-16mm ye-16mm ekugxilwe kuzo ziilensi eziphakathi kakhulu zelensi, ilungele ukudubula kwimigama ephakathi. Ingasetyenziselwa ukudubula iinxalenye ezithile zomzi-mveliso, njengoomatshini, izixhobo, njl.

F.I-25mm yobude

Iilensi ezingama-25mm yilensi ye-Telephoto kuphela, elungele ukudubula komgama omde, njengokudubula imbono yepayisi yomzi-mveliso.

G.35mm, i-50mm, i-75m kunye nezinye ubude

Iilensi ezinje nge-35mm, i-50mm, kunye ne-75mm ubude beelensi ezinokuthi zisetyenziselwe ukwenza amaziko emizi-mveliso, okanye i-macro (i-macro (i-Macro (i-Macro (i-Macro (i-macro

2,Zeziphi izinto ezifanele ziqwalaselwe xa ukhetha iilensi zemizi-mveliso?

Xa ukhetha iI-lens yemveliso, Ezi zinto zilandelayo kufuneka ziqwalaselwe:

A.Iimfuno zesicelo

Ngaphambi kokukhetha ilensi, chaza ukuba loluphi uhlobo lwe-lens yakho ifunwa. Ngenxa yokuba izicelo ezahlukeneyo zifuna iintlobo ezahlukeneyo zeparamitha ezinje nge-aperture, ubude obujolise kwimbonakalo.

Umzekelo, ngaba ufuna ilensi ebanzi okanye i-telephoto lens? Ngaba ufuna ukugxila ngokusisigxina okanye i-zoom amandla? Ezi zimiselwa ngokubhekisele kwiimfuno zesicelo.

Khetha iilensi zemizi-mveliso ngokusekwe kwiimfuno zesicelo

B.Iiparamitha ze-Optical

I-Aperture, ubude obujolise kuyo kunye nendawo yokujonga yonke imigqaliselo ibalulekile kwilensi. I-aperture imisela inani lokukhanya okuthethwa yilensi, kwaye i-aperture enkulu inokufumana umgangatho womfanekiso ongcono kwiimeko eziphantsi; Ubude obujolise kubude kunye nendawo yokujonga ichonge indawo yokujonga kunye nokukhuliswa komfanekiso.

C.Umfanekisori-Edoling

Xa ukhetha ilensi, kuya kufuneka ukhethe ilensi efanelekileyo esekwe kwiimfuno zokusombulula imifanekiso. Isigqibo selensi kufuneka sihambelane neephikseli zekhamera ukuqinisekisa imifanekiso ephezulu.

D.Umgangatho wokukhanya welensi

Umgangatho wokukhanya weelensi uthatha ngqo ukucaca kunye nokugqwetha umfanekiso. Ke ngoko, xa ukhetha ilensi, kufuneka uqwalasele ilensi kwincoko ethembekileyo yokuqinisekisa ukusebenza kakuhle.

E.Ukulungelelaniswa okusingqongileyo

Xa ukhetha ilensi, kuya kufuneka uqwalasele iimeko zokusingqongileyo kwesicelo sakho. Umzekelo, ukuba imeko yesicelo inezinto ezinje ngothuli, ukufuma, okanye ubushushu obuphezulu, kuya kufuneka ukhethe ilensi yi-larroof, i-proof, kunye neqondo lobushushu eliphezulu.

F.Uhlahlo-lwabiwo mali

Uhlahlo-lwabiwo mali yenye yezona zinto zibalulekileyo ekufuneka uziqwalasele xa ukhetha ilensi. Iimpawu ezahlukeneyo kunye neemodeli zeelensi zinamaxabiso ahlukeneyo, ke qiniseka ukuba ukhetha ilensi efanelekileyo ngokobuhlahlo.

Iingcinga zokugqibela:

I-Chuangan iqhube uyilo lwangaphambili kunye nemveliso yeIilensi zemizi-mveliso, esetyenziswa kuwo onke amabakala kwizicelo zeshishini. Ukuba unomdla okanye unezidingo zeelensi zemizi-mveliso, nceda unxibelelane nathi ngokukhawuleza.