1.Yintoni i-engile ebanzi yelensi?

A ilensi ebanzi-engileyilensi enobude obucacileyo obufutshane. Iimpawu zayo eziphambili zibanzi zokujonga i-angle kunye nesiphumo esicacileyo sembono.

Iilensi ezinobubanzi obubanzi zisetyenziswa kakhulu ekufotweni komhlaba, ukufota uyilo, ukufota kwangaphakathi, kwaye xa ukudubula kufuneka kuthathe uluhlu olubanzi lwemifanekiso.

2.Yintoni ukusetyenziswa kwelensi ebanzi?

Iilensi zobude obubanzi ikakhulu zinolu setyenziso lulandelayo:

Gxininisa umphumo osondeleyo

Ngenxa yokuba i-lens ebanzi-engile inobunzulu obukhulu bentsimi, inokufikelela kumphumo oqinileyo wokuvala. Ukusebenzisa i-lens ebanzi ekudubuleni kunokwenza izinto zangaphambili zicace njengezinto ezikude, zandise izinto zangaphambili, kwaye zivelise ubunzulu obucacileyo besiphumo sentsimi, ukongeza ingqiqo yokubeka kunye ne-dimensionality emithathu kumfanekiso wonke.

Ilensi ebanzi

Yandisa isiphumo sembono

Xa usebenzisa iilensi ebanzi-engile, kuya kuba nefuthe elisondeleyo-elikhulu kunye nelikude, eliqhelekileyo elibizwa ngokuba yi "fisheye effect". Esi siphumo sombono singenza into efotweyo ibonakale isondele kumbukeli, inika abantu ingqiqo enamandla yendawo kunye ne-dimensionality-three-dimensionality. Ke ngoko, iilensi ezinobubanzi obubanzi zihlala zisetyenziswa kwiifoto zokwakha ukugqamisa ubungangamsha kunye nomfutho wesakhiwo.

Thatha imiboniso emikhulu

I-lens ebanzi-engile ingabonisa i-angle yokujonga ebanzi, ivumela abafoti ukuba babambe imifanekiso emininzi kwiifoto, njengeentaba ezikude, iilwandle, iipanorama zesixeko, njl. njl. imiboniso efuna ukuvakalisa ingqiqo yendawo enkulu.

Izicelo zokufota ezikhethekileyo

Iilensi ezinobude obubanzi zinokusetyenziselwa ukufota okukhethekileyo, njengokufota imizobo ekufutshane okanye amaxwebhu abalinganiswa, anokudala imiboniso ecacileyo neyinyani.

3.Umahluko phakathi kwelensi ebanzi-engile kunyeeqhelekileyoilensi

Iilensi ezibanzi kunye neelensi eziqhelekileyo ziintlobo zeelensi eziqhelekileyo efotweni. Ziyahluka kule miba ilandelayo:

Imifanekiso ethathwe nge-wide-angle-angle lens vs. imifanekiso ethathwe nge-lens eqhelekileyo

Uluhlu olubonakalayo

A ilensi ebanzi-engileinommandla omkhulu wokujonga kwaye inokubamba ngakumbi okungqongileyo kunye neenkcukacha. Oku kuluncedo kumhlaba wokudubula, iindawo zangaphakathi, okanye imiboniso apho imvelaphi ifuna ukugxininiswa.

Ngokuthelekisa, intsimi yokujonga iilensi eziqhelekileyo incinci kwaye ifaneleka ngakumbi ukudubula iinkcukacha zendawo, njengemifanekiso okanye izigcawu ezifuna ukugqamisa isihloko.

I-engile yomboniso

I-lens ebanzi-engile idubula ukusuka kwi-engile ebanzi kune-lens eqhelekileyo. Ilensi ebanzi-engile inokubamba uluhlu olubanzi lwemiboniso kwaye ibandakanye ngokupheleleyo indawo ebanzi kwisakhelo. Xa kuthelekiswa, iilensi eziqhelekileyo zineengile zokudubula ezimxinwa kwaye zifanelekile ukubamba izigcawu zomgama ophakathi.

Pisiphumo sombono

Kuba uluhlu lokudubula lwelensi ebanzi-engile inkulu, izinto ezisondele kakhulu zibonakala zikhulu ngelixa imvelaphi ibonakala incinci. Le mpembelelo yembono ibizwa ngokuba "yi-wide-angle distortion" kwaye ibangela ukuba izinto ezikummandla okufutshane zigqwese kwaye zibonakale zivelele.

Ngokwahlukileyo, impembelelo yembono yeelensi eziqhelekileyo zinokwenyani, kwaye umlinganiselo wokuvala kunye nemvelaphi isondele kwimeko yokuqwalasela ngokwenene.

4.Umahluko phakathi kwelensi ebanzi kunye nelensi ye-fisheye

Umahluko phakathi kwelensi ebanzi-engile kunye nelensi ye-fisheye ikakhulu ikwindawo yokujonga kunye nesiphumo sokuguqula:

Uluhlu olubonakalayo

A ilensi ebanzi-engileidla ngokuba nebala elibanzi lokujonga kunelensi eqhelekileyo, eyivumela ukuba ibambe ngaphezulu kwendawo. I-angle yayo yokujonga ngokuqhelekileyo iphakathi kwe-50 degrees kunye ne-85 degrees kwikhamera ye-35mm epheleleyo.

I-lens ye-fisheye inommandla obanzi kakhulu wokujonga kwaye inokubamba imiboniso engaphezulu kwe-180 degrees, okanye imifanekiso ye-panoramic. Ke ngoko, i-engile yayo yokujonga inokuba nkulu kakhulu kunelensi ebanzi-engile, edla ngokuba zii-degrees ezingama-180 kwikhamera enefreyim epheleleyo.

Imifanekiso ethathwe ngelensi ye-fisheye

Isiphumo sokuphazamiseka

Iilensi ezibanzi zivelisa ukugqwetheka okuncinci kwaye zinokubonisa ubungakanani bendawo eyinyani kunye neemilo zemigca. Iyanciphisa kancinane izinto ezikufutshane, kodwa isiphumo sokugqwesa ngokubanzi sincinci.

I-lens ye-fisheye inesiphumo esicacileyo sokuphazamiseka, esibonakaliswa ngokunyuka okucacileyo kwezinto ezikufutshane, ngelixa izinto ezikude ziyancipha, ezikhokelela kwindawo egobileyo okanye e-spherical, ebonisa umphumo owodwa we-fisheye.

Injongo kunye neemeko ezifanelekileyo

I-lens ene-angle ebanzi ifanelekile kwimiboniso yokudubula efuna indawo ebanzi yokujonga, njengemihlaba, i-architecture yedolophu, ukudubula kwangaphakathi, njl.

Ngokwahlukileyo, iilensi ze-fisheye zifanelekile ekudaleni imiphumo ebonakalayo ekhethekileyo kwaye inokuvelisa iziphumo eziphazamisayo ezinempembelelo kwiindawo ezithile, ezifana neendawo ezincinci zangaphakathi, iindawo zezemidlalo, okanye indalo yobugcisa.