1.Iyini ilensi ye-engeli ebanzi?

A i-lens ene-wide angleiyilensi enobude bokugxila obufushane uma kuqhathaniswa. Izici zayo eziyinhloko ziyi-angle yokubuka ebanzi kanye nomphumela osobala wokubuka.

Amalensi ane-engeli ebanzi asetshenziswa kakhulu ezithombeni zezwe, izithombe zezakhiwo, izithombe zasendlini, futhi lapho ukudubula kudinga ukuthwebula izigcawu eziningi.

2.Iyini ukusetshenziswa kwelensi ye-engeli ebanzi?

Amalensi ane-engeli ebanzi ngokuyinhloko anokusetshenziswa okulandelayo:

Gcizelela umphumela wokuvala

Ngenxa yokuthi ilensi ye-engeli ebanzi inokujula kwenkambu enkulu, ingafinyelela umphumela oqinile wokuvala. Ukusebenzisa ilensi ye-engeli ebanzi ukudubula kungenza izinto ezingaphambili zicace njengezinto ezikude, kukhulise izinto ezingaphambili, futhi kukhiqize ukujula okusobala komphumela wenkundla, kwengeze umuzwa wokwendlaleka kanye nobukhulu obuthathu kuso sonke isithombe.

I-lens ene-engeli ebanzi

Thuthukisa umphumela wokubuka

Uma usebenzisa i-ai-lens ene-wide angle, kuzoba nomphumela oseduze-omkhulu futhi omncane kakhulu, owaziwa ngokuthi "umphumela we-fisheye". Lo mphumela wokubuka ungenza into ethwetshuliwe ibonakale iseduze nomuntu obukele, inikeze abantu umuzwa oqinile wendawo kanye nobukhulu obuthathu. Ngakho-ke, ama-lens ane-angle ebanzi avame ukusetshenziswa ezithombeni zezakhiwo ukugqamisa ubukhosi nomfutho wesakhiwo.

Thwebula izigcawu ezinkulu

Ilensi yomugqa obanzi ingethula i-engeli yokubuka ebanzi, ivumele abathwebuli bezithombe ukuthi bathwebule izigcawu eziningi ezithombeni, njengezintaba ezikude, ulwandle, ama-panorama edolobha, njll. Ingenza isithombe sibe nezinhlangothi ezintathu futhi sivuleke, futhi sifanele ukushuthwa. izigcawu ezidinga ukuveza umuzwa wesikhala esikhulu.

Izinhlelo zokusebenza ezikhethekile zokuthatha izithombe

Amalensi ane-engeli ebanzi angaphinde asetshenziselwe ukuthwebula izithombe okukhethekile, njengokuthwebula izithombe eziseduze noma amadokhumentari abalingiswa, okungadala izigcawu ezicacile nezingokoqobo.

3.Umehluko phakathi kwelensi ye-engeli ebanzi neevamileilensi

Amalensi ane-engeli ebanzi namalensi avamile ayizinhlobo zamalensi avamile ezithombeni. Ayahluka ezicini ezilandelayo:

Izithombe ezithathwe ngelensi ebanzi uma kuqhathaniswa nezithombe ezithathwe ngelensi evamile

Ibanga elibukekayo

A i-lens ene-wide angleinomkhakha wokubuka omkhulu futhi ingathwebula indawo ezungezile nemininingwane eyengeziwe. Lokhu kuwusizo ekuthwebuleni indawo, izindawo zangaphakathi, noma izigcawu lapho ingemuva lidinga ukugcizelelwa khona.

Uma kuqhathaniswa, inkambu yokubuka yamalensi avamile incane uma kuqhathaniswa futhi ifaneleka kakhulu ukudubula imininingwane yendawo, efana nezithombe noma izigcawu ezidinga ukugqamisa isihloko.

I-engeli yokuqopha

Ilensi ene-engeli ebanzi idubula isuka nge-engeli ebanzi kunelensi evamile. Ilensi ye-engeli ebanzi ingathwebula uhla olubanzi lwezigcawu futhi ihlanganise ngokugcwele isigcawu esibanzi ohlakeni. Uma kuqhathaniswa, amalensi avamile ane-engeli encane yokudubula futhi afanele ukuthwebula izigcawu zebanga eliphakathi.

Pumphumela wokubuka

Njengoba ububanzi bokuthwebula belensi ye-engeli ebanzi bukhulu, izinto ezisondelene zibonakala zizikhudlwana kuyilapho ingemuva libonakala lincane. Lo mphumela wokubuka ubizwa ngokuthi “i-wide-angle distortion” futhi kubangela ukuthi izinto ezisesigabeni esiseduze ziwohloke futhi zibonakale zigqama kakhulu.

Ngokuphambene, umphumela wokubuka wamalensi avamile ungokoqobo kakhulu, futhi isilinganiso sokuvala eduze nengemuva siseduze nesimo sangempela sokubuka.

4.Umehluko phakathi kwelensi ye-engeli ebanzi nelensi yefisheye

Umehluko phakathi kwelensi ye-engeli ebanzi nelensi ye-fisheye ikakhulukazi usenkundleni yokubuka nomthelela wokuhlanekezela:

Ibanga elibukekayo

A i-lens ene-wide anglengokuvamile inenkundla yokubuka ebanzi kunelensi evamile, eyivumela ukuthi ithwebule indawo yesehlakalo. I-engeli yayo yokubuka ngokuvamile iphakathi kwamadigri angu-50 no-85 kukhamera yozimele ogcwele ongu-35mm.

Ilensi ye-fisheye inombono obanzi kakhulu futhi ingathwebula izigcawu ezingaphezu kwama-degree angu-180, noma ngisho nezithombe ze-panoramic. Ngakho-ke, i-engeli yayo yokubuka ingaba nkulu kakhulu kunelensi ye-engeli ebanzi, ngokuvamile engu-180 degrees kukhamera yohlaka olugcwele.

Izithombe ezithathwe ngelensi ye-fisheye

Umphumela wokuhlanekezela

Amalensi ane-engeli ebanzi akhiqiza ukuhlanekezela okuncane futhi angaveza izilinganiso zesigcawu esingokoqobo kanye nomumo wemigqa. Inweba kancane izinto eziseduze, kodwa umphumela wokuhlanekezela uwonke mncane uma kuqhathaniswa.

Ilensi ye-fisheye inomphumela osobala wokuhlanekezela, obonakala ngokunwebeka okusobala kwezinto eziseduze, kuyilapho izinto ezikude zishwabana, okuholela esigcawini esigobile noma esiyindilinga, okubonisa umphumela we-fisheye oyingqayizivele.

Inhloso nezimo ezisebenzayo

Ilensi ye-engeli ebanzi ifanele izigcawu zokudubula ezidinga indawo ebanzi yokubuka, efana nezindawo, izakhiwo zasemadolobheni, ukudubula kwangaphakathi, njll. Ivamise ukusetshenziselwa ukuthwebula izindawo ezinkulu zemvelo kuyilapho ugcina umbono kanye nokuba ngokoqobo.

Ngokuphambene, amalensi e-fisheye afaneleka ekudaleni imithelela ehlukile yokubuka futhi angaveza imiphumela enomthelela ehlanekezela ezigcawini ezithile, njengezikhala ezincane zasendlini, izindawo zezemidlalo, noma izinto zobuciko.