1.Ingabe ilensi ebanzi engela ilungele imidwebo?

Impendulo imvamisa cha,ama-lens aude-anglengokuvamile azilungele ukubulawa kwezithombe. I-lens ebanzi engela, njengoba igama libonisa, linomkhakha omkhulu wokubuka futhi lingafaka ubuhle obuningi ekudutshulweni, kepha futhi lizodala ukuhlanekezela nokushintshana kwabalingiswa esithombeni.

Lokho ukusho ukuthi, ukusebenzisa ilensi ebanzi yokudubula ama-portraits kungalimaza izici zobuso zabalingiswa. Isibonelo, isilinganiso sekhanda nomzimba sikhudlwana, futhi imigqa yobuso nayo izokhunjulwa futhi ihlanekezelwe. Lokhu akuyona ukukhetha okuhle kwesithombe se-portrait.

Uma udinga ukuthatha imidwebo, kunconywa ukusebenzisa ubude obugxile ephakathi noma ilensi yefoni ukuze kufinyelelwe umphumela ongokoqobo futhi ongokoqobo wemvelo ezintathu. Ngakho-ke, liyini ilensi ebanzi engela ilungele ukudubula?

A ilensi enobubanziInobude obugxilikisayo, imvamisa phakathi kuka-10mm no-35mm. Insimu yayo yokubuka inkulu kunaleyo iso lomuntu elingabona. Kufanelekile ukudubula ezinye izigcawu ezigcwele abantu, izindawo eziningi zomhlaba, nezithombe ezidinga ukugcizelela ukujula kwensimu nemiphumela yokubuka.

I-Wide-Angle Lens Ukudubula Umfanekiso

Ngenxa yenkambu yayo ebanzi yokubuka, ilensi ebanzi yama-angle ingabamba izinto eziningi, okwenza isithombe sicebe futhi sibekwe ngaphezulu. Ilensi ebanzi engela nayo ingaletha izinto kude naseduze kwesithombe, inikeze umuzwa wokuvuleleka. Ngakho-ke, ama-lens abanzi ama-angle asetshenziselwa ukudubula izakhiwo, izigcawu zemigwaqo yedolobha, izikhala zasendlini, izithombe zeqembu, kanye nezithombe zendiza.

2.Umgomo wokucabanga nezimpawu zeama-lens aude-angle

Ukucatshangelwa kwelensi ebanzi kufinyelela umphumela obanzi we-anglenge ngokuklanywa kohlelo lwelensi kanye nokuqhafaza ukukhanya ngohlelo oluthile lwelensi, isimo esikude kakhulu kusuka ku-axis central kubhekwe kuwo Inzwa Yesithombe Yekhamera noma ifilimu), ngaleyo ndlela evumela ikhamera ukuthi ithathwe ngombono obanzi. Lesi simiso sisetshenziswa kabanzi ekuthathwe kwezithombe, ukukhangisa kanye nezinye izinkambu.

Singaqonda inqubomgomo yokucabanga yama-lide-angle lens ezivela ezicini ezilandelayo:

I-Lens System:

Ama-lens aude-angleImvamisa sebenzisa inhlanganisela yobude obugxile ekugxileni kanye nama-lens amakhulu we-rejini. Lo mklamo uvumela ilensi ebanzi engela ukuqoqa ukukhanya okwengeziwe futhi idlulisele kahle inzwa yesithombe sekhamera.

Ukulawulwa kwe-Aberrration:

Ngenxa yokwakheka okukhethekile, ama-lens angu-per-angle avame ukuthambekela ezinkingeni ze-abrrration, njengokuhlanekezela, ukuhlakazeka, njll. Ukubhekana nalezi zinkinga, abakhiqizi basebenzisa ubuchwepheshe obuhlukahlukene bokukhanya kanye nokuqeda le miphumela emibi.

I-Projection Angle:

Ilensi ebanzi engela ifinyelela umphumela obanzi we-anglel ngokwandisa i-angle phakathi kwesigameko kanye ne-axis ephakathi yelensi. Ngale ndlela, kuzofakwa ubuhle obuningi esithombeni ebangeni elifanayo, okubonisa insimu ebanzi yokubuka.

Ilensi ebanzi

Kuzinhlelo zokusebenza ezisebenzayo, kudingeka sikhethe i-lens ebanzi ebanzi esekwe ezidingweni ezithile nezimo ezithile. Ngokuvamile, izici zokucabanga zama-lens abanzi ama-angle zimi ngokulandelayo:

Ukuhlukumezeka Okubonakalayo:

Lapho kudubula izinto ezisondelene neilensi enobubanzi, ukuhlanekezela okunombono kwenzeka, okusho ukuthi esithombeni esithunjiwe, izinto eziseduze zizobonakala zikhudlwana, kanti izinto ezikude zizovela zincane. Umphumela wokuphaphama kokubuka ungasetshenziselwa ukudala umphumela ohlukile obonakalayo, njengombono weqa umthetho nokugcizelela izinto zangaphambi komhlaba.

Inkambu ebanzi:

Ilensi ebanzi engela ingabamba insimu ebanzi yokubuka futhi ingabamba indawo ethile noma izigcawu eziningi. Ngakho-ke, ama-lide-angle lens ajwayele ukusetshenziselwa ukudubula izigcawu ezinjengezindawo zomhlaba, izakhiwo, ngaphakathi, kanye nezixuku ezidinga ukukhombisa umuzwa wesikhala esibanzi.

Imiphetho egobile:

Ama-lens e-wide-angle athambekele ekuhlanekezelweni kwemiphumela noma emiphumeleni egobile, ikakhulukazi emaphethelweni avundlile nawomile. Lokhu kungenxa yokulinganiselwa ngokomzimba kwe-lens design futhi kwesinye isikhathi kungasetshenziselwa ukudala ngamabomu imiphumela ekhethekile noma ngolimi lokubuka.

Ukujula okunwetshiwe kwenkambu:

Ilensi ebanzi engela inobude obuncane bokugxila, ngakho-ke ingakhiqiza ukujula kwenkambu enkulu, okungukuthi, zombili izindawo ezingaphambili nezingemuva zingagcina isithombe esicacile. Le mpahla yenzaama-lens aude-angleIwusizo kakhulu ekuqeshweni lapho ukujula kwesimo konke kudinga ukugcizelelwa khona.

Ukufundwa okuhlobene:Iyini ilensi ye-fisheye? Yiziphi izinhlobo ezintathu ze-fisheye lens?