Ilensi yokubona komshiniilensi eyenzelwe ukusetshenziswa ezinhlelweni zokubona komshini, ezaziwa nangokuthi amalensi ekhamera yezimboni. Izinhlelo zokubona komshini zivame ukuba namakhamera ezimboni, amalensi, imithombo yokukhanya, kanye nesofthiwe yokucubungula izithombe.
Zisetshenziselwa ukuqoqa, ukucubungula, nokuhlaziya izithombe ngokuzenzakalelayo ukuze zahlulele ngokuzenzakalelayo ikhwalithi yezinto zokusebenza noma ziqedele ukulinganisa indawo enembile ngaphandle kokuxhumana. Zivame ukusetshenziselwa ukulinganisa okunembile kakhulu, ukuhlanganisa okuzenzakalelayo, ukuhlola okungonakalisi, ukutholwa kwamaphutha, ukuzulazula kwamarobhothi kanye neminye imikhakha eminingi.
1.Yini okufanele uyicabangele lapho ukhetha amalensi okubona komshini?
Uma ukhethaamalensi okubona komshini, udinga ukucabangela izici ezahlukahlukene ukuze uthole ilensi ekufanele kakhulu. Izici ezilandelayo ziyizinto ezivamile okufanele uzicabangele:
Insimu yokubuka (i-FOV) kanye nebanga lokusebenza (i-WD).
Insimu yokubuka kanye nebanga lokusebenza kunquma ukuthi into ongayibona inkulu kangakanani kanye nebanga ukusuka kulensi kuya entweni.
Uhlobo lwekhamera oluhambisanayo kanye nosayizi wesenzi.
Ilensi oyikhethayo kumele ifane nesixhumi esibonakalayo sekhamera yakho, futhi ukugoba kwesithombe selensi kumele kube kukhulu noma kulingane nebanga eliqondile lesensa.
Umsebe wesigameko somsebe odlulisiwe.
Kuyadingeka ukucacisa ukuthi uhlelo lwakho lokusebenza ludinga ukuhlanekezelwa okuphansi, ukulungiswa okuphezulu, ukujula okukhulu noma ukucushwa kwelensi yokuvula enkulu.
Usayizi wento kanye namakhono okuxazulula.
Ukuthi into ofuna ukuyibona inkulu kangakanani nokuthi kudingeka isinqumo esihle kangakanani kudingeka kucace, okunquma ukuthi ikhamera yakho ingakanani indawo yokubuka nokuthi udinga amaphikseli amangaki.
Eizimo zemvelo.
Uma unezidingo ezikhethekile zemvelo, njengokungashaqeki, ukungangeni uthuli noma ukungangeni manzi, udinga ukukhetha ilensi engahlangabezana nalezi zidingo.
Isabelomali sezindleko.
Uhlobo lwezindleko ongakwazi ukuzikhokhela luzothinta uhlobo lwelensi kanye nemodeli ozoyikhetha ekugcineni.
Ilensi yokubona yomshini
2.Indlela yokuhlela amalensi okubona komshini
Kunezici eziningi okufanele uzicabangele lapho ukhetha amalensi.Amalensi okubona komshiniingahlukaniswa ngezinhlobo ezahlukene ngokwezindinganiso ezahlukene:
Ngokusho kohlobo lobude obuqondile, lungahlukaniswa kanje:
Ilensi yokugxila egxilile (ubude be-focal buzinzile futhi abukwazi ukulungiswa), ilensi ye-zoom (ubude be-focal buyalungiseka futhi ukusebenza kuyaguquguquka).
Ngokusho kohlobo lwe-aperture, ingahlukaniswa ibe:
Ilensi yokuvula ngesandla (ukuvula kudingeka kulungiswe ngesandla), ilensi yokuvula ngokuzenzakalelayo (ilensi ingalungisa ngokuzenzakalelayo ukuvulwa ngokuya ngokukhanya okuzungezile).
Ngokuya ngezidingo zesisombululo sesithombe, ingahlukaniswa ibe:
Amalensi okuxazulula ajwayelekile (afanele izidingo ezijwayelekile zokuthwebula izithombe njengokuqapha okuvamile nokuhlolwa kwekhwalithi), amalensi anokuxazulula okuphezulu (afanele ukutholwa kokunemba, ukuthwebula izithombe ngesivinini esikhulu kanye nezinye izinhlelo zokusebenza ezinezidingo zokuxazulula okuphezulu).
Ngokusho kosayizi wesensa, ingahlukaniswa ibe:
Amalensi amancane efomethi yenzwa (afanele izinzwa ezincane njenge-1/4″, 1/3″, 1/2″, njll.), amalensi efomethi yenzwa ephakathi (afanele izinzwa eziphakathi nendawo njengenzwa engu-2/3″, 1″, njll.), amalensi amakhulu efomethi yenzwa (amalensi ohlaka oluphelele noma amakhulu angu-35mm).
Ngokusho kwemodi yokuthwebula izithombe, ingahlukaniswa ibe:
Ilensi yokuthwebula izithombe ezinombala owodwa (ingathwebula izithombe ezimnyama nezimhlophe kuphela), ilensi yokuthwebula izithombe ezinombala (ingathwebula izithombe ezinemibala).
Ngokusho kwezidingo ezikhethekile zokusebenza, ingahlukaniswa ibe:amalensi aphansi okuhlanekezela(okunganciphisa umthelela wokuhlanekezela ikhwalithi yesithombe futhi okufanelekela izimo zohlelo lokusebenza ezidinga ukulinganiswa okunembile), amalensi okulwa nokudlidliza (afanele izindawo zezimboni ezinokudlidliza okukhulu), njll.
Isikhathi sokuthunyelwe: Disemba-28-2023
