Ubuyile ekuthatheni izithombe namavidiyo ebusuku. Uqaphele ukuthi wonke amalambu e-LED ezigxotsheni zokukhanya, ezimotweni, nakwezinye izindawo ayacwayiza. Esweni lakho lenyama, izibani zibukeka ziqinile. Eqinisweni, amalambu ayacwayiza uma usebenzisa ikhamera engenasibuko, i-DSLR, noma ifoni ukuze urekhode.
The umphumela we-stroboscopic yenza izibani ze-LED zilokoze, kodwa iso lomuntu alikwazi ukukubona. Kwenzeka ngokushesha (cishe izikhathi ezingu-60 ngomzuzwana noma ngaphezulu). Amafoni namakhamera angenazibuko angakwazi ukubhekana nalokhu okungavamile.
Lo mphumela uba sobala kakhulu uma izinga lozimele wekhamera lihlukile kunesilinganiso sozimele we-LED. Lokhu kubonakala kakhulu uma kukhona ozimele abaningi ngomzuzwana noma ngenkathi kushuthwa ividiyo ngokuhamba kancane.
Ngabe I-Stroboscopic Effect isebenza kanjani?
Kungenzeka ukuthi ufunde mayelana "ukuphikelela kombono” ezincwadini zakho zakudala ze-physics. Kuyisici esenza kube nzima ukukhohlwa esikubonayo. Noma into ingasekho kulayini wethu wokuyibona, sisakwazi ukuyibona. Ngenxa yalokhu, sibona ukuphila njengokugeleza okuqhubekayo esikhundleni sochungechunge lwezithombe ezahlukene.
Ama-LED avula futhi acime ngokushesha, futhi asikwazi ukuwabona ngeso lenyama. Ngakho-ke, ngisho nangemva kokucisha izibani, kubonakala sengathi zisakhanya. Amavidiyo enziwe ngochungechunge lwezithombe, njengezithombe ezimile. Lezi zigcawu zirekhodwa ngenani eliphezulu lozimele ngomzuzwana (i-FPS).
Uma lo mphumela uhlanganiswa namanye amaqhinga, ingqondo yethu icabanga ukuthi yonke into ekusikrini ihamba ngokunyakaza okukodwa, okubushelelezi.
Ukucwayiza kwesikrini kwenzeka uma izinga lozimele (i-FPS) lingaphezulu kwenani lezikhathi lapho ama-LED avulwa futhi acishwa ngomzuzwana. Lokhu kunikeza umbono wokuthi kukhona okungalungile ngesibonisi.
Kungani Ama-LED Avula Futhi Avaliwe?
Uma ama-LED acwayiza, ashintsha phakathi kokuvula nokuvala. Ukubhayiza kwabo kuhlangene nogesi abawunikwayo.
Isikhathi esiningi, i-LED icwayiza ngokushesha kakhulu ukuze umuntu ayibone. Ungaqiniseka ukuthi noma yikuphi ukucwayiza okubona kukhamera kuwukukhanya okusebenzayo kuphela. Kufanele ukhathazeke kuphela uma ubona i-LED icwayiza ngamehlo akho anqunu.
Inika amandla ama-LED ngomthombo wamandla we-DC
Uma sinika amandla i-LED ngomthombo wamanje oqondile, ama-electron angaphakathi kwe-diode ahlala esesimweni sokushajwa. Ngakho-ke, kuze kube yilapho isifunda siphukile, bazoqhubeka benikeza amandla okukhanya futhi babe nefomu elisebenzayo. Umthelela ocwayizayo uzophela uma a Amandla weDC umthombo unika amandla i-LED, futhi ibanjwa kufilimu.
Inika amandla ama-LED ngomthombo wamandla we-AC
Isikhathi esiningi, umsinga oshintshanayo uzovela emthonjeni ofana nesokhethi yodonga. Ngokwencazelo, imanje elishintshanayo livula kabili bese licisha kathathu emjikelezweni owodwa.
Ngakho-ke, ama-electron ashajiwe abuyela emagobolondweni awo kathathu ngokukhipha wonke amandla awo njengokukhanya. Baphinde bakhokhiswe futhi ngemva kokubuya ngakunye kwalokhu okuthathu. Ngenxa yalokhu, uma ukukhanya kwe-LED kuxhunywe ku- Amandla we-AC umthombo, kuzobukeka sengathi iyantweza kuvidiyo.
Kodwa awukwazi ukuxhuma ama-LED ku-AC yamanje ngoba ukushintsha njalo phakathi kokuvula nokuvala kunciphisa impilo yama-LED ngezinga elikhulu.
Ngakho-ke, axhunywe "kubashayeli," okungabalawuli abashintsha okwamanje kusukela ku-AC kuya ku-DC ngaphambi kokuyithumela esibani. Ngakho-ke, ngeke ubone ukucwayiza ku-LED umshayeli akunika amandla
Pulse Ububanzi Ukushintshashintsha Kwezwi
Izibani ze-LED ezicwayizayo ekhamera azihlali ngenxa yokungatholakali kwamandla kagesi e-AC noma e-DC. Lokhu kuyiqiniso ikakhulukazi njengoba ubuchwepheshe bokudlulisa sebuthuthukile.
Amalambu e-LED akhanyiswa abashayeli angacwayiza. Ukunikezwa kwamandla kungahlukaniswa kube ama-pulses ahlukene wamanje esikhundleni sokusakaza okuqhubekayo. Lokhu kwenza umehluko omkhulu ekusetshenzisweni kwamandla. Lokhu kubangela ukuthi amalambu alokoze, njengoba ebengenza ngamandla e-AC. Yilokhu okushiwo igama elithi “ukuguquguquka kobubanzi be-pulse.” I-Pulse width modulation isetshenziselwa ukufiphalisa amalambu nokwenza kusebenze amalambu asemini ezimotweni.
Ingabe Ama-Incandescent Ama-Incandescent Ayanyaza Kumavidiyo?
Amalambu e-incandescent acwayiza ngenani eliqinile, njengezibani ze-LED. Kodwa kunzima kakhulu ukubamba ukucwayiza kwesibani se-incandescent efilimini. Lokhu kungenxa yokuthi lezi zinhlobo ezimbili zama-bulb zisebenza kanjani.
Izibani ze-incandescent nazo zisebenzisa ugesi we-AC futhi zivula futhi zicime phakathi kuka-100 no-120 izikhathi ngesekhondi. Nokho, imicu yabo isebenza ngokuhlukile. Njengoba umucu uya ushisa futhi ushise ukwenza ukukhanya nokushisa. Isibani sihlala sikhanya isikhathi eside ngemva kokuba i-current icishiwe.
Akwenzeki ngokomzimba ukuba umcu uphole uze ufike kuqanda bese ushisa izikhathi ezingu-120 ngomzuzwana owodwa. Ngakho-ke, kubonakala kuvuliwe kuphela ngoba i-filament eshisayo ekhanyayo isakhipha ukushisa. Ngenxa yalokho, amalambu avamile awacwayizi uma eqoshwa.
Ungawamisa Kanjani Amalambu E-LED Ekukhanyeni Kukhamera?
Abantu abaningi bakuthola kucasula lapho lezi zibani ziqhubeka zikhanya futhi zicisha. Kodwa kukhona ongakwenza ukuze wenze lokhu kungabi yinkinga. Ezinye iziphakamiso zimi kanje.
· Lungisa ukuthi mangaki amafreyimu aboniswa njalo ngomzuzwana
· Suka emthonjeni wokukhanya uma ukwazi
· Lungisa isivinini se-shutter njengoba kudingeka
· Lungisa ukukhanya kokukhanya
Lungisa ukuthi bangaki ozimele ababoniswayo njalo ngesekhondi
Ngenxa yemininingwane eyengeziwe ethwetshulwe izinga eliphezulu lozimele, ukuphazima kwezibani ze-LED kubonakala kugqame kakhulu kunalokho oyikho ngempela kuvidiyo. Uma ividiyo idinga ozimele abaningi ngesekhondi, maningi amathuba okuba le miphumela ibanjwe. Izinga lozimele lekhamera lingehliswa ukuze kwenziwe lokhu kwenzeke kancane.
Suka emthonjeni wokukhanya uma ukwazi.
Indlela eshesha kakhulu futhi elula yokumisa ukurekhodwa okuhamba kancane kanye namavidiyo ukuthi angacwayizi ukusuka emthonjeni wokukhanya. Njengoba usuka emthonjeni wokukhanya, ungalindela ukukhanya kuzoncipha futhi kungakwazi ukukhombisa.
Kodwa kukhona izinto ezimbi ngalokhu. Njengoba usuka esihlokweni sakho, isigcawu sizoba mnyama. Ngakho-ke uzodinga ukudlala ngokuchayeka kwekhamera yakho nezilungiselelo zokungena.
Ngaphandle kwebhalansi elungile phakathi kwakho kokubili, okuqoshiwe kwakho kungase kubonakale kumnyama kakhulu noma kukhanye kakhulu.
Lungisa isivinini se-shutter njengoba kudingeka
Isivinini se-shutter sibalulekile futhi ukuze uthole imininingwane ohlakeni. Ukuze ushintshe isivinini se-shutter, kufanele ucabange ukuthi umthombo wamandla usebenza kaningi kangakanani.
Isibonelo, uma usebenza ngomthombo wamandla angu-60 hertz (Hz), kungcono ukuthwebula amafreyimu angu-30 ngesekhondi ngokuphindaphinda kwesivinini sokuvala okungu-60 (1/60, 1/120). Ngenxa yalokhu, ukucwayiza kufanele kwenzeke kancane.
Lungisa ukukhanya kokukhanya
Uma ukwazi, ungazama nokushintsha ukuthi izibani zikhanya kangakanani. Uma ikhanya, izobe icwayiza kakhulu. Kodwa kwenzeka okufanayo uma uqhela kakhulu nomthombo. Isithunzi somzimba wakho siyakhula njengoba usuka emthonjeni wokukhanya.
Ngakho-ke, uma umthombo wakho wokukhanya ungemuhle kakhulu, ungawenza ngokushintsha indlela ikhamera yakho esebenza ngayo.
Isifinyezo
Manje usungakwazi ukushutha amafilimu endle ngokuzethemba. Manje njengoba usuqonda ukuthi yini ebangela ukucwayiza nokuthi ungayiqeda kanjani. Ungayeki uma ukucwayiza kwenzeka ngemuva kokuzama kwakho kokuqala. Uzothola ukuthi yini esebenza kangcono ngesikhathi nangempendulo.
Ngeke ubhekane nezinkinga mayelana nalokhu. Kodwa kufanele wazi ukuthi ungakhetha kanjani ubude bokugxila obufanele, isivinini se-shutter, nezimo zokukhanyisa.
Siyifekthri esebenza ngokukhethekile ekukhiqizeni izinga eliphezulu ngokwezifiso Imichilo ye-LED nezibani ze-neon ze-LED.
Ngiyacela Xhumana nathi uma udinga ukuthenga izibani ze-LED.
