Ubuyile ekuthatheni imifanekiso kunye neevidiyo ebusuku. Uqaphele ukuba zonke izibane ze-LED kwiipali zokukhanya, iimoto, kunye nezinye iindawo ziyadanyaza. Kwiliso lakho lenyama, izibane zikhangeleka zizinzileyo. Enyanisweni, izibane ziyalayita xa usebenzisa isipili esingenazipili, i-DSLR, okanye ikhamera yefowuni ukuzirekhoda.
The impembelelo ye-stroboscopic yenza izibane ze-LED zilayite, kodwa iliso lomntu aliboni. Kwenzeka ngokukhawuleza (malunga namaxesha angama-60 ngesekhondi okanye ngaphezulu). Iifowuni kunye neekhamera ezingenazipili zinokuthatha oku kungaqhelekanga.
Esi siphumo sibonakala ngakumbi xa ireyithi yesakhelo sekhamera yahlukile kwireyithi yesakhelo se-LED. Oku kubonakala kakhulu xa kukho iifreyimu ezininzi ngesekhondi okanye ngelixa uthwebula ividiyo ngentshukumo ecothayo.
Isebenza njani iStroboscopic Effect?
Usenokuba ufunde malunga "ukuzingisa kombono” kwiincwadi zakho zakudala zefiziksi. Luphawu olubangela ukuba kube nzima ukulibala into esiyibonayo. Nokuba into ayisekho kumgca wethu wokuyibona, sinokuyibona. Ngenxa yoku, sibona ubomi njengento eqhubekayo endaweni yoluhlu lwemifanekiso eyahlukeneyo.
Ii-LED zivula kwaye zicime ngokukhawuleza, kwaye asikwazi ukuzibona ngeso lenyama. Ngoko ke, nasemva kokuba ucimile izibane, kubonakala ngathi zisakhanya. Iividiyo zenziwe ngothotho lwemifanekiso, njengeefoto ezimile. Le miboniso irekhodwa ngenani eliphezulu lezakhelo ngesekhondi (FPS).
Xa esi siphumo sidityaniswe namanye amaqhinga, ingqondo yethu icinga ukuba yonke into ekwisikrini ihamba ngentshukumo enye, egudileyo.
Ukuqhwanyaza kwesikrini kwenzeka xa ireyithi yesakhelo (FPS) iphezulu kunenani lamaxesha ii-LED zivulwa kwaye zicinywe ngomzuzwana. Oku kunika ingcamango yokuba kukho into engalunganga ngomboniso.
Kutheni ii-LED ziVula kwaye ziValwe?
Xa ii-LED ziqhwanyaza, zitshintsha phakathi kokuvula nokucima. Ukuqhwanyaza kwabo kunento yonke yokwenza nombane abawunikwayo.
Amaxesha amaninzi, i-LED iflicker ngokukhawuleza ukuba umntu angayibona. Unokuqiniseka ukuba nakuphi na ukuqhwanyaza okubona kwikhamera kukukhanya kuphela okusebenzayo ngokufanelekileyo. Kuya kufuneka ube nexhala kuphela xa ubona i-LED ishukuma ngamehlo akho eze.
Ukunika amandla ii-LEDs nge-DC Power Source
Xa sinika amandla i-LED kunye nomthombo wangoku ngokuthe ngqo, ii-electron ngaphakathi kwe-diode zihlala zikwisimo esihlawuliswayo. Ngoko ke, de kube isiphaluka siphulwe, baya kuqhubeka benika amandla okukhanya kwaye babe nefom esebenzayo. Isiphumo sokuqhwanyaza siya kuba singasekho xa a DC amandla umthombo unika amandla i-LED, kwaye ibanjwe kwifilimu.
Ukunika amandla ii-LEDs nge-AC Power Source
Amaxesha amaninzi, umsinga otshintshayo uya kuvela kumthombo onjengesokethi eludongeni. Ngokwenkcazo, umbane otshintshayo ujika kabini emva koko ucime kathathu kumjikelo omnye.
Ke, ii-electron ezihlawulisiweyo zibuyela kumaqokobhe awo kathathu ngokukhupha onke amandla azo njengokukhanya. Bahlawuliswa kuphela emva kokubuya ngakunye kwezi zintathu. Ngenxa yoko, ukuba ukukhanya kwe-LED kuqhagamshelwe kwi- Amandla AC umthombo, iya kujongeka ngathi iyadanyaza kwividiyo.
Kodwa awukwazi ukuqhagamshela ii-LEDs kwi-AC yangoku kuba ukutshintshwa rhoqo phakathi kokuvula nokucima kunciphisa ubomi bee-LEDs kakhulu.
Ke, badityaniswe "nabaqhubi," abangabalawuli abatshintsha okwangoku ukusuka kwi-AC ukuya kwi-DC ngaphambi kokuyithumela kwisibane. Ke, awuzukubona ukushukuma kwi-LED enikwa amandla ngumqhubi
Ukuguquguquka kobubanzi bePulse
Izibane ze-LED ezilayitayo kwikhamera azisoloko zibangelwa kukungabikho kwamandla e-AC okanye e-DC. Oku kuyinyani ngakumbi ngoku ukuba itekhnoloji yothumelo iphucukile.
Izibane ze-LED ezivulwa ngabaqhubi zinokufinyaza. Ubonelelo lwamandla lunokwahlulwa lube zii-pulse discrete zangoku endaweni yomsinga oqhubekayo. Oku kwenza umahluko omkhulu ekusebenziseni amandla. Oku kubangela ukuba izibane zilayite, njengokuba beziya kwenza ngamandla e-AC. Yile nto ithethwa ligama elithi “ukumodareyitha kobubanzi bokubetha kwentliziyo.” Ukumodareyitha kobubanzi be-Pulse kusetyenziselwa ukwenza izibane zibe luzizi kwaye zivule izibane ezibaleka emini ezimotweni.
Ngaba iiBhalbhu ze-Incandescent ziyaqhwanyaza kwiividiyo?
Iibhalbhu ze-incandescent zilayita ngesantya esizinzileyo, njengezibane ze-LED. Kodwa kunzima kakhulu ukubamba isibane sebhalbhu ye-incandescent kwifilimu. Oku kungenxa yendlela ezi ntlobo zimbini zeebhalbhu zisebenza ngayo.
Izibane ze-incandescent nazo zisebenzisa umbane we-AC kwaye zilayite kwaye zicime phakathi kwe-100 kunye ne-120 amaxesha ngomzuzwana. Nangona kunjalo, iifilaments zabo zisebenza ngokwahlukileyo. Njengoko umcu usiya usiba shushu ngakumbi ukwenza ukukhanya nobushushu. Ibhalbhu ihlala ikhazimla ixesha elide emva kokuba umsinga ucinyiwe.
Kuyinto engenakwenzeka ukuba umsonto uphole uye kutsho ku-zero uze emva koko ube shushu izihlandlo ezili-120 ngomzuzwana omnye. Ke, ibonakala ivuliwe kuphela ngenxa yokuba i-filament evuthayo evuthayo isakhupha ubushushu. Ngenxa yoko, iiglowubhu eziqhelekileyo aziqhwayizi xa zifotwa.
Ungazimisa njani izibane ze-LED ekukhanyeni kwiKhamera?
Abantu abaninzi bakufumanisa kuyacaphukisa xa ezi zibane ziqhubeka zivutha kwaye zicima. Kodwa kukho into onokuyenza ukuze wenze oku kungabi yingxaki kangako. Amanye amacebiso alandelayo.
· Lungisa ukuba zingaphi iifreyimu eziboniswayo kwisekondi nganye
• Suka kumthombo wokukhanya ukuba unako
· Lungisa isantya sesivalo njengoko kufuneka
· Lungisa ukukhanya kokukhanya
Lungisa ukuba zingaphi izakhelo eziboniswa kwisekondi nganye
Ngenxa yokwanda kweenkcukacha ezithatyathwe yireyithi ephezulu yesakhelo, ukudanyaza kwezibane ze-LED kubonakala kucace ngakumbi kunokuba kunjalo kwividiyo. Izakhelo ezininzi ngesekhondi enye ifuna ividiyo, kokukhona ezi ziphumo ziya kubanjwa. Ireyithi yesakhelo sekhamera inokucuthwa ukwenza oku ukuba kwenzeke kancinci.
Suka kumthombo wokukhanya ukuba unako.
Eyona ndlela ikhawulezayo nelula yokuyeka ukucotha-cotha kunye noshicilelo lwevidiyo ukuba lungadayizi kukusuka kude nomthombo wokukhanya. Njengoko usuka kude nomthombo wokukhanya, unokulindela ukuba ukukhanya kukhanye kwaye kungabi nakukwazi ukubonakalisa.
Kodwa kukho izinto ezimbi malunga noku. Njengoko usuka kude nesihloko sakho, indawo iya kuba mnyama. Ke kuya kufuneka udlale ngokuvezwa kwekhamera yakho kunye noseto lokuvula.
Ngaphandle kwebhalansi elungileyo phakathi kwezi zimbini, ividiyo yakho inokujongeka imnyama kakhulu okanye iqaqambe kakhulu.
Lungisa isantya sesivalo njengoko kufuneka
Isantya sokuvala sikwabalulekile ukufumana iinkcukacha kwisakhelo. Ukutshintsha isantya sokuvala, kufuneka ucinge ukuba umthombo wamandla usebenza kangaphi.
Umzekelo, xa usebenza nge-60 hertz (Hz) umthombo wamandla, kungcono ukudubula kwiifreyimu ezingama-30 ngesekhondi kunye nezantya ze-shutter eziphindaphindwe ngama-60 (1/60, 1/120). Ngenxa yoko, ukuqhwanyaza kufuneka kwenzeke kancinci.
Lungisa ukukhanya kokukhanya
Ukuba unako, ungazama nokutshintsha indlela eziqaqamba ngayo izibane. Okukhona iqaqamba, kokukhona iya kudanyaza. Kodwa kwenzeka into efanayo ukuba usuka kude kakhulu nomthombo. Isithunzi somzimba wakho siya sikhula njengoko usuka kude nomthombo wokukhanya.
Ke, ukuba umthombo wakho wokukhanya awulunganga kakhulu, unokuwenza ngokutshintsha indlela esebenza ngayo ikhamera yakho.
isishwankathelo
Ngoku unokudubula iifilimu endle ngokuzithemba. Ngoku ukuba uyaqonda ukuba yintoni ebangela ukuqhwanyaza kunye nendlela yokuphelisa. Unganikezeli ukuba ukuqhwanyaza kwenzeka emva kokuzama kwakho kokuqala. Uza kubona oko kusebenza kakuhle ngexesha kunye nengxelo.
Awuyi kujongana naziphi na iingxaki kulo mba. Kodwa kuya kufuneka uyazi indlela yokukhetha ubude obuchanekileyo bokugxila, isantya sokuvala, kunye neemeko zokukhanya.
Singumzi-mveliso okhethekileyo ekuveliseni umgangatho ophezulu olungiselelweyo Imichilo ye-LED kunye nezibane ze-neon ze-LED.
Ndiyacela Qhagamshelana nathi ukuba ufuna ukuthenga izibane ze-LED.
