I-Digital Low Light Photography: Ukuthatha iMifanekiso emangalisayo kwiiMeko eziCelomngeni

Kwixesha lanamhlanje ledijithali, ukufota kuye kwafikeleleka ngakumbi kubantu abaninzi ngokufika kwee-smartphones kunye neekhamera zedijithali eziphambili. Ukufota ngokukhanya okuphantsi yenye yezona ndawo kuthethwa ngazo malunga neefoto apho abafoti bathatha imifanekiso emangalisayo kwiimeko ezinzima zokukhanya. Njengoko iteknoloji yedijithali ihambela phambili, abafoti ngoku banezixhobo zokuthatha iifoto ezintle kwiimeko zokukhanya okuphantsi.

Ukufota okunokukhanya okuphantsi kubandakanya ukufota imifanekiso kwindawo enokukhanya okuncinci kwendalo, njengasebusuku okanye kwindawo engaphakathi ekhanyiswe luzizi. Olu hlobo lokufota luza nemiceli mngeni ekhethekileyo, kubandakanya ukungaboni kakuhle, ingxolo ephezulu, kunye nesidingo samaxesha amade wokuvezwa. Nangona kunjalo, ngezixhobo ezifanelekileyo zedijithali kunye nobuchule, abafoti banokufikelela kwiziphumo ezimangalisayo kwiimeko zokukhanya okuphantsi.

Enye yenkqubela phambili ephambili ekufotweni kokukhanya okuphantsi kwedijithali ibe kuphuhliso lwezakhono ze-ISO eziphezulu kwiikhamera zedijithali. I-ISO ibhekisa kubuntununtunu besixhobo sekhamera ekukhanyeni, kwaye useto oluphezulu lwe-ISO luvumela abafoti ukuba babambe imifanekiso kwiimeko zokukhanya okuphantsi ngaphandle kokusebenzisa umthombo wokukhanya owongezelelweyo. Ngokukwazi ukudubula kwiindawo eziphezulu ze-ISO, abafoti banokufikelela kwimifanekiso eqaqambileyo, ecacileyo kwiindawo ezimnyama, ukunciphisa imfuno yokukhanyisa okwenziweyo.

Ukongeza kubuchule obuphezulu be-ISO, iikhamera zedijithali zibonakalisa itekhnoloji yokunciphisa ingxolo ephucukileyo enceda ukunciphisa ubutya kunye nengxolo yedijithali ehlala ibonwa kwimifanekiso enokukhanya okuphantsi. Ezi algorithms zokunciphisa ingxolo zigcina umgangatho womfanekiso kunye neenkcukacha nakwiimeko zokukhanya ezicela umngeni, zivumela abafoti ukuba babambe imifanekiso ebukhali, ecacileyo kwiindawo zokukhanya okuphantsi.

Ukongezelela, ukuqhubela phambili kweteknoloji ye-digital sensor kuye kwaphucula ukusebenza kweekhamera zedijithali kwiimeko eziphantsi zokukhanya. Iikhamera ezininzi zale mihla zixhotyiswe ngezivamvo ezinkulu ezibamba ukukhanya okungakumbi kwaye zivelise imifanekiso ekumgangatho ophezulu kwiimeko zokukhanya okuphantsi. Ukongeza, ukuphuhliswa kwe-back-illuminated (BSI) sensors kuye kwaphucula ngakumbi ukusebenza kokukhanya okuphantsi kweekhamera zedijithali, ukunika abafoti izixhobo zokuthatha imifanekiso emangalisayo nakwiindawo zokukhanya ezinzima kakhulu.

Kwindawo yokufota i-smartphone, amandla okukhanya okuphantsi nawo aphuculwe kakhulu kwiminyaka yakutshanje. Ngokudibanisa ii-algorithms zokusetyenzwa kwemifanekiso ephucukileyo kunye nokusebenza kweMowudi yasebusuku, iikhamera ze-smartphone ngoku zinokuvelisa imifanekiso ekhaphukhaphu esezantsi ngaphandle kwesidingo sezixhobo ezongezelelweyo. Le nkqubela phambili yenze ukuba ukufota okunokukhanya okuphantsi kufikeleleke ngakumbi kubaphulaphuli ababanzi, kuvumela nabani na one-smartphone ukuba athathe imifanekiso enomtsalane kwindawo emnyama.

Ngokudityaniswa kobuchule obuphezulu be-ISO, itekhnoloji yokunciphisa ingxolo kunye neteknoloji ye-sensor ephuculweyo, ukufota okuphantsi kokukhanya kwedijithali kuye kwaba yintsimi enomdla kunye neguqukayo kubafoti. Nokuba kubanjwa izibane zesixeko ezibenyazelayo ebusuku okanye umoya osondele kwisidlo sangokuhlwa esikhanyiswe ngamakhandlela, ukufota okunokukhanya okuphantsi kwedijithali kunika amathuba angapheliyo okudala abafoti ukuba baphonononge kwaye babonise umbono wabo wobugcisa.

Njengoko itekhnoloji yedijithali iqhubeka nokuvela, ikamva leefoto ezinokukhanya okuphantsi likhangeleka liqaqambile kunangaphambili, linika abafoti izixhobo zokutyhala imida yokuyila kunye nokuthatha imifanekiso emangalisayo nakwiimeko ezinzima zokukhanya. Imifanekiso emangalisayo.