Farin Balance: Samun Daidaitaccen Launi a Hotunanku ~ Kashi na 1

White Balance: Menene menene kuma me yasa yake da mahimmanci ga Masu ɗaukar hoto

na Rich Reierson

Wannan sakon shine farkon a cikin gajeren jerin kan yadda masu daukar hoto zasu iya amfani farin auna don inganta launi a hotunansu.

White balance yana ɗaya daga cikin mahimman mahimmancin fasaha yayin ɗaukar hotuna. Yi tunanin hotonku a matsayin gida kuma kuna buƙatar tushe don gina gidan. Farin ma'auni (WB) shine tushe. A sauƙaƙe sanya farin ma'auni shine yanayin zafin jiki na fata mai baƙar fata wanda ke haskaka hasken kamanni mai kama da waccan hasken. Sauti kyawawan fasaha. Yi tunanin shi a cikin digiri na dumi ko sanyi. Ana auna waɗannan digiri a cikin Kelvin tare da digiri na 5000 kasancewa tsaka tsaki.

Shafin Launi kyauta ta Jami'ar Duke

Idanunmu suna da kyau wajen hukunta abin da ke fari a ƙarƙashin haske daban-daban, duk da haka kyamarorin dijital galibi suna da matsala ƙwarai da daidaitaccen farin baiti. WB mara kyau zai iya ƙirƙirar shuɗi mara kyau, lemu, ko ma masu launin kore, waɗanda ba su da ma'ana kuma musamman lalata hotuna. Don magance nakasa, an riga an loda kyamarori tare da bayanan martaba don yanayin harbinku na musamman. Da farko, ana samun daidaiton farin farin a cikin duk kyamarorin dijital kuma yana amfani da mafi kyawun ƙididdigar algorithm a cikin iyakantaccen iyaka - yawanci tsakanin 3000/4000 K da 7000 K. Ga mafi yawan lokuta, daidaiton farin fari zai sa ku kusanci da WB daidai. Na biyu shine daidaiton farin farin. Wannan yana baka damar matsayin mai harbi don daidaita ma'aunin farin ta amfani da kati ko hula. Zamuyi magana game da wadannan kadan kadan. Sauran gumakan suna yin aiki daidai don ƙara zafin jiki launi. Anan akwai babban wakilcin tasirin canza saitattun abubuwa akan hoto.

Waɗannan an ɗauke su tare da D300 na a cikin hanyoyi daban-daban na WB:

tambaya: Wanne hoto ne daidai daidaitaccen farin?

amsa: Babu hoto mai kyau! A zahiri babu ɗayansu da yake cikakke daidai kuma zamuyi magana game da wannan shafin yanar gizo na gaba amma WB yana da cikakken ra'ayi. Abinda nake nufi shine wasu mutane suna son hotunan mai sanyaya wasu kuma suna son hotuna masu dumi. Mai daukar hoto ne zai yanke hukunci. Duk irin shawarar da aka yanke, a tabbata cewa hotunan suna aiki tare da juna ta yadda mutum ba zai rinka jin dumi ya huce ba.

Amsar mai sauki ita ce duk abin da kuke tunanin daidai ne, daidai ne. Wani lokaci hoto yana buƙatar ɗan ɗan dumi ko ɗan ɗan sanyi. Idonka da matattarar abin dubawa suna da mahimmanci don yanke hukunci akan abin da ke “daidai” aƙalla a cikin idanun ka.

Calibrating da aiki tare da WB

Idan saitattun hanyoyin ba suyi aiki a gare ku ba kuma kuna son ingantacciyar hanyar daidaita WB kuna da 'yan zaɓuɓɓuka. Na farko, akwai wasu coversan murfin ruwan tabarau waɗanda ke ba ku madaidaicin WB a cikin yanayin jagora ta hanyar harba kiban aiki tare da su a haɗe. Dole ne shugaban kasuwa ya kasance Exodisc. Hanya ta biyu don cimma daidaitaccen launi shine harbi a launin toka-toka. An yi amfani da katunan grey shekaru da yawa azaman hanya don daidaita hoton ta hanyar bayar da ma'anar tsaka tsaki don daidaita daidaitaccen farin. Zan rufe yadda ake amfani da katunan launin toka da murfin ruwan tabarau a cikin rubutu na gaba. Na uku shine harba a yanayin RAW. Yanayin ɗan adam yana da kyau don yanayi mai wahala wanda ke ba da izinin daidaita daidaiton farin a cikin aikin sarrafa post ɗin aikinku.

A takaice, RAW yana baka damar kafa bayanin martaba na launi, daidaita daidaituwa, saita farin fari, da gyara hoton kafin a matse shi cikin tsarin JPG. Kyakkyawan dokar babban yatsa shine cewa idan kuna da wata shakka idan harbe-harbenku zasu kasance "kashe" harba a ɗanye kuma daidaita cikin aikin aikawa.

Ku dawo gobe don koyon yadda ake amfani da aiki a cikin Lightroom, Adobe Camera Raw, da Photoshop don daidaita daidaitaccen farin.

*** Abubuwa / Ayyuka na MCP guda biyu masu alaƙa da wannan post ɗin ***

1. Cimma daidaitaccen farin shine farkon farawa. Da zarar kun gama wannan, kuna so kuyi la'akari da na MCP Kwalejin Horar da Photoshop Gyara Launi - koya muku zuwa samun kyakkyawan launin fata a Photoshop.
2. Idan baku harbi Raw ba, ko launukanku har yanzu suna kallon lokacin da kuke yin gyara a cikin Photoshop, kuna iya fa'idantar da jakar MCP ta Dabaru - waɗannan Ayyukan Photoshop suna taimakawa launi mai kyau da gyara sautunan fata.

Wannan post din na bakin bako ne Reierson mai arziki, gwani a Photoshop da Lightroom kuma mamallakin Mariposa Hotuna a cikin Dallas / Fort Worth. Babban abin da ya fi mayar da hankali shi ne tallafa wa mai ɗaukar hoto ta hanyar gina keɓaɓɓun kwamfutoci da aka gina don gyara da koyawa a kan Photoshop da Lightroom. A matsayinsa na gefe yana harbi zaman kan tsarin isar da sako. Ya kasance yana amfani da samfuran Adobe tun a shekarar 1994 kuma har yanzu yana da ainihin faifai 11 na Photoshop 3.0. Mahaifi ne na yara 2 kuma yace matarsa ​​tana yin mafi kyau da baka.