Shin kun taɓa kallon allon LCD na kyamara a cikin ɗaki mai haske kuma kuna tunanin cewa hoton ya yi duhu sosai ko ba a fallasa?Ko kun taɓa ganin allo iri ɗaya a cikin duhu kuma kuna tunanin hoton ya wuce gona da iri?Abin ban mamaki, wani lokacin hoton da ake samu ba koyaushe shine abin da kuke tunanin zai kasance ba.
"Bayyanawa" yana ɗaya daga cikin mahimman ƙwarewar harbin bidiyo.Ko da yake masu amfani za su iya amfani da software na gyara hoto don yin gyare-gyare a bayan samarwa, sarrafa madaidaicin bayyanar zai iya taimakawa mai daukar hoto ya sami hotuna masu inganci da kuma guje wa ciyar da lokaci mai yawa a bayan samarwa.Don taimaka wa masu daukar hoto don sa ido kan fidda hoto, yawancin DSLRs suna da ginanniyar ayyuka don saka idanu akan fallasa.Misali, Histogram da Waveform kayan aiki ne masu amfani ga ƙwararrun masu daukar bidiyo.A cikin labarin mai zuwa, za mu gabatar da daidaitattun ayyuka don samun daidaitaccen fallasa.
Histogram
Ƙididdigar Histogram ya ƙunshi "X-axis" da "Y-axis."Ga axis “X”, gefen hagu na jadawali yana wakiltar duhu, kuma gefen dama yana wakiltar haske.Ƙimar Y-axis tana wakiltar ƙarfin pixel da aka rarraba cikin hoto.Mafi girman ƙimar kololuwa, ƙarin pixels akwai don takamaiman ƙimar haske da girman yankin da ya mamaye.Idan kun haɗa duk makin ƙimar pixel akan axis Y, yana samar da Taimakon Histogram mai ci gaba.
Don hoton da ya wuce gona da iri, ƙimar kololuwar ƙima ta histogram za ta taru a gefen dama na axis X;Akasin haka, don hoton da ba a bayyana ba, ƙimar kololuwar ƙima ta histogram za ta taru a gefen hagu na axis X.Don madaidaicin hoton da ya dace, ƙimar kololuwar ƙima ta histogram tana rarrabawa daidai gwargwado akan tsakiyar axis X, kamar ginshiƙi na yau da kullun.Yin amfani da Ƙimar Histogram, mai amfani zai iya kimanta ko bayyanar tana cikin daidaitaccen haske mai ƙarfi da kewayon jikewar launi.
Girman Waveform
Wurin Waveform yana nuna haske da ƙimar RGB & YCbCr don hoton.Daga Wurin Waveform, masu amfani zasu iya lura da haske da duhun hoton.Matsakaicin Waveform yana canza matakin haske da matakin duhun hoto zuwa tsarin igiyar ruwa.Misali, idan darajar “Duk Duhu” ita ce “0” kuma ƙimar “Duk Haske” ita ce “100”, zai gargaɗi masu amfani idan matakin duhu ya yi ƙasa da 0 kuma matakin haske ya fi 100 a hoton.Don haka, mai daukar hoto zai iya sarrafa waɗannan matakan da kyau yayin harbin bidiyo.
A halin yanzu, ana samun aikin Histogram akan kyamarorin DSLR masu shigowa da masu lura da filin.Koyaya, ƙwararrun masu saka idanu na samarwa kawai suna tallafawa aikin Waveform Scope.
Launi na Ƙarya
Launin Ƙarya kuma ana kiransa "Taimakawa Exposure."Lokacin da Aikin Launuka na Ƙarya ke kunne, za a haskaka launukan hoton idan ya wuce gona da iri.Don haka, mai amfani zai iya bincika bayyanar ba tare da amfani da wasu kayan aiki masu tsada ba.Don cikakkiyar fahimtar nunin Launin Ƙarya, dole ne mai amfani ya fahimci bakan launi da aka nuna a ƙasa.
Misali, a wuraren da ke da matakin bayyanawa na 56IRE, za a nuna launin-ƙarya azaman launin ruwan hoda akan na'urar duba lokacin da aka yi amfani da shi.Saboda haka, yayin da kuke ƙara bayyanar, wannan yanki zai canza launi zuwa launin toka, sa'an nan kuma rawaya, kuma a ƙarshe ya zama ja idan ya wuce gona da iri.Blue yana nuna rashin fallasa.
Tsarin Zebra
Tsarin "Zebra" shine aikin taimakon fallasa wanda ke da sauƙin fahimta ga sababbin masu amfani.Masu amfani za su iya saita matakin kofa don hoton, ana samunsu a cikin zaɓin “Level Exposure” (0-100).Misali, lokacin da aka saita matakin bakin kofa zuwa “90″, gargadin tsarin zebra zai bayyana da zarar haske a kan allo ya kai sama da “90″, yana tunatar da mai daukar hoto don sanin girman bayyanar hoton.
Lokacin aikawa: Afrilu-22-2022