An daɗe tun lokacin da kyamarar RED ta ƙarshe ta bayyana a CineD HQ, amma ga shi kuma, tare da RED V-RAPTOR 8K VV a hannunmu. Ina so in gwada shi a daidaitattun gwaje-gwajenmu. Hakanan m? Sannan karanta…
Yawancin masu karatu sun tambaye mu ko muna da damar gwada kyamarar RED V-RAPTOR 8K a cikin dakin binciken mu, musamman bayan mun gwada sabon ARRI ALEXA 35 (gwajin lab a nan).
RED V-RAPTOR yana da ƙayyadaddun bayanai masu ban mamaki tare da 35.4MP (40.96 x 21.60mm) cikakken firam na CMOS firikwensin, 8K@120fps da da'awar 17+ tasha na tsayayyen kewayon.
Yana da ban mamaki, amma kamar yadda muka sani, babu wani ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun hotuna masu motsi (duba labarinmu da yadda muke yin shi a nan) - don haka mun ƙirƙiri daidaitaccen gwajin gwajin CineD don sanin abin da masana'anta ke faɗi. !
Don haka, bari mu gano shi - yana da ma'ana don karanta labarin kafin kallon bidiyon, amma wannan ya rage na ku
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Kafin farawa, mun bar kyamarar ta yi dumi na minti 20, sannan inuwa (calibrate) firikwensin tare da murfin ruwan tabarau rufe (firmware na kyamara na yanzu shine 1.2.7). Kamar yadda aka saba, abokin aiki na ƙaunataccen Florian Milz ya sake taimaka mini da wannan gwajin gwajin - na gode!
Yin amfani da daidaitaccen hanyar ma'aunin rufewar mu tare da strobes, muna samun ingantaccen 8ms (mafi ƙarancin kyau) a cikin cikakken firam na 8K 17: 9 DCI karantawa. Ana tsammanin wannan, in ba haka ba 120fps a 8K ba zai yiwu ba. Wannan shine ɗayan mafi kyawun sakamako da muka gwada, kawai Sony VENICE 2 yana da ƙaramin jujjuyawar 3ms (misali, ARRI ALEXA Mini LF yana da 7.4ms, an gwada anan).
A cikin yanayin 6K Super 35, lokacin rufewa yana raguwa zuwa 6ms, yana ba ku damar harbi a 160fps a wannan ƙuduri. Waɗannan su ne darajoji na farko.
Kamar yadda muka saba, mun yi amfani da ginshiƙi na DSC Labs Xyla 21 don gwada kewayo mai ƙarfi. RED V-RAPTOR bashi da ma'anar ISO na asali, REDCODE RAW ISO ana iya saita shi zuwa aikawa.
Yanzu kana iya tunanin me ke faruwa a nan? Me ya sa ban fara kirga tashoshi kamar yadda na saba ba na yi watsi da tasha ta biyu daga hagu? Da kyau, an sake gina tasha ta biyu daga hagu daga tashoshi na RGB da aka yanke, wanda shine "Highlight Recovery" wanda aka gina a cikin bututun RED IPP2 ta tsohuwa.
Idan kun fadada tashoshin RGB na tsarin motsi, za ku iya ganin abin da ya faru - tasha ta biyu (wanda aka nuna ta da'irar ja) ba ta nuna wani bayanin launi na RGB ba.
Tashar ta uku kawai daga hagu tana da duk tashoshi 3 RGB, amma tashar jan ta riga ta kasance a bakin kofa. Saboda haka, muna ƙidaya tasha na kewayo mai ƙarfi daga faci na uku.
Don haka tare da daidaitaccen tsarin mu (kamar yadda yake da dukkan kyamarori) za mu iya zuwa kusan tasha 13 sama da matakin amo. Wannan sakamako ne mai kyau sosai - idan aka kwatanta da ARRI ALEXA Mini LF (gwajin lab a nan) mataki ɗaya ne kawai (ALEXA 35 shine matakan 3 mafi girma). Mafi kyawun kyamarori masu cikakken firam yawanci suna da kusan tsayawa 12 don ganin komai.
Yanzu, kuna iya mamakin dalilin da yasa ban kirga wannan tasha ta “farfadowa” ba? Amsar ita ce ta rasa duk bayanin launi. Abubuwan da ke faruwa anan a bayyane suke idan kun gungura ƙasa zuwa sakamakon latitude.
Duban lissafin IMATEST, wannan tsoho yana haskaka dawo da sakamakon saboda IMATEST kuma yana ƙididdige tasha waɗanda ba a yanke su ba amma an dawo dasu. Don haka, IMATEST yana nuna tsayawar 13.4 a SNR = 2 da 14.9 yana tsayawa a SNR = 1.
Hakanan ya shafi cikakken tsarin 4K ProRes 4444 XQ. Abin sha'awa sosai, sakamakon IMATEST a ISO800 yana da kama da juna: 13.4 yana tsayawa a SNR = 2 da 14.7 yana tsayawa a SNR = 1. Ina tsammanin raguwa a cikin kyamara don inganta sakamako mai tasiri.
Don tabbatar da giciye, Na kuma ƙaddamar da 8K R3D zuwa 4K a cikin DaVinci Resolve 18, kuma a nan na sami mafi kyawun dabi'u: 13.7 yana tsayawa a SNR = 2 kuma 15.1 yana tsayawa a SNR = 1.
Alamar mu ta yanzu don cikakken kewayon firam mai ƙarfi shine ARRI ALEXA Mini LF tare da tsayawa 13.5 a SNR = 2 kuma 14.7 yana tsayawa a SNR = 1 ba tare da farfadowa da haske ba. ARRI ALEXA 35 (Super 35 firikwensin) ya sami 15.1 da 16.3 yana tsayawa a SNR = 2 da 1 (sake ba tare da dawo da haske ba).
Duban raƙuman raƙuman ruwa da sakamakon IMATEST, Ina tsammanin RED V-RAPTOR yana da 1 tasha mafi tsauri fiye da mafi kyawun kyamarori masu cikakken firam. ALEXA Mini LF yana da 1 tasha mafi tsauri fiye da RED V-RAPTOR, yayin da ALEXA 35 yana da 3 yana tsayawa.
Bayanin gefe: Tare da kyamarori na Blackmagic a cikin BRAW, zaku iya zaɓar zaɓin "Haske farfadowa da na'ura" a cikin gidan (a cikin DaVinci Resolve). Kwanan nan na yi gwaji tare da BMPCC 6K na kuma a nan zaɓin "Haske farfadowa" ya haifar da ƙimar IMATEST game da tasha 1 mafi girma tare da SNR=2 da SNR=1 fiye da ba tare da HLR ba.
Hakanan, an harbe komai a REDCODE RAW HQ a ISO 800 ta amfani da saitunan ci gaban DaVinci Resolve (Full Res Premium) wanda aka nuna a sama.
Latitude shine ikon kamara don riƙe daki-daki da launi lokacin da ba a bayyana shi ba ko kuma ba a bayyana shi ba kuma baya ga fallasa tushe. Wani lokaci da ya gabata, mun zaɓi ƙimar haske ta sabani na 60% (a cikin sigar kalaman) don fuskar abu (mafi dai dai, goshi) a daidaitaccen yanayin sitidiyo. Wannan ainihin bayyanar CineD ya kamata ya taimaka wa masu karatunmu su sami ma'anar tunani don duk kyamarori da aka gwada, ko ta yaya suke sanya ƙimar lamba ko yanayin LOG da suke amfani da su. Yana da matukar ban sha'awa cewa ALEXA Mini LF yana da ma'ana game da ma'anar ma'anar tushe na ƙimar haske na 60% (latitude 5 yana tsayawa sama da 5 yana tsayawa a ƙasa wannan batu).
Don V-RAPTOR, saitin haske na 60% ya riga ya yi zafi, kuma akwai ƙarin dakatarwa guda 2 a cikin abubuwan da aka fi sani kafin tashar ja akan goshin abokina mai ƙauna Nino ya fara ɗaukar hoto:
Idan muka ƙara haɓakawa fiye da wannan kewayon, za mu buga daidai wurin tsayawar sake ginawa (wanda shine tasha ta biyu daga hagu a cikin sigar igiyar ruwa a sama):
Kuna iya gani a cikin hoton da ke sama cewa duk bayanan launi a goshin Nino (da fuskarsa) sun ɓace, amma har yanzu ana iya ganin wasu cikakkun bayanai - wannan shine abin da haskaka farfadowa ke yi.
Wannan yana da kyau saboda yana adana daki-daki a cikin hotuna da aka wuce gona da iri zuwa wani yanki. Kuna iya gano shi cikin sauƙi tare da kayan aikin bayyanar hasken zirga-zirga na RED yayin da suke nuna ƙimar firikwensin RAW.
A cikin misalin da ke sama, idan an ƙara fiddawa da fiye da tashoshi 2 na hoton da ya wuce gona da iri, RED fitulun zirga-zirga zai nuna cewa an fara guntuwar tashar jan (kamar siginar RGB).
Yanzu bari mu dubi underexposure. Ta hanyar sauke buɗewar zuwa f / 8 sannan kuma rage kusurwar rufewa zuwa 90, 45, 22.5 digiri (da dai sauransu) muna samun hoto mai kyau da tsabta tare da kawai tasha 6 na rashin fahimta (a ƙasan yanayin mu) wasu ƙananan hayaniya:
Mun buga tasha 8 na latitude na fallasa, mafi yawan abin da za mu iya samu daga cikakken kyamarar mabukaci. Da kyau, har ma da Sony VENICE 2 ya buga iyakar ƙudurin ƙasa na 8.6K (ta amfani da codec X-OCN XT). Af, ya zuwa yanzu kawai kyamarar mabukaci da za ta iya zuwa kusa da tasha 9 ita ce FUJIFILM X-H2S.
Rage amo har yanzu yana adana wannan hoton, ko da yake mun ƙare tare da launin ruwan hoda mai ƙarfi (wanda ba shi da sauƙin cirewa):
Mun riga mun kasance a matakan 9 na latitude fallasa! Mafi kyawun kyamarar firam ɗin har zuwa yau, ALEXA Mini LF ta buga tsayayyen tsayawa 10. Don haka bari mu ga ko za mu iya cimma wannan tare da RED V-RAPTOR:
Yanzu, tare da raguwa mai ƙarfi mai ƙarfi, zamu iya ganin cewa hoton ya fara raguwa - muna samun simintin launi mai ƙarfi sosai, kuma a cikin sassan duhu na hoton, duk cikakkun bayanai sun lalace:
Duk da haka, har yanzu yana da kyau mai ban mamaki, musamman tun lokacin da aka rarraba amo a hankali - amma yi hukunci da kanka.
Wannan ya kawo mu ga sakamako na ƙarshe: ƙaƙƙarfan shimfidar wuri mai tsayi 9 tare da wasu ɗaki mai jujjuya zuwa tasha 10.
Dangane da bayanin latudu na yanzu, ARRI ALEXA 35 yana nuna tasha 12 na latitude a cikin daidaitaccen yanayin ɗakin studio ɗin mu na CineD - 3 yana tsayawa ƙari, wanda kuma ana iya gani a cikin raƙuman ruwa na kyamara da sakamakon IMATEST (a nan ne gwaje-gwajen lab).
Ba wai kawai RED V-RAPTOR yana ba da kyakkyawan aiki ba, ya kuma nuna babban aiki a cikin dakin binciken mu. Ƙididdiga masu rufewa sune mafi kyau (aminci ga jagoran rukuni Sony VENICE 2), kewayo mai ƙarfi da sakamakon latitude suna da ƙarfi, kusan tasha 1 kawai daga ARRI Alexa Mini LF - kyamarar silima mai cikakken firam ɗin mu zuwa yanzu.
Shin kun taɓa yin harbi da RED V-RAPTOR? Menene gogewar ku? Bari mu san tunanin ku a cikin sashin sharhin da ke ƙasa!
Kuna iya cire rajista a kowane lokaci ta amfani da hanyar haɗin yanar gizo da aka haɗa tare da kowane wasiƙar. Don ƙarin bayani, da fatan za a duba Manufar Sirrin mu
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Kuna iya cire rajista a kowane lokaci ta amfani da hanyar haɗin yanar gizo da aka haɗa tare da kowane wasiƙar. Bayanan da aka bayar da ƙididdigar buɗe wasiƙar za a adana su bisa bayanan sirri har sai kun yi rajista. Don ƙarin bayani, da fatan za a duba Manufar Sirrin mu
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Kuna iya cire rajista a kowane lokaci ta amfani da hanyar haɗin yanar gizo da aka haɗa tare da kowane wasiƙar. Bayanan da aka bayar da ƙididdigar buɗe wasiƙar za a adana su bisa bayanan sirri har sai kun yi rajista. Don ƙarin bayani, da fatan za a duba Manufar Sirrin mu
Cire rajista ta hanyar haɗin yanar gizo a cikin wasiƙar labarai. Ya haɗa da ajiyayyun ƙididdiga har sai kun cire rajista. Dubi Dokar Sirri don cikakkun bayanai.
Lokacin aikawa: Dec-13-2022