Sekuyisikhathi eside kwavela ikhamera yokugcina RED e-CineD HQ, kodwa nansi futhi, sine-RED V-RAPTOR 8K VV ezandleni zethu. Ngingathanda ukukuhlola ekuhlolweni kwethu okujwayelekile kwelebhu. Futhi ufuna ukwazi? Bese ufunda ku...
Abafundi abaningi basibuze ukuthi sinalo yini ithuba lokuhlola ikhamera ye-RED V-RAPTOR 8K elebhu yethu, ikakhulukazi ngemuva kokuhlola i-ARRI ALEXA 35 entsha (ukuhlolwa kwelebhu lapha).
I-RED V-RAPTOR inama-specs amangalisayo anenzwa engu-35.4MP (40.96 x 21.60mm) yohlaka olugcwele lwe-CMOS, 8K@120fps kanye nezitobhi ezingu-17+ ezifunwayo zebanga eliguqukayo.
Kuzwakala kumangalisa, kodwa njengoba sonke sazi, alikho izinga elimisiwe lokuhlola ububanzi obuguquguqukayo bezithombe ezihambayo (bona isihloko sethu nokuthi sikwenza kanjani lapha) - ngakho-ke sidale ukuhlolwa kwelebhu ye-CineD okujwayelekile ukuze sazi ukuthi umkhiqizi uthini. !
Ngakho-ke, ake sikuthole - kunengqondo ukufunda isihloko ngaphambi kokubuka ividiyo, kodwa lokhu kukuwe.
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Ngaphambi kokuqala, sivumela ikhamera ukuthi ifudumale imizuzu engu-20, bese sifaka umthunzi (ukulinganisa) inzwa nge-cap ye-lens evaliwe (i-firmware yamanje yekhamera yi-1.2.7). Njengenjwayelo, uzakwethu othandekayo uFlorian Milz waphinde wangisiza ngalokhu kuhlolwa kwelebhu - ngiyabonga!
Sisebenzisa indlela yethu evamile yokulinganisa i-rolling shutter nama-strobes ethu, sithola u-8ms oqinile (okuncane kungcono) kuhlaka olugcwele 8K 17:9 DCI readout. Lokhu kufanele kulindelwe, ngaphandle kwalokho i-120fps ku-8K ibingeke yenzeke. Lona omunye wemiphumela emihle kakhulu esiyihlolile, i-Sony VENICE 2 kuphela ene-shutter engaphansi engu-3ms (isibonelo, i-ARRI ALEXA Mini LF ine-7.4ms, ihlolwe lapha).
Kumodi ye-6K Super 35, isikhathi sokuvala sincishiswa sibe ngu-6ms, okukuvumela ukuthi uthwebule ku-160fps kulesi sinqumo. Lawa amanani ekilasi lokuqala.
Njengokuvamile, sisebenzise ishadi le-DSC Labs Xyla 21 ukuhlola ububanzi obuguqukayo. I-RED V-RAPTOR ayinayo i-ISO yomdabu echaziwe, i-REDCODE RAW ISO ingasethwa ukuze ithunyelwe.
Manje ungase uzibuze ukuthi kwenzakalani lapha? Kungani ngingaqalanga ukubala iziteshi njengenjwayelo futhi ngingasinaki isiteshi sesibili ukusuka kwesokunxele? Hhayi-ke, isitobhi sesibili esivela kwesokunxele sakhiwe kabusha eziteshini ze-RGB ezisikiwe, ezithi “Ukubuyisela Okugqamile” okwakhelwe epayipini le-RED IPP2 ngokuzenzakalelayo.
Uma unweba iziteshi ze-RGB ze-waveform, ungabona ukuthi kwenzekani - isitobhi sesibili (esiboniswa yindilinga ebomvu) asibonisi noma yiluphi ulwazi lombala we-RGB.
Isiteshi sesithathu kuphela esisuka kwesokunxele esinazo zonke iziteshi ze-RGB ezi-3, kodwa isiteshi esibomvu sesivele siseduze komkhawulo. Ngakho-ke, sibala izitobhi zobubanzi obuguquguqukayo ukusuka esiqeshini sesithathu.
Ngakho-ke ngenqubo yethu evamile (njengawo wonke amakhamera) singakhuphukela ezitobhini ezingaba ngu-13 ngaphezu kwezinga lomsindo. Lona umphumela omuhle kakhulu - uma kuqhathaniswa ne-ARRI ALEXA Mini LF (ukuhlolwa kwelebhu lapha) kuyisinyathelo esisodwa kuphela phezulu (i-ALEXA 35 yizinyathelo ezingu-3 phezulu). Amakhamera ekhasimende anohlaka olugcwele angcono kakhulu anezitobhi ezingaba ngu-12 ukuze abone yonke into.
Manje, ungahle uzibuze ukuthi kungani ngingakubalanga lokhu “kululama” ukuma? Impendulo iwukuthi ayinalo lonke ulwazi lombala. Imithelela lapha isobala uma uskrolela phansi emiphumeleni ye-latitude.
Uma ubheka izibalo ze-IMATEST, lokhu kuthola okuvelele okuzenzakalelayo kuhlanekezela imiphumela ngoba i-IMATEST iphinda ibale izitobhi ezingasikiwe kodwa ezibuyiselwe. Ngakho, i-IMATEST ibonisa izitobhi ezingu-13.4 ku-SNR = 2 kanye nezitobhi ezingu-14.9 ku-SNR = 1.
Okufanayo kusebenza kuhlaka olugcwele lwe-4K ProRes 4444 XQ. Okuthakazelisa kakhulu, imiphumela ye-IMATEST ku-ISO800 ifana kakhulu: Izitobhi ezingu-13.4 ku-SNR = 2 nezitobhi ezingu-14.7 ku-SNR = 1. Bengilindele ukwehlisa izinga kukhamera ukuze kuthuthukiswe imiphumela yebanga eliguqukayo.
Ukuqinisekisa okuphambene, ngiphinde ngehlisa i-8K R3D kuya ku-4K ku-DaVinci Resolve 18, futhi lapha ngithole amanani angcono kakhulu: 13.7 izitobhi ku-SNR=2 kanye nezitobhi ezingu-15.1 ku-SNR=1.
Ibhentshimakhi yethu yamanje yobubanzi obuguquguqukayo bohlaka olugcwele yi-ARRI ALEXA Mini LF enezitobhi ezingu-13.5 ku-SNR=2 nezitobhi ezingu-14.7 ku-SNR=1 ngaphandle kokutholwa okuvelele. I-ARRI ALEXA 35 (inzwa ye-Super 35) ithole u-15.1 kanye nezitobhi ezingu-16.3 ku-SNR = 2 no-1 ngokulandelanayo (nakhona ngaphandle kokuthola ukukhanya).
Uma ngibheka ama-waveforms kanye nemiphumela e-IMATEST, ngicabanga ukuthi i-RED V-RAPTOR inobubanzi obungu-1 obushintshashintshayo obudlula amakhamera ohlaka olugcwele omthengi angcono kakhulu. I-ALEXA Mini LF inobubanzi obungu-1 obushintshashintshayo obudlula i-RED V-RAPTOR, kuyilapho i-ALEXA 35 inezitobhi ezingu-3 ngaphezulu.
Inothi eseceleni: Ngamakhamera e-Blackmagic ku-BRAW, ungakhetha inketho ethi “Gqamisa Ukubuyisela” kokuthunyelwe (ku-DaVinci Resolve). Ngisanda kwenza isivivinyo nge-BMPCC 6K yami futhi lapha inketho "yokugqamisa Ukubuyisela" iphumele kumphumela we-IMATEST mayelana nokuma oku-1 phezulu nge-SNR=2 kanye ne-SNR=1 kunangenayo i-HLR.
Futhi, yonke into yadutshulwa ku-REDCODE RAW HQ ku-ISO 800 kusetshenziswa izilungiselelo zokuthuthukisa i-DaVinci Resolve (Full Res Premium) eziboniswe ngenhla.
I-Latitude ikhono lekhamera lokugcina imininingwane kanye nombala lapho kuvezwe ngokweqile noma kungachazi kangako futhi ibuyela ekuchazweni okuyisisekelo. Esikhathini esithile esidlule, sakhetha inani lokukhanya elingenasizathu elingu-60% (nge-waveform) lobuso bento (ngokunembile, isiphongo) endaweni yesehlakalo esijwayelekile. Lokhu kuvezwa kwe-CineD okuyisisekelo kufanele kusize abafundi bethu bathole iphuzu lokubhekisela kuwo wonke amakhamera ahloliwe, kungakhathaliseki ukuthi bawabela kanjani amanani ekhodi noma iyiphi imodi ye-LOG ayisebenzisayo. Kuyathakazelisa kakhulu ukuthi i-ALEXA Mini LF iyalingana mayelana nephoyinti lereferensi eliyisisekelo levelu yokukhanya engu-60% (yi-latitude engu-5 yokuma ngenhla kanye nezitobhi ezi-5 ngaphansi kwaleli phuzu).
Ku-V-RAPTOR, isilungiselelo sokukhanya esingu-60% sesivele sishisa, futhi kukhona ukuphumuza okwengeziwe oku-2 ezithombeni ezinhle kakhulu ngaphambi kokuthi isiteshi esibomvu esisebunzini lika-Nino engisebenza naye othandekayo siqale ukuqoshwa:
Uma sikhulisa ukuchayeka ngale kwalobu bubanzi, sizoshaya ngqo indawo yokumisa ukwakha kabusha (okuyisitobhi sesibili ukusuka kwesokunxele kufomethi yegagasi ngenhla):
Ungabona esithombeni esingenhla ukuthi yonke imininingwane yombala osebunzini lika-Nino (nobuso) ilahlekile, kodwa eminye imininingwane yesithombe isabonakala - yilokho okwenziwa ukugqama kokuthola.
Lokhu kuhle ngoba kugcina imininingwane ezithombeni ezivezwe ngokwedlulele ngokwezinga elithile. Ungakwazi ukukuhlonza kalula ngamathuluzi okuchayeka amalambu ethrafikhi RED njengoba ebonisa amanani enzwa RAW.
Esibonelweni esingenhla, uma ukuchayeka kukhushulwe ngezitobhi ezingaphezu kwezi-2 zesithombe esichayeke ngokweqile, amarobhothi RED azobonisa ukuthi isiteshi esibomvu siyaqala ukunqunywa (njengesiginali ye-RGB).
Manje ake sibheke ukuchayeka kancane. Ngokwehlisa imbobo ibe ngu-f/8 bese wehlisa i-engeli yokuvala ibe ngu-90, 45, 22.5 degrees (njll) sithola isithombe esihle kakhulu nesihlanzekile esinezitobhi ezi-6 kuphela zokuchayeka kancane (ngezansi kwesizinda sethu) umsindo othile ongathi sína:
Sishaye izitobhi ezingu-8 ze-latitude yokuchayeka, okuningi esingakuthola kukhamera yomthengi enohlaka olugcwele. Hhayi-ke, ngisho ne-Sony VENICE 2 ishaye umkhawulo wesinqumo somdabu ongu-8.6K (isebenzisa i-codec ye-X-OCN XT). Ngendlela, kuze kube manje ikhamera yomthengi kuphela engasondela ezitobhini ezingu-9 yi-FUJIFILM X-H2S.
Ukwehliswa komsindo kusasigcina lesi sithombe, nakuba sigcina sinombala onsundu ngokuphinki oqinile (okungelula ukuwususa):
Sesivele sikumazinga angu-9 e-latitude yokuchayeka! Ikhamera yohlaka olugcwele engcono kakhulu kuze kube manje, i-ALEXA Mini LF ishaya izitobhi eziqinile eziyi-10. Ngakho-ke ake sibone ukuthi singakwazi yini ukufeza lokhu nge-RED V-RAPTOR:
Manje, ngokunciphisa umsindo okunamandla, singabona ukuthi isithombe siqala ukuhlukana - sithola umbala oqinile kakhulu, futhi ezingxenyeni ezimnyama zesithombe, yonke imininingwane iyachithwa:
Kodwa-ke, kusabukeka kukuhle ngokumangalisayo, ikakhulukazi njengoba umsindo usakazwa kancane kakhulu - kodwa zihlulele wena.
Lokhu kusiletha ekugcineni: i-latitude eqinile yokuchayeka oku-9 enegumbi elithile lokunyakazisa ukuya ezitobhini eziyi-10.
Ngokuqondene nereferensi ye-latitude yamanje, i-ARRI ALEXA 35 ibonisa izitobhi ezingu-12 ze-latitude yokuchayeka endaweni yethu evamile yesitudiyo se-CineD - 3 kuma ngaphezulu, okungase futhi kubonakale kumagagasi ekhamera kanye nemiphumela ye-IMATEST (nazi izivivinyo zelebhu).
I-RED V-RAPTOR ayigcini nje ngokuletha ukusebenza okumangazayo, futhi ibonise ukusebenza okuphezulu elebhu yethu. Amanani we-rolling shutter angcono kakhulu (aphephile kumholi weqembu u-Sony VENICE 2), ububanzi obuguquguqukayo nemiphumela ye-latitude inamandla, cishe isitobhi esingu-1 ukusuka ku-ARRI Alexa Mini LF - ikhamera yethu ye-cinema egcwele uhlaka kuze kube manje.
Wake wadubula nge-RED V-RAPTOR? Kuyini okuhlangenwe nakho kwakho? Sazise imicabango yakho esigabeni sokuphawula esingezansi!
Ungazikhipha ohlwini nganoma yisiphi isikhathi ngokusebenzisa isixhumanisi sokuzikhipha ohlwini esifakwe encwadini yezindaba ngayinye. Ukuze uthole ulwazi olwengeziwe, sicela ubheke Inqubomgomo yethu Yobumfihlo
Ingabe ufuna ukuthola izibuyekezo ezivamile ze-CineD ezindabeni, izibuyekezo, zokwenzani, nokuningi? Bhalisela iphephandaba lethu futhi sizokusiza.
Ungazikhipha ohlwini nganoma yisiphi isikhathi ngokusebenzisa isixhumanisi sokuzikhipha ohlwini esifakwe encwadini yezindaba ngayinye. Idatha enikeziwe kanye nezibalo zokuvula incwadi yezindaba zizogcinwa ngokusekelwe kudatha yomuntu siqu uze uzikhiphe ohlwini. Ukuze uthole ulwazi olwengeziwe, sicela ubheke Inqubomgomo yethu Yobumfihlo
Uthakaselwe amathuba amasha wamakhamera ahlangene. Akuyena umdubuli oshisekayo oziphilisa ngokwenza lokho. Ukugedla amazinyo ngochungechunge lwe-Panasonic GH, bengilokhu ngifuna ukugcina igiya lami lincane ngangokunokwenzeka phakathi nohambo lwami lomhlaba lapho ngenze khona ukuxoxa indaba yefilimu kwaba yinto yokuzilibazisa.
Ingabe ufuna ukuthola izibuyekezo ezivamile ze-CineD ezindabeni, izibuyekezo, zokwenzani, nokuningi? Bhalisela iphephandaba lethu futhi sizokusiza.
Ungazikhipha ohlwini nganoma yisiphi isikhathi ngokusebenzisa isixhumanisi sokuzikhipha ohlwini esifakwe encwadini yezindaba ngayinye. Idatha enikeziwe kanye nezibalo zokuvula incwadi yezindaba zizogcinwa ngokusekelwe kudatha yomuntu siqu uze uzikhiphe ohlwini. Ukuze uthole ulwazi olwengeziwe, sicela ubheke Inqubomgomo yethu Yobumfihlo
Zikhiphe ohlwini ngesixhumanisi esisencwadini yezindaba. Kubandakanya izibalo ezilondoloziwe uze uzikhiphe ohlwini. Bheka Inqubomgomo Yobumfihlo ukuze uthole imininingwane.
Isikhathi sokuthumela: Dec-13-2022