Nws tau ntev lawm txij li lub koob yees duab RED kawg tau tshwm sim ntawm CineD HQ, tab sis ntawm no nws yog dua, nrog RED V-RAPTOR 8K VV hauv peb txhais tes. Kuv xav sim nws nyob rau hauv peb cov qauv kuaj kuaj. Kuj xav paub? Tom qab ntawv nyeem rau…
Ntau tus neeg nyeem tau nug peb tias peb puas muaj sijhawm los sim RED V-RAPTOR 8K lub koob yees duab hauv peb lub chaw kuaj mob, tshwj xeeb tshaj yog tom qab peb sim ARRI ALEXA 35 tshiab (lab kuaj ntawm no).
RED V-RAPTOR muaj qhov tshwj xeeb zoo kawg nkaus nrog 35.4MP (40.96 x 21.60mm) full-frame CMOS sensor, 8K @ 120fps thiab thov 17+ nres ntawm dynamic ntau yam.
Nws suab zoo kawg nkaus, tab sis raws li peb txhua tus paub, tsis muaj cov txheej txheem rau kev sim cov dynamic ntau ntawm cov duab txav (saib peb tsab xov xwm thiab peb ua li cas ntawm no) - yog li peb tau tsim ib qho qauv CineD kuaj kom tsis paub tias cov chaw tsim khoom hais li cas. !
Yog li, cia peb xam nws - nws ua rau kev nkag siab los nyeem cov ntawv ua ntej saib cov yeeb yaj kiab, tab sis qhov no yog nyob ntawm koj
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Ua ntej pib, peb cia lub koob yees duab sov li 20 feeb, ces ntxoov ntxoo (calibrate) lub sensor nrog lub lens cap kaw (lub koob yees duab tam sim no firmware yog 1.2.7). Raws li ib txwm muaj, kuv cov npoj yaig nyob zoo Florian Milz ib zaug ntxiv tau pab kuv nrog qhov kev kuaj sim no - ua tsaug!
Siv peb cov txheej txheem dov shutter ntsuas nrog peb cov strobes, peb tau txais cov khoom 8ms (tsawg dua yog zoo dua) nyob rau hauv tag nrho-ncej 8K 17: 9 DCI nyeem ntawv. Qhov no yog yuav tsum tau, txwv tsis pub 120fps ntawm 8K yuav tsis tau. Qhov no yog ib qho txiaj ntsig zoo tshaj plaws uas peb tau sim, tsuas yog Sony VENICE 2 muaj qhov qis dua dov ntawm 3ms (piv txwv li, ARRI ALEXA Mini LF muaj 7.4ms, sim ntawm no).
Hauv 6K Super 35 hom, dov lub sijhawm kaw yog txo rau 6ms, tso cai rau koj tua ntawm 160fps ntawm qhov kev daws teeb meem no. Cov no yog thawj qhov tseem ceeb hauv chav kawm.
Raws li ib txwm muaj, peb tau siv DSC Labs Xyla 21 daim ntawv los ntsuas qhov muaj zog ntau yam. RED V-RAPTOR tsis muaj cov txheej txheem ISO, REDCODE RAW ISO tuaj yeem teeb tsa los tshaj tawm.
Tam sim no koj yuav xav paub dab tsi tshwm sim ntawm no? Vim li cas kuv thiaj tsis pib suav chaw nres tsheb li niaj zaus thiab tsis quav ntsej qhov chaw nres tsheb thib ob ntawm sab laug? Zoo, qhov thib ob nres ntawm sab laug yog rov tsim dua los ntawm clipped RGB raws, uas yog "Highlight Recovery" ua rau RED IPP2 raj xa dej los ntawm lub neej ntawd.
Yog tias koj nthuav dav RGB raws ntawm lub waveform, koj tuaj yeem pom tias muaj dab tsi tshwm sim - qhov thib ob nres (qhia los ntawm lub voj voog liab) tsis qhia cov ntaub ntawv xim RGB.
Tsuas yog lub chaw nres tsheb thib peb ntawm sab laug muaj tag nrho 3 RGB channel, tab sis cov channel liab twb nyob ntawm qhov chaw pib. Yog li ntawd, peb suav cov nres ntawm qhov dynamic ntau ntawm qhov thib peb thaj.
Yog li nrog peb cov txheej txheem txheej txheem (raws li nrog txhua lub koob yees duab) peb tuaj yeem mus txog li 13 nres saum lub suab nrov. Qhov no yog qhov txiaj ntsig zoo heev - piv rau ARRI ALEXA Mini LF (lab kuaj ntawm no) nws tsuas yog ib kauj ruam siab dua (ALEXA 35 yog 3 kauj ruam siab dua). Cov koob yees duab zoo tshaj plaws rau cov neeg siv khoom siv feem ntau muaj txog 12 nres kom pom txhua yam.
Tam sim no, tej zaum koj yuav xav tsis thoob vim li cas kuv tsis suav qhov "rov qab" nres? Cov lus teb yog tias nws tsis muaj tag nrho cov ntaub ntawv xim. Qhov cuam tshuam ntawm no yog pom tseeb yog tias koj nqes mus rau qhov txiaj ntsig latitude.
Saib ntawm IMATEST cov lus suav, qhov kev ua haujlwm no tseem ceeb rov qab tau skew cov txiaj ntsig vim IMATEST kuj suav cov nres uas tsis tau txiav tab sis rov qab los. Yog li, IMATEST qhia 13.4 nres ntawm SNR = 2 thiab 14.9 nres ntawm SNR = 1.
Tib yam siv tau rau tag nrho cov duab 4K ProRes 4444 XQ. Txaus siab heev, IMATEST cov txiaj ntsig ntawm ISO800 yog qhov zoo sib xws: 13.4 nres ntawm SNR = 2 thiab 14.7 nres ntawm SNR = 1. Kuv xav tias yuav txo qis hauv lub koob yees duab los txhim kho cov txiaj ntsig zoo.
Rau kev siv tau hla dhau, kuv kuj tau ntsuas 8K R3D rau 4K hauv DaVinci Resolve 18, thiab ntawm no kuv tau txais qhov zoo tshaj plaws: 13.7 nres ntawm SNR = 2 thiab 15.1 nres ntawm SNR = 1.
Peb qhov ntsuas tam sim no rau tag nrho cov ncej dynamic ntau yam yog ARRI ALEXA Mini LF nrog 13.5 nres ntawm SNR = 2 thiab 14.7 nres ntawm SNR = 1 tsis muaj qhov tseem ceeb rov qab. ARRI ALEXA 35 (Super 35 sensor) ua tiav 15.1 thiab 16.3 nres ntawm SNR = 2 thiab 1 raws li (dua yam tsis muaj lub teeb rov qab).
Saib ntawm cov qauv waveforms thiab IMATEST cov txiaj ntsig, Kuv xav tias RED V-RAPTOR muaj 1 nres ntau qhov dynamic ntau dua li cov neeg siv khoom zoo tshaj plaws tag nrho cov koob yees duab. Lub ALEXA Mini LF muaj 1 nres ntau qhov dynamic ntau dua li RED V-RAPTOR, thaum lub ALEXA 35 muaj 3 nres ntau dua.
Kev Ceeb Toom: Nrog Blackmagic koob yees duab hauv BRAW, koj tuaj yeem xaiv qhov "Highlight Recovery" kev xaiv hauv tus ncej (hauv DaVinci Resolve). Tsis ntev los no kuv tau khiav qhov kev sim nrog kuv BMPCC 6K thiab ntawm no qhov "Highlight Recovery" kev xaiv ua rau IMATEST tau qhab nia txog 1 nres siab dua nrog SNR = 2 thiab SNR = 1 dua li tsis muaj HLR.
Ib zaug ntxiv, txhua yam raug tua hauv REDCODE RAW HQ ntawm ISO 800 siv DaVinci Resolve (Full Res Premium) kev txhim kho teeb tsa tau qhia saum toj no.
Latitude yog lub koob yees duab lub peev xwm khaws cov ntsiab lus thiab xim thaum overexposed los yog underexposed thiab rov qab mus rau hauv paus raug. Qee lub sij hawm dhau los, peb tau xaiv qhov tsis txaus ntseeg tus nqi ntawm 60% (hauv cov qauv nthwv dej) rau lub ntsej muag ntawm cov khoom (ntau dua, lub hauv pliaj) hauv qhov xwm txheej studio. Qhov kev nthuav qhia CineD no yuav tsum pab peb cov neeg nyeem kom tau txais cov ntsiab lus ntawm kev siv rau txhua lub koob yees duab sim, txawm tias lawv muab cov lej li cas lossis hom LOG lawv siv li cas. Nws yog qhov nthuav heev uas ALEXA Mini LF yog symmetrical txog lub hauv paus ntsiab lus ntawm qhov ci ci ntawm 60% (nws yog latitude 5 nres saum toj no thiab 5 nres hauv qab no).
Rau V-RAPTOR, qhov teeb tsa 60% ci ntsa iab twb kub lawm, thiab muaj 2 lub sijhawm ncua ntxiv hauv qhov tseem ceeb ua ntej cov channel liab ntawm kuv cov npoj yaig Nino lub hauv pliaj pib clip:
Yog hais tias peb ua kom qhov raug tshaj qhov ntau, peb yuav ntaus raws nraim qhov chaw nres tsheb (uas yog qhov thib ob nres ntawm sab laug hauv waveform saum toj no):
Koj tuaj yeem pom hauv daim duab saum toj no tias tag nrho cov ntaub ntawv xim ntawm Nino lub hauv pliaj (thiab lub ntsej muag) ploj, tab sis qee cov duab nthuav dav tseem pom - qhov ntawd yog qhov tseem ceeb rov qab ua.
Qhov no yog qhov zoo vim nws khaws cov ntsiab lus hauv cov duab overexposed rau qee yam. Koj tuaj yeem txheeb xyuas nws yooj yim nrog RED teeb pom kev zoo cov cuab yeej thaum lawv qhia RAW sensor qhov tseem ceeb.
Hauv qhov piv txwv saum toj no, yog tias qhov kis tau nce ntau dua 2 nres ntawm cov duab overexposed, lub teeb liab yuav qhia tau tias cov channel liab tau pib txiav (ib yam li lub teeb liab RGB).
Tam sim no cia peb saib ntawm qhov tsis txaus ntseeg. Los ntawm kev tso lub aperture mus rau f / 8 thiab tom qab ntawd txo lub kaum sab xis mus rau 90, 45, 22.5 degrees (thiab lwm yam) peb tau txais cov duab zoo nkauj thiab huv si nrog tsuas yog 6 nres ntawm qhov tsis pom (hauv qab peb lub hauv paus scene) qee lub suab nrov:
Peb ntaus 8 nres ntawm qhov raug latitude, feem ntau peb tuaj yeem tau txais los ntawm cov neeg siv khoom puv lub koob yees duab. Zoo, txawm tias Sony VENICE 2 ntaus qhov kev daws teeb meem ib txwm muaj ntawm 8.6K (siv X-OCN XT codec). Los ntawm txoj kev, kom deb li deb tsuas yog cov neeg siv lub koob yees duab tuaj yeem los ze rau 9 nres yog FUJIFILM X-H2S.
Qhov txo qis suab nrov tseem khaws cov duab no, txawm hais tias peb xaus nrog lub zog brownish-pink tint (uas tsis yooj yim rau tshem tawm):
Peb twb nyob ntawm 9 theem ntawm kev raug latitude! Lub koob yees duab tag nrho zoo tshaj plaws rau hnub tim, ALEXA Mini LF tsoo 10 nres. Yog li cia saib seb peb puas tuaj yeem ua tiav qhov no nrog RED V-RAPTOR:
Tam sim no, nrog lub suab nrov txo qis, peb tuaj yeem pom tias daim duab pib sib nrug - peb tau txais cov xim muaj zog heev, thiab hauv qhov tsaus ntuj ntawm daim duab, tag nrho cov ntsiab lus raug rhuav tshem:
Txawm li cas los xij, nws tseem zoo li xav tsis thoob, tshwj xeeb tshaj yog vim lub suab nrov tau muab faib ua nyias nyias - tab sis txiav txim rau koj tus kheej.
Qhov no coj peb mus rau qhov kawg tshwm sim: ib qho khoom 9-nres raug latitude nrog qee chav wiggle ntawm 10 nres.
Raws li kev siv latitude tam sim no, ARRI ALEXA 35 qhia 12 nres ntawm kev sib kis latitude hauv peb tus qauv CineD studio scene - 3 nres ntau dua, uas tuaj yeem pom hauv lub koob yees duab waveforms thiab IMATEST cov txiaj ntsig (ntawm no yog cov kev kuaj sim).
Tsis tsuas yog RED V-RAPTOR xa cov kev ua tau zoo, nws kuj tau ua kom pom kev ua haujlwm siab hauv peb lub chaw sim. Rolling shutter qhov tseem ceeb yog qhov zoo tshaj plaws (kev nyab xeeb rau pawg thawj coj Sony VENICE 2), dynamic range thiab latitude results are strong, only about 1 stop from the ARRI Alexa Mini LF – our reference full-frame cinema camera so far.
Koj puas tau tua nrog RED V-RAPTOR? Koj qhov kev paub yog dab tsi? Qhia rau peb paub koj cov kev xav hauv nqe lus hauv qab no!
Koj tuaj yeem tshem tawm txhua lub sijhawm los ntawm kev siv qhov txuas unsubscribe nrog rau txhua tsab ntawv xov xwm. Yog xav paub ntxiv, thov mus saib peb Txoj Cai Tswjfwm Ntiag Tug
Xav tau CineD hloov tshiab tsis tu ncua ntawm xov xwm, tshuaj xyuas, yuav ua li cas, thiab ntau dua? Sau npe rau peb tsab ntawv xov xwm thiab peb yuav pab koj.
Koj tuaj yeem tshem tawm txhua lub sijhawm los ntawm kev siv qhov txuas unsubscribe nrog rau txhua tsab ntawv xov xwm. Cov ntaub ntawv muab thiab cov ntawv xov xwm qhib cov txheeb cais yuav raug khaws cia raws li cov ntaub ntawv tus kheej kom txog thaum koj tsis tuaj yeem sau npe. Yog xav paub ntxiv, thov mus saib peb Txoj Cai Tswjfwm Ntiag Tug
Txaus siab rau qhov muaj peev xwm tshiab ntawm cov koob yees duab compact. Tsis yog ib tug mob siab rau tua neeg uas ua lub neej ua nws. Grting kuv cov hniav hais txog Panasonic GH series, Kuv ib txwm xav kom kuv lub iav me me li sai tau thaum kuv mus ncig thoob ntiaj teb uas kuv tau ua yeeb yaj kiab piav qhia txog kev nyiam ua haujlwm.
Xav tau CineD hloov tshiab tsis tu ncua ntawm xov xwm, tshuaj xyuas, yuav ua li cas, thiab ntau dua? Sau npe rau peb tsab ntawv xov xwm thiab peb yuav pab koj.
Koj tuaj yeem tshem tawm txhua lub sijhawm los ntawm kev siv qhov txuas unsubscribe nrog rau txhua tsab ntawv xov xwm. Cov ntaub ntawv muab thiab cov ntawv xov xwm qhib cov txheeb cais yuav raug khaws cia raws li cov ntaub ntawv tus kheej kom txog thaum koj tsis tuaj yeem sau npe. Yog xav paub ntxiv, thov mus saib peb Txoj Cai Tswjfwm Ntiag Tug
Unsubscribe ntawm qhov txuas hauv tsab ntawv xov xwm. suav nrog cov txheeb cais khaws tseg kom txog rau thaum koj tso npe. Saib Txoj Cai Tswjfwm Ntiag Tug kom paub meej.
Post lub sij hawm: Dec-13-2022