Pavel Jelic Hauv kev teeb tsa yav dhau los ntawm peb Profi iPhone koob yees duab, peb tau saib yam thiab lwm yam ntaub ntawv koj yuav tsum tau xyuas ua ntej yuav tua. Yog tias koj xav paub seb qhov no yog dab tsi tiag tiag, ces nyeem rau kawg, thib ob ib feem, yog li koj tsis nco cov ntaub ntawv tseem ceeb no. Hnub no ntu yuav yog qhov kawg theoretical ib feem - peb yuav saib cov ntsiab lus tseem ceeb, uas muaj feem xyuam rau kev yees duab. Hauv seem tom ntej, peb yuav tsom mus rau yees duab tua nws tus kheej, thiab tom qab ntawd hauv tom ntej no series ua ke peb yuav saib tom qab kev tsim khoom thiab yees duab editing hauv daim ntawv thov Lightroom los ntawm Adobe. Yog li ntawd, zaum rov qab thiab nyeem cov kab hauv qab no.
Nws yuav yog txaus siab rau koj
Cov tswv yim hais txog kev yees duab
Raws li kuv tau hais nyob rau hauv qhov kawg ntawm peb series, nyob rau hauv daim ntawv thov haiv Lub koob yees duab, uas muaj nyob rau hauv iOS no, ntau txoj kev xaiv rau peb tsis muaj kev teeb tsa duab. Txawm li cas los xij, yog tias peb ncav cuag daim ntawv thov, piv txwv li tsaus ntuj lossis Halide, yog li nws yuav muaj rau peb phau ntawv tswj ntawm txhua qhov chaw uas tuaj yeem hloov kho hauv lub koob yees duab iPhones. Qhov no feem ntau yuav yog npaj rau cov neeg siv uas yuav sim ua kev tuav lub koob yees duab los ntawm ib qho ntawm cov ntawv thov hais. Xijpeem, yog tias koj yog ib tus ntawm cov neeg siv uas yuav xav tawm txhua qhov kev rau siab rau automation, koj yuav tsum cov ntsiab lus hauv qab no txawm paub.
Cov duab thaij duab
Nphav
Kev nthuav tawm yog qhov tseem ceeb tshaj plaws thaum thaij duab. Qhov no yog ib hom "cov ntsiab lus" ntawm tag nrho cov chaw ntawm lub koob yees duab ua ntej tua. Qhov raug muaj peb ntu, Uas suav nrog nthuav qhia lub sijhawm, aperture thiab ISO rhiab heev. Yog tias koj teeb tsa ib qho ntawm cov kev txwv no ua ntej thaij duab tsis zoo, yog li feem ntau koj tuaj yeem tau txais los ntawm kev thaij duab zoo nkauj hais nyob zoo Koj tsuas tuaj yeem xyuas cov nqi no los ntawm kev teeb tsa kom raug zoo, ntse thiab tsis pom kev yees duab. Tag nrho tus nqi raug yuav tsum tsis txhob ntau siab, thiab qhov no yog li ntawd hu ua duab overexposed thiab tau kawg nws yuav tsum tsis txhob ntau dhau qis, thiaj li hu ua underexposed ib daim duab. Kev nthuav tawm tuaj yeem tsuas yog qhia hauv qhov hu ua exposure daim duab peb sab, uas koj tuaj yeem pom hauv qab no.
Lub sij hawm nphav raug
Yog tias koj dhia mus rau hauv kev teeb tsa lub sij hawm nphav raug, yog li koj yuav tsum paub ua ntej tias nws yog tus nqi qhia hauv units ntawm lub sijhawm. Qhov kev teeb tsa lub sijhawm no qhia tias nws yuav nyob ntev npaum li cas lub koob yees duab shutter qhib. Lub shutter guarantees lub sijhawm Tom qab ntawd nws yuav nyob rau ntawm daim duab sensor ntes lub teeb. Hauv kev xyaum, qhov ntev shutter ceev yog siv thaum koj xav tau daim duab hauv qee txoj kev qhov muag plooj - koj tuaj yeem soj ntsuam qhov "tshuaj" hauv, piv txwv li, cov duab los ntawm qhov xwm txheej uas tus kws yees duab thaij duab dej ntws (piv txwv li hauv kwj). Dej zoo heev polished thiab plooj thiab qhov tshwm sim yog qhov nthuav heev. Hauv qhov no, txawm li cas los xij, nws yog qhov yuav tsum tau siv tripod, vim tias txawm tias me ntsis txav nrog lub cuab yeej tuaj yeem ua rau blurring tag nrho cov duab thiab tsis yog dej xwb uas txav los ntawm nws tus kheej. Yog tias, ntawm qhov tod tes, koj xav sau nkaus xwb ib pliag npr at kev ua si nawv. lossis lub tsheb hla, yog li ntawd nws yog tsim nyog los teem qis lub sij hawm nphav raug. Lub sij hawm raug teeb tsa nyob rau hauv qhov tseem ceeb ntawm txhiab tus thib ob mus txog lub sijhawm ob peb feeb uas yog qhov loj heev uas koj tuaj yeem "ua si ncig".
Cov duab thaij nrog lub sijhawm ntev ntev:
Cov duab thaij duab
Aperture
Lub aperture yog ib feem ntawm lub koob yees duab uas yog tsim los ntawm txawv zoo li hlau lamellas. Cov slats no tuaj yeem hloov kho raws li xav tau qhib los yog kaw. Lub aperture, los ntawm nws qhov qhib (los yog kaw), txiav txim siab lub teeb yuav poob npaum li cas ntawm lub koob yees duab sensor. Cias muab, yog tias koj xav tau snapshot tsaus nti, yog li cov hlau lamellas ntau dua kaw li no ntaus lub sensor tsawg lub teeb. Ntawm qhov tsis sib xws, yog tias koj xav tau sib dua daim duab, yog li cov hlau slats lawv qhib ntau, yog li cuam tshuam lub sensor ntau lub teeb. Aperture yog denoted los ntawm ib tsab ntawv nyob rau hauv lub koob yees duab ntiaj teb no f. Koj yuav tsum tau pom tias lub koob yees duab ntawm koj iPhone kuj muaj tus lej aperture no. Dab tsi loj dua lawv tuaj yeem tsim lamellae qhib pro ntes teeb Violet me me je aperture naj npawb sensors. Yog li nws muaj tseeb li ntawd qhov me me f-number, qhov zoo dua. Ib lub sensor nrog me me f-tus lej tuaj yeem haum ntau lub teeb uas tuaj yeem ua ke thaum thaij duab hauv teeb pom kev zoo dua. Rau iPhone XS, piv txwv li, tus naj npawb aperture yog lub ntsiab dav dav f/1.8. lub telephoto lens ces muaj aperture f2.4.
ISO
Tus nqi ISO teeb tus qauv hauv lub ntiaj teb lub koob yees duab rhiab heev. Dab tsi siab dua koj teem lub rhiab heev ISO, Violet ntau yuav yog lub sensor teb mus rau qhov kaj. Nws tsuas txhais tau tias qhov siab dua tus nqi ISO koj teem, qhov ntau yuav yog cov duab tshwm sim meej dua. Nyob rau hauv cov ntaub ntawv no, koj yuav tsum tau ceev faj, raws li nrog rau lwm yam tseem ceeb, on raug teeb tsa. Yog tias koj teeb tsa ISO rhiab heev rau tus nqi siab heev tuaj yeem dhau los ua duab dawb, translucent canvas nrog ob peb streaks. Yog tias, ntawm qhov tod tes, koj teeb tsa ISO rhiab heev rau tus nqi qis dhau yuav muaj ib daim duab tsaus ntuj heev lossis dub. Nyob rau tib lub sijhawm, nws yog qhov yuav tsum tau coj mus rau hauv tus account tias los ntawm dab tsi siab dua ISO koj teem (nyob ntawm seb lub teeb pom kev zoo), qhov ntau koj yuav tawm tsam hauv qhov kawg suab nrov. Hauv kev xyaum, qhov no txhais tau tias koj yuav ISO tau xav txog ib puag ncig teeb pom kev zoo teeb tsa tsawg li tsawg tau kom daim duab zoo dua. Yog tias koj tua nyob rau hauv qhov tsaus ntuj nrog tus nqi siab ISO, lub suab nrov yuav tshwm sim hauv cov duab uas tshwm sim.
Dawb tshuav
Txawm hais tias lub tswv yim no tsis muaj feem cuam tshuam nrog daim duab peb sab, nws tseem muaj tseem ceeb heev. Qhov nyiaj dawb yuav tsum tau teeb tsa raws li qhov koj nyob. Nws yog ib hom dawb xim "calibration". - Piv txwv li, yog tias koj nyob hauv chav uas nws nyob teeb pom kev zoo, yog li cov xim dawb yuav tshwm sim xiav lossisdaj daj. Los ntawm kev ntsuas dawb, koj tuaj yeem "dhuav" qhov no tshem tawm. Cov kws yees duab feem ntau calibrate dawb tshuav nyiaj li cas los ntawm muab lub lens rau pem hauv ntej ntawm lawv ntawv dawb (los yog lwm yam uas yog dawb huv) thiab teem lub koob yees duab ua dawb tiag tiag.
Resume
Yog li kuv xav qhov thib peb ntawm peb series nws ua tiav qhov theoretical "kev qhia". Peb tau tham txog yam tseem ceeb uas koj yuav tsum paub txog kev yees duab. Hauv seem tom ntej, peb yuav saib tus yees duab tua nws tus kheej siv ib daim ntawv thov haiv Lub koob yees duab, tab sis kuj siv lub app tsaus ntuj, uas muaj ntau ntau txoj kev xaiv rau kev tuav lub koob yees duab teeb tsa. Sai li sai tau peb tau tshuab qhov tseeb yees duab tua nws tus kheej, peb nyob hauv tus ncej tom ntej no series cia saib yees duab kho tom qab kev tsim khoom, tshwj xeeb hauv daim ntawv thov Adobe Lightroom. Yeej yog ib phau ntawv xov xwm Apple picker cia saib kom koj tsis txhob nco ntau ntu thiab series. Txhua qhov chaw los ntawm series Professional iPhone yees duab tuaj yeem pom siv qhov txuas noon lwm series koj tuaj yeem saib tom qab ntawm no.
Nws yuav yog txaus siab rau koj
Amaya Toman 