Tshiab Sigma Quattro koob yees duab tshwj xeeb tsim thiab sensor

Sigma tau tshaj tawm cov koob yees duab tshiab ntawm cov koob yees duab compact, hu ua Quattro dp1, dp2, thiab dp3, txhua qhov sib txuam ntawm cov iav sib txawv tab sis sib txawv.

Txawm hais tias nws paub tias yog ib tus neeg nyiam tshaj plaws thib peb tog kho cov khoom lag luam rau DSLR koob yees duab, Sigma tseem tab tom ua nws cov koob yees duab. Cov cwj pwm txawv ntawm cov tuam txhab shooters muaj lawv cov APS-C sensors, uas yog raws li Foveon X3 technology.

Xws li cov ntsuas hluav taws xob siv peb nplooj ntawv ntawm pixels, txhua qhov sib txawv xim sib txawv. Qhov no txawv ntawm RGB thev naus laus zis pom hauv Bayer sensors. Lub koob yees duab Sigma DP Merrill tau txais kev pom zoo los ntawm kev ua lag luam thiab cov neeg siv khoom, tab sis nws yog lub sijhawm kawg los ua kom muaj chaw ntxiv rau lwm lub koob.

Sigma nyuam qhuav tau tshaj tawm cov tshiab "dp Quattro" tiam ntawm kev cog lus ntawm lub koob yees duab uas tuaj nrog Foveon X3 sensor tshiab. Lub tuam txhab hais tias cov koob yees duab tshiab yuav ntes cov duab ntxaum, nplua nuj, thiab cov duab zoo nkauj ntau dua li cov qauv qub, vim tias tag nrho cov duab yuav dhau los ua haujlwm ntawm kev kos duab.

Sigma tshaj tawm dp1, dp2, thiab dp3 Quattro compact koob yees duab nrog cov tshiab sensor technology

Qhov no yog li cas Sigma Foveon X3 sensor tshiab ua haujlwm. Nws tseem yog kev tshoov siab rau lub npe ntawm tus tshiab Quattro series ntawm cov koob yees duab compact.

Cov koob yees duab tshiab hu ua Sigma dp1, dp2, thiab dp3 Quattro thiab lawv txhua tus raws qhov siv tshuab ntsug cov xim sib cais. Nws muaj peb txheej txheej photodiode nyob saum ib leeg. Txhua tus ntes tau cov xim RGB sib txawv, yog li ntawd hues, qhov tseem ceeb, thiab chroma yog ntes hauv txoj hauv kev ntau dua.

Cov txheej saum toj kawg nkaus ntes 19.6-megapixel ntawm Cov ntaub ntawv xiav. Cov ntawv yog cais hauv plaub lub thawv ntawm 4.9-megapixel photodiodes thiab nws zoo li yog qhov tseem ceeb tshaj plaws ntawm lawv txhua tus. Cov ntsiab lus muaj sau nyob rau ntawm nruab nrab Ntsuab thiab hauv qab Cov khaubncaws sab nraud povtseg Liab, ob leeg tau ntes 4.9-megapixel nqi ntawm cov ntaub ntawv. Hais txog qhov uas, 4: 1: 1 tus qauv yog kev tshoov siab rau lub npe ntawm cov koob: "Quattro".

Cov txiaj ntsig yog 19.6-megapixel JPEGs ntawm cov khoom lag luam zoo, ua tsaug rau qhov tseeb tias Sigma dp1, dp2, thiab dp3 Quattro compact koob yees duab tsis muaj xim thiab tiv thaiv kev tsis zoo (kho qhov muag tsis dhau) cov ntxaij lim dej.

Cov koob yees duab tshiab Sigma Quattro tuaj yeem ntes 39-megapixel JPEG duab

Sigma dp2 Quattro koob yees duab tau ntim rau hauv tus qauv tsim tshwj xeeb, ib yam li nws cov nus muag. Lub koob yees duab tuaj yeem ntes JPEG cov duab ntawm 39.6-megapixel zoo.

Sigma tseem ntxiv qhov tshwj xeeb Super-High JPEG hom ntawm 39 megapixels, thaum 14-ntsis RAW cov ntaub ntawv tseem raug txhawb thiab lawv yuav muab 19.6MP + 4.9MP + 4.9MP ntawm cov ntaub ntawv.

Qhov tseeb hloov tshiab no muab 30% daws qhov teeb meem zoo dua, tab sis cov ntaub ntawv loj dua ntais dua li yav dhau los. Lub tuam txhab kuj tau tsim cov tshuab tsim duab tshiab, uas yuav ua cov ntaub ntawv kom nrawm dua thiab txawm tias xav tau lub zog tsawg dua.

Lub TRUE III ua cav tau hais txog tswj cov duab kom zoo tshaj plaws, yog li Sigma Quatrro koob yees duab tshiab yuav muab cov duab "nruab nrab-qib".

Sigma dp1, dp2, thiab dp3 Quattro tuaj ntim khoom tshwj xeeb

Sigma dp2 Quattro ncaws pob muaj 3 nti LCD npo nyob tom qab. Nws lub nraub qaum yog lwm zaj lus tim khawv txog qhov tawm ntawm-tus-qhov zoo tib yam kev tsim qauv uas yuav ua rau cov neeg yuav khoom siv coj los ua ob npaug.

Lub koob yees duab tshiab Sigma Quattro suav nrog peb qhov muag teeb sib txawv sawv ntawm 19mm, 30mm, thiab 50mm f / 2.8 lo ntsiab muag. Lawv yuav muab 35 hli sib npaug ntawm 28mm, 45mm, thiab 75mm, feem.

Tag nrho peb lub koob yees duab ua haujlwm muaj 3-nti 920K-dot LCD cov ntxaij vab tshaus sab nraub qaum, qhov siab tshaj plaws ceev ntawm 1 / 2000th ntawm ib pliag, ISO rhiab nruab nrab ntawm 100 thiab 6400, 9-lub zog autofocus system, thiab txhawb rau SD / SDHC / SDXC daim npav.

Lawv qhov hnyav sawv ntawm 395 grams, thaum lub qhov ntev sawv ntawm 161.4 x 67 x 81.6mm. Ntawm txoj kev nthuav dav nthuav dav, Sigma dp1, dp2, thiab dp3 Quattro muaj cov qauv tsim tawm zoo nrog lub cev ntev.

Hnub tso tawm thiab cov ntsiab lus nqi tsis tau muab qhia rau lub sijhawm. Txawm li cas los xij, lub tuam txhab yuav tshaj tawm cov ntaub ntawv ntxiv nyob rau yav pem suab.

Sigma dp2 Quattro tsis zoo li txhua yam uas koj tau pom dua tas los, tab sis nws tseem pom tias cov neeg yuav khoom siv yuav nws los tsis siv.