Cov Koob Yees Duab Digital (29 Duab): Nws Yog Dab Tsi? Lawv Txawv Li Cas Ntawm Cov Koob Yees Duab Zaj Duab Xis? Cov Cuab Yeej Thiab Txoj Hauv Kev Ua Haujlwm, Xaiv Thiab Faib Tawm

2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2023-12-16 05:41

Nws yog qhov tseem ceeb rau txhua tus neeg niaj hnub no kom nkag siab tias lub koob yees duab digital yog dab tsi thiab yuav xaiv cov cuab yeej zoo li cas rau kev tua. Cov cuab yeej zoo li no yuav muaj txiaj ntsig zoo nyob hauv tsev thiab hauv ib nrab kev tshaj lij. Yog li ntawd, nws tsim nyog kawm txog lawv cov yam ntxwv, hom xov xwm, kaw cov txheej txheem, nrog rau txheeb xyuas cov npe ntawm kev hloov pauv nrov.

Nws yog dab tsi?

Nws yuav zoo li lub luag haujlwm ntawm lub koob yees duab digital tau ua tiav los ntawm lub xov tooj smartphone lossis ntsiav tshuaj. Txhua lub xov tooj ntawm tes tau muaj lub koob yees duab built-in, thiab feem ntau yog nruab nrog ob lub ntsiab lus tua . Txawm li cas los xij, cov cuab yeej sawv ib leeg yuav zoo dua li ib qho tsim nyob rau ib qho, txawm tias tom kawg tau tsim los ua lub xov tooj zoo. Qhov sib txawv yog qhov pom tau txawm tias piv nrog cov neeg siv khoom-qib cov koob yees duab. Tab sis nws tsis yog qhov ntawd xwb.

Cov cuab yeej siv duab ib leeg yog qhov yooj yim dua thiab ruaj khov rau siv . Koj tuaj yeem tua yam tsis muaj kev ntshai uas hu sai lossis tsis raug nias lub pob nyem yuav cuam tshuam nrog txheej txheem. Ib qho ntxiv, kev tswj tus kheej lub koob yees duab yog qhov yooj yim dua li kev tswj cov vis dis aus ntawm lub xov tooj smartphone. Thiab ib qho ntxiv kom zoo dua - cov koob yees duab yees duab ua rau koj xav. Lawv cov tswv tsuas yog yuam kom nkag siab qhov txawv ntawm kev tua, kho, cuam tshuam, tawm tswv yim. Qhov no yuav yog qhov zoo rau cov uas xav txhim kho thiab tsis sawv ntsug lossis ua kom puas.

Tab sis koj yuav tsum nkag siab tias coj cov vis dis aus mus rau qhov zoo lossis zoo saib zoo yuav tsum siv sijhawm ntau. Yog li ntawd, lub koob yees duab yuav maj mam qhuab qhia nws cov tswv. Lawv yuav tau xaiv kom meej meej li yuav ua tau dab tsi tua, qhov twg, yuav ua li cas thiab rau dab tsi, thiab tsis yog nias lub pob ntawm thawj qhov lus teb. Yog li, qhov kev xaus dav dav yog: lub koob yees duab digital tsis yog khoom ua si.

Ua ntej yuav lub koob yees duab yees duab, koj yuav tsum tau nug koj tus kheej seb puas muaj sijhawm txaus thiab muaj peev xwm, koom haum thiab tsom mus rau tus tswv txhua qhov txuj ci tsim nyog, puas muaj nyiaj txaus rau kev yuav khoom ntxiv.

Ntaus thiab txoj hauv kev ua haujlwm

Txawm hais tias lo lus teb rau cov lus nug yav dhau los tsis zoo, nws yog qhov tsim nyog rau kev txhim kho dav dav kom nkag siab tias lub koob yees duab digital ua haujlwm zoo li cas. NROG Cov qauv ntawm lub lens thiab txoj cai kho qhov muag uas tswj hwm nws nyob ntawm no ib yam li cov koob yees duab ntxov tshaj plaws, uas tau tshwm sim xyoo 1830s . Qhov sib txawv tshwm tsuas yog hauv cov duab tau txais. Thaum lub teeb ci dhau los ntawm lub lens, nws tsoo lub matrix. Muaj cov ntiv tes tau tsim, uas tau hloov pauv mus rau lub cim xeeb tas mus li.

Qhov kaw ntawm lub cuab yeej digital tuaj yeem ua tau raws li cov txheej txheem siv tshuab lossis hluav taws xob . Qee zaum cov kev daws teeb meem no tau ua ke. Nyob ntawm qhov nyiam ntawm cov tsim qauv, lub lens tau ua rau hauv lub cuab yeej nws tus kheej, lossis txuas ntxiv. Hnub no koj tuaj yeem yuav lub koob yees duab nrog ob lub tsev hlau thiab yas. Lub matrix yog tsim los ntawm cov lej loj ntawm cov tib neeg lub hlwb hu ua pixels.

Thaum lub teeb pom kev zoo tshwm ntawm qhov chaw ntawm ib lub xovtooj ntawm tes, lub kaw lus pib tsim hluav taws xob. Lub zog ntawm cov mem tes feem ntau yog sib piv rau kev siv lub teeb pom kev zoo. Txhawm rau tig daim duab dub thiab dawb rau hauv ib qho xim, siv RGB lim. Txhua lub xov tooj tau npog nrog lub lim dej ntawm tsuas yog ib qho xim. Lawv tau muab faib ua pawg ntawm 4 - thawj 2 ntsuab, tom qab ntawd 1 xiav thiab 1 lub lim dej liab.

Ntxiv mus, txoj haujlwm suav nrog:

• analog-rau-digital hloov pauv;
• CPU;
• RAM thiab nyeem ntawv nkaus xwb systems;
• modules lub luag haujlwm rau kev hloov cov ntaub ntawv.

Sib piv nrog lwm hom koob yees duab

Cov koob yees duab digital txawv ntawm cov koob yees duab tsis yog tsuas yog hauv txoj hauv kev kom tau txais cov duab. Yog tias qhov no tshwm sim, tsuas yog cov kws tshaj lij yuav txaus siab rau qhov tshwj xeeb. Qhov sib txawv ntawm cov koob yees duab digital thiab cov koob yees duab sib piv yog thawj zaug:

• tiv thaiv zoo dua los ntawm kev cuam tshuam sab nraud;
• tuaj yeem xa lub teeb liab tsis yog ntawm cable, tab sis kuj tseem nyob hauv ntau yam wireless;
• ua haujlwm zoo dua nrog cov xov tooj tshwj xeeb tsis yog tshwj xeeb;
• muaj peev xwm tshaj tawm hauv Is Taws Nem thiab yooj yim txuas rau khoos phis tawj;
• muab daim duab ntawm qib siab dua;
• kim dua;
• yuav hla ntu me me thaum sau cia.

Qhov sib txawv ntawm zaj duab xis thiab cov koob yees duab digital yog tias txawm tias cov cuab yeej zoo tshaj plaws tsis tuaj yeem lav qhov kev daws teeb meem siab dua 1 megapixel . Cov khoom siv hluav taws xob niaj hnub lav tsis muaj teeb meem kom tau txais daim duab nrog qhov zoo ntawm 5 megapixels. Yog tias koj xav tau teeb tsa lub koos pij tawj video, tom qab ntawv teeb tsa IP system yuav yooj yim dua.

Lub tshuab zaj duab xis yuav tsum tau nruab nrog daim kab xev tsav. Cov kaw yuav tsum tau digitized ua ntej yuav xa nws mus rau lub PC.

Txheej txheem cej luam ntawm ntau yam

Nws yog qhov tsim nyog los pib kev faib tawm ntawm cov koob yees duab yees duab nrog cov qauv kev nyiam ua. Lawv yog cov pheej yig thiab tsis muaj kev hloov pauv qhov muag. Qhov zoo ntawm daim duab uas tau ntes hauv cov xwm txheej nyuaj tuaj yeem tsis zoo . Qhov loj thiab ua haujlwm ntawm lub microphone built-in qee zaum ua rau poob siab. Txawm li cas los xij, cov yam ntxwv ua haujlwm ntawm txawm tias feem ntau cov pib xyaum ua yog qhov tsim nyog.

Tab sis cov koob yees duab digital kuj tseem tuaj yeem yog chav kawm ib nrab ntawm cov kws tshaj lij . Feem ntau lawv muaj 3 tus neeg tuag nrog qhov tsawg kawg nkaus ntawm 0.25 ntiv tes. Qhov no tso cai rau koj nce kev ntseeg tau ntawm cov duab xa mus. Chav tsev hnyav 2-4 kg, yog li ntau tus qauv tuaj nrog lub tswm ciab. Feem ntau ntawm cov kaw lus mus rau cov xov xwm tshem tau.

Cov koob yees duab ua haujlwm yuav tsum tau hais sib cais. Nov yog lub npe ntawm cov cuab yeej siv me me hnav ntawm lub taub hau. Lawv tau siv los ntawm cov kis las (ob tus kws tshaj lij thiab amateurs). Cov txheej txheem zoo sib xws kuj tseem siv dav los ntawm cov vis dis aus bloggers. Nws yog tus yam ntxwv los ntawm:

• matrices nrog kev daws teeb meem ntawm 5-12 megapixels;
• saib cov ces kaum txog 170 degrees;
• muaj peev xwm sau cov duab hauv Full HD thiab siab dua;
• kev tsim nyog rau kev ua haujlwm ntev (2 teev lossis ntau dua).

Los ntawm hom vis dis aus

Oddly txaus, cov kab xev tau siv rau kev ua yeeb yaj kiab hauv ntau lub koob yees duab digital nqa tau niaj hnub no. Cov xov xwm no sawv tawm rau nws qhov peev xwm / tus nqi tsis tau pom dua MiniDV tuaj yeem sau txog 60 feeb ntawm daim duab. Koj yuav tsum tau them nyiaj rau daim kab xev li ntawm 125 rubles.

Ib qho tseem ceeb: tsis sib thooj rau qhov kev xav thoob plaws, tsis muaj "ib nrab digital", tab sis feem ntau cov ntaub ntawv digital tau sau tseg hauv kab xev.

Cov yam ntxwv zoo ntawm cov kab xev yog qhov cuam tshuam ntau los ntawm qhov ua tsis tau ntawm kev nkag ncaj qha mus rau ntu tshwj xeeb ntawm kev kaw cia - koj yuav tsum tau rov qab kaw daim kab xev. Cov xov xwm kim dua, xws li:

• HDD;
• laser txiav;
• flash phaib.

Los ntawm cov ntaubntawv povthawj siv hom

Compression pab txuag chaw cia. Kev thav duab ib leeg yog hu ua DV . Qhov sib piv sib piv hloov pauv txawm nyob hauv txhua tus ncej, nyob ntawm qhov nyuaj ntawm thaj chaw tshwj xeeb. Raws li qhov tshwm sim, tus nqi nruab nrab ntawm cov kwj dej tau hloov pauv - 25 Mb / s. Qhov loj ntawm cov thav duab yog 720x576 dpi.

MPEG-2 kuj tseem siv dav . Lub ntsiab lus yog nyob hauv kev xaiv cov thav duab tseem ceeb. Compression tsis yog hais txog cov duab lawv tus kheej, tab sis hais txog qhov sib txawv ntawm lawv. Qhov kev daws teeb meem no tau lees tias muaj duab zoo dua. Txawm li cas los xij, cov cuab yeej siv khoom siv tus nqi siab dua thiab qhov ua tau zoo poob ntau dua li ntawm miniDV. Cov ntsiab lus siab tuaj yeem muab los ntawm HDV, AVCHD tawm tswv yim (lwm txoj hauv kev xaiv yog qhov tsis tshua muaj neeg siv thev naus laus zis).

Cov qauv nrov

Rekam DVC 340 dhau los ua tus sawv cev tsim nyog ntawm qhov ntsuas ntawm cov koob yees duab zoo tshaj plaws. Kev daws teeb meem siab tshaj plaws yog 1920 x 1080 pixels. Tom qab ua cov digital, daim duab no nce mus txog 5 megapixels. Kev kaw cov duab yog ua tau ntawm SD, SDHC media.

Lwm yam tsis:

• muaj peev xwm ntawm kev tshaj xov xwm txog 32 GB;
• roj teeb muaj peev xwm 800 mAh;
• txuas nrog PC ntawm USB;
• kho lub teeb pom kev zoo;
• tag nrho Russified ntawv qhia zaub mov;
• matrix ntawm CMOS hom ntawv;
• shooting ceev txog 25 ntas ib ob.

Sony HDR-CX405 Handycam yeej tsim nyog saib ib yam nkaus . Lub koob yees duab tau nruab nrog cov duab ruaj khov. Hauv hom vis dis aus, kev daws teeb meem nce mus txog 1920x1080 pixels, hauv hom duab - 4032x2272 pixels. PAL, NTSC xim tshuab tau txais kev txhawb nqa. Kev kaw cov duab yog ua tau ntawm MS daim npav nco; koj tuaj yeem tua cov ntsiab lus tsawg kawg 1 cm ntawm lub lens.

Yog tias koj xav tau xaiv lub koob yees duab ib nrab kws tshaj lij, tom qab ntawd Sony PXW-X70 tuaj yeem yog kev daws teeb meem zoo … Nws tau nruab nrog lub matrix nrog kev daws teeb meem ntawm 14, 2 megapixels, kho qhov muag ruaj khov thiab kho qhov muag duab loj dua 12 zaug. Ua tiav cov vis dis aus los ntawm 480i txog 1080i, 1080p; 720p hom ntawv kuj tau muab. Cov duab raug kaw hauv SD, SDHC, MS Duo, SDXC phaib, thiab qhov hnyav tag nrho yog 0.9 kg.

Kev cog lus Panasonic HC-VX1 yog qhov tsim nyog rau siv hauv tsev . Sab hauv nws yog MOS matrix, muab 8.57 megapixels. Kev yees duab tua txog 4K daws teeb meem tau lees paub. Kev kho qhov muag pom nrog qhov zoo ntawm 24 yog qhov zoo nkauj; siv cov khoom siv digital, daim duab nthuav dav txog 70 zaug. Cov neeg siv yuav txaus siab nrog phau ntawv tsom mus rau hom, qhov loj me thiab tus nqi qis ntawm lub cuab yeej.

Yog tias koj xav tau xaiv lub koob yees duab me tshaj, nws tsim nyog them nyiaj rau Canon LEGRIA HF R88 . Lub ntsiab ua haujlwm tseem ceeb yog CMOS matrix. Cov neeg tsim qauv tuaj yeem ua tiav qhov kev daws teeb meem HD tag nrho. Kev nthuav dav qhov muag ntawm daim duab thiab qhov yooj yim ntawm lub interface kuj ua tim khawv pom zoo rau tus qauv no. Hom kev yees duab kuj tseem muaj.

Cov Lus Qhia Xaiv

Tab sis yooj yim xaiv lub me me lossis loj lub koob yees duab digital yog nyob deb ntawm qhov txaus. Cov qauv ntxim nyiam dua nrog kev sau cov ntaub ntawv ntawm lub hard disk . Nws twb tau txaus rau ntau teev cov vis dis aus kaw.

Nco ntsoov them sai sai rau qhov chaw kaw cov duab. Lub peev xwm ntawm DVDs tsuas yog txaus rau 20 txog 35 feeb ntawm cov vis dis aus zoo.

Flash tsav tsuas yog me ntsis zoo dua rau cov tsav laser hais txog kev muaj peev xwm cia . Tab sis tsis muaj qhov txav mus los, uas ua rau muaj kev ntseeg siab ntxiv. Ib qho ntxiv, qhov tsis lees paub ntawm cov khoom siv tshuab ua rau txo qis tag nrho ntawm cov khoom siv hluav taws xob.

Tseem ceeb: lub peev xwm ntawm cov roj teeb tseem tsim nyog saib xyuas.

Raws li rau cov ntaub ntawv kaw tseg, rau cov neeg siv ib txwm tsis muaj qhov sib txawv ntau ntawm lawv, tau kawg, txog thaum nws los txog rau kev kho qhov tob video. Hauv qhov no, AVCHD yuav tsum raug tso tseg, vim tias tsis yog txhua tus kws kho vis dis aus txhawb nws.

Kev daws teeb meem ntawm lub koob yees duab raug xaiv los rau hauv qhov chaw thiab yuav ua li cas koj npaj yuav saib cov kaw suab . Yog li, ntawm lub TV ib txwm muaj lub vijtsam ntawm 21 ntiv tes, HD-zoo ntawm daim duab yuav ploj mus. Txawm hais tias kab pheeb ces kaum yog 29 ntiv tes lossis tsawg dua, qhov xwm txheej zoo ib yam. Tab sis thaum ua haujlwm nrog cov kua ua kua loj thiab tshwj xeeb tshaj yog cov ntxaij vab tshaus ntshav, txhua yam txawv me ntsis.

Nws ua rau kev nkag siab me me tsom mus rau cov chaw tsim khoom lag luam. Txhua lub tuam txhab muaj nyob hauv lawv cov khoom sib txawv ob qho tib si zoo nkauj heev thiab tsis yooj yim ua qauv . Tib yam siv rau 3 CCD cov qauv. Lawv tsis qhia lawv tus kheej ib yam nkaus hauv txhua qhov xwm txheej tiag tiag raws li lawv xav tau. Lub koob yees duab hluav taws xob tseem ua lub luag haujlwm, uas yog "kev puas tsuaj" kev ua haujlwm pib los ntawm cov lej, lossis qee qhov ncua qhov xwm txheej.