Yuav ua li cas yog ib tug SLR koob yees duab?

Tshaj yav dhau los ob peb xyoos nyob rau hauv peb lub neej li dej nyab tsoo lub zam rau SLR koob yees duab. Raws li ib tug txoj cai, lawv yog ib tug nyob rau hauv peb, ib tug nyob rau hauv ob muaj ib cov koob yees duab yog zoo nyob rau hauv peevxwm los lub SLR. Tab sis, cuaj kaum, ntau yuav mus yuav nws-lens reflex koob yees duab, thiab rau ib txhia nws yog heev hnov li teeb meem. Nws yog vim li no peb coj koj no tsab xov xwm, yog li ntawd koj yuav tsawg kawg yog superficially to taub dab tsi ib reflex koob yees duab.

Tab sis ua ntej peb yuav mus rau xws li cov ntsiab yuav tsum to taub tag nrho cov kev xav tau los yuav kim khoom. Li cas nws tsis mus rau cov neeg? Lawm, yuav ua rau cov duab zoo nkauj nyob rau hauv qhov zoo tshaj plaws zoo. Rau ntau nws yog qhov uas tsis qhov muag liab liab, blurring, distortion thiab ntau lwm yam "dab tuag". Plus qhov zoo tshaj plaws zoo yog tseem tseem ceeb xws li cov high-ceev shooting, ib tug loj loj daim ntawv teev cov phau ntawv muaj nqis. Tag nrho cov no yuav qhia cov tswv ntawm xws li ib tug ntaus ntawv rau qhov chaw rau nws tus kheej-realization.

Yuav ua li cas mus xaiv lub koob yees duab? Daim iav los yog cov? Qhov no yog lub ntsiab qhov teeb meem. Nyob rau hauv ib tes peb tsis xav seb peb tus kheej raws li kev pab txog thiab yog li ntawd tsis yog yuav mus yuav ib tug kim koob yees duab, nyob rau lwm yam tes - tom qab ib tug thaum los to taub hais tias cov duab yuav ua tau zoo dua, thiab lub tsev nws tus kheej yog lub sij hawm mus txuas hnub nyoog. Muaj mob thaum ib tug neeg xav paub ua hauj lwm nyob rau hauv photography thiab tsis xav kom cia li yuav ib qho kim ntaus ntawv. Qhov tshaj plaws xwb koj yuav hais txog nws - yog hais tias lub venture tsis muaj dab tsi zoo yuav, piv txwv li koj yuav tau txais ib tug ob peb tsis tau phem thiab kev txawj ntse, los ntawm uas nws yuav nyuaj heev uas yuav tau tshem ntawm.

Heev feem ntau cov neeg nug cov lus nug ntawm yog dab tsi yog ib tug reflex koob yees duab. Muaj coob tus neeg tsis to taub heev lub hauv paus ntsiab lus ntawm cov lag luam ntawm cov ntaus ntawv thiab nyob qhov twg no lub npe tuaj. SLR koob yees duab tau txais nws lub npe los ntawm lub iav, lub lens qhia ib tug duab nyob rau hauv lub hauv paus ntawm lub periscope. Nws yog ib nqi sau cia hais tias ob qho tag nrho lub lens thiab rau hauv daim iav yog heev yooj yim, thiab thiaj li tus nqi ntawm lub koob yees duab yuav ncav cuag dizzying heights. Qhov no yog tshwj xeeb tshaj yog thaum ib tug txheej txheem paub cim nrog zoo heev yam ntxwv.

Nyob rau hauv tas li ntawd mus rau lub tsis meej pem raws li mus rau leej twg ib co koob yees duab yuav tsum tau, cov neeg feem ntau yam cov theem ntawm kev cov khoom siv. Kuv xav hais tias tag nrho cov division rau kev, semi-professional cov khoom siv thiab cov zoo li - tsis muaj ntau tshaj li ib tug li ploy. Txawm hais tias nws yog tsim nyog sau cia hais tias nyob rau hauv kev muaj tiag ntawm kev thiab pib xyaum ua SLR koob yees duab muaj yog ib tug txawv xwb nyob rau hauv lub xov tooj ntawm kev khiav dej num. Feem ntau cov feem ntau, lawv nyob twj ywm unclaimed, Yog hais tias cov koob yees duab yog nyob rau hauv lub ob txhais tes ntawm ib qho kev pib xyaum ua.

Yuav ua li cas yog ib tug SLR koob yees duab, koj thiab kuv tau sib tham txog. Thiab tam sim no, me ntsis mloog yog them rau ib qho ntawm lub ntsiab kev nyob rau hauv uas lub koob yees duab yog xaiv. Lub ntsiab yog ib tug koom lub lens. Nws yuav tsum tau muab sau tseg tam sim ntawd: Tsis txhob ntseeg cov neeg uas hais tias tus txheej txheem lo ntsiab muag yog phem thiab yuav tsum tau hloov tam sim ntawd. Frankly, txawm xyoo tom qab, ntau yog tag nrho cov tib pab kiag li lawm. Ntawm cov hoob kawm, yog tias koj npaj los ua ib tug kws, ces thaum lub sij hawm koj yuav to taub li cas koj yuav uas ploj lawm nyob rau hauv koj lub lens thiab dab tsi los pab koj yuav tsum yuav.

Ib qho tseem ceeb tshaj yuav yog tus matrix. Nyob rau hauv tej yam yooj yim cov ntsiab lus, cov matrix - yog tib yam li ib tug tsis zoo, tab sis nws tsis yog luam, thiab tam sim ntawd tso tawm kom pom ntawm qhov screen. Cov nyhuv no tshwm sim vim hais tias cov pixels. Dua - yog lub teeb-sensitive hlwb tias ua li tus matrix. Nws yuav tsum tau nco ntsoov tias cov xov tooj ntawm pixels tsis tau lees tias qhov zoo tshaj ntawm cov duab. Raws li ib tug txoj cai, lub pixels yog xam nrog rau cov prefix "mega", thiab, feem ntau zoo li, lub sellers yog xav ua kom tau mus yaum cov buyer xav hais tias qhov ntau ntawm lawv cov zoo dua. Nyob rau hauv qhov tseeb, koj muaj txaus 10-12 coj cov duab tsim nyog ntawm khoom plig. Thiab ces lub teeb meem no yuav ntshiab - nyob rau hauv lub koob yees duab yog ib qho tseem ceeb, tsis yog tus pixels thiab lub cev loj ntawm lub matrix. Raws li ib tug txoj cai, tus loj dua cov nws yog, qhov ntau lub teeb nws yuav nqus ib lub sij hawm, yog li ntawd, qhov ntau thiab zoo dua yuav tsum yog tus duab.

Tam sim no peb muaj muab tau lub caij nyoog txhais ntawm yog dab tsi yog ib tug reflex koob yees duab, los ntawm uas lub ntsiab qhov chaw ntawm nws yog, thiab dab tsi koj yuav tsum tau saib rau thaum muas. Thiab qhov luaj li cas yog tsis raws li ib qho tseem ceeb raws li tus nqi.

Thiab tam sim no yuav tham txog dab tsi raws nraim coj SLR koob yees duab. Xyuas ntawm no lub npe muaj heev contradictory. Tab sis, cuaj kaum, tsuas sau cov qhab nia uas muaj peev xwm thiab yuav tsum raug xam tias yog nyob rau hauv thawj qhov chaw.

• Canon;
• Nikon;
• sony;
• Olympus;
• pentax;
• Leica.

Mus rau saum nws tawm nws muaj nqis ntsoov teev hais tias cov thawj ob yam khoom nyob rau hauv daim ntawv teev yog cov feem ntau nrov tuam txhab uas muag nyob rau hauv feem ntau ntawm cov CIS lub teb chaws thiab lub qub Soviet Union. Qhov no yog vim lub fact tias cov kev xaiv rau ntxiv cov ntsiab lus, thiab xwb cov khoom kab yog npaum li cas wider thiab cheaper dua tus so.