Tam sim no peb paub qhov txawv ob hom koob yees duab - compact digital (nrov npe hu ua "soapboxes") thiab daim iav (nrov npe hu ua "SLRs"). Nrog tus thawj, nyob rau hauv tus coj, txhua leej txhua tus paub, tab sis dab tsi qhov kab lus "iav yees duab" txhais li cas? Tsis muaj dab tsi nyuab rau hauv no lub sij hawm, qhov tseeb, tsis muaj. Daim iav lub koob yees duab hu ua vim nws muaj qhov kev kho qhov muag pom kev, muaj ib qho mine uas muaj ib qho los yog ntau qhov tsom iav ntsia.
Feem ntau, qhov sib txawv ntawm lub koob yees duab SLR thiab lub koob yees duab digital zoo tib yam yog, ua ntej txhua yam, raws li cov duab tau txais. Qhov no yog vim li cas koj tuaj yeem hnov ib qho chaw "kev sib raug zoo" hauv kev sib raug zoo nrog SLR lub koob yees duab, vim cov kev pabcuam siv "SLR cameras", tawm hauv "soapboxes" rau kiv cua.
Tab sis cia wb los saib zoo li cas lub iav lub koob yees duab zoo dua li cov koob yees duab, thiab qhov loj dua tuaj.
Qhov zoo dua lub koob yees duab SLR?
Qhov zoo ntawm lub koob yees duab SLR yog qhov zoo tshaj plaws, tom qab tag nrho cov txheej txheem.
- Matrix . Yog li, qhov no yuav yog thawj qhov zoo tshaj plaws rau hauv daim ntawv. Txhua leej txhua tus paub zoo li no xws li lub megapixel, uas yog feem ntau hais nyob rau hauv kev yees duab kam. Yog tias peb coj nws mus rau hauv tus account, ces qee cov koob yees duab cia ua duab zoo tib yam li daim iav, tab sis qhov tseeb, qhov no, tsis yog rooj plaub. Feem ntau, megapixels tuaj yeem raug hu ua kev xav tawm kev lag luam tawm xwb. Vim li cas? Cia peb xam nws. Qhov tseeb, qhov zoo ntawm daim duab yog cuam tshuam tsis yog los ntawm cov xov tooj ntawm megapixels, tiam sis los ntawm qhov loj ntawm daim duab, uas digital lub koob yees duab muaj nqis tsawg dua daim iav dluab. Ntawm cov me me matrices "soapbox" manufacturers muaj peev xwm kom haum ib tug lossis loj tus nab npawb ntawm megapixels, tab sis nws tseem yuav tsis muab ib daim duab ntawm tib zoo li ntawm ib lub koob yees duab iav nrog ib tug loj matrix.
- Lub lens . Lub lens yog lwm lossis loj ntxiv rau ntawm "SLR lub koob yees duab", vim tias nws cov kev pab cov duab muaj tseeb dua. Tsis tas li ntawd, txij thaum yuav luag txhua tus SLR koob yees duab ua haujlwm nrog lub lens tawm, qhov no kuj muaj chaw rau kev muaj tswv yim.
- Kev ceev ntawm shooting . Lub koob yees duab iav tuaj yeem ua qhov nruab nrab ntawm tsib ntu ib pliag, uas yuav tso cai ntawm tag nrho cov kev txiav txim siab xaiv ib qho uas zoo tshaj plaws. Cov neeg lag luam cam hais tias cov koob yees duab digital kuj muaj peev xwm ntawm qhov no, tab sis zoo li megapixels, qhov no tsuas yog ib qho kev lag luam tawm. Cov koob yees duab siv yees duab, los ntawm qhov uas muab cov duab kos, qhov zoo tshaj uas tawm ntau yam yuav tsum tau ua, thiab daim iav thaij duab txhua lub thawv tawm nyias, uas yog, qhov zoo tshaj ntawm daim duab yuav tsum nyob rau theem siab tshaj plaws.
- Lub roj teeb . Thiab, ntawm chav kawm, lub roj teeb nyob rau hauv lub "SLRs" yog ntau ntau muaj zog. Tom qab koj them zoo lawm koj tuaj yeem ua tau txog 1000 cov duab, lossis ntau tshaj. Lub "xab npum" yuav tua tsis ntau tshaj 500 koob, uas yog, tsawg dua, thiab tom qab ntawd ces koj yuav tsum tau them tus koob yees duab.
Tab sis, ntawm chav kawm, muaj cuab yeej muaj flaws thiab ib lub koob yees duab iav yuav tsis muaj kev zam.
- Tus nqi . Nqe, kab tias, yog qhov biggest drawback ntawm SLR lub koob yees duab, vim nws muaj ntau ntau dua li tus nqi ntawm lub koob yees duab digital. Ntxiv mus, lo ntsiab muag ntxiv, yog tias koj xav tau lawv, yuav luag tib yam li lub koob yees duab xwb. Tab sis
vim hais tias rau qhov zoo ntawm daim duab koj yuav tsum tau them, tsis yog koj? - Qhov loj . Muaj coob tus kuj ntxhov siab los ntawm qhov loj ntawm lub koob yees duab, vim "SLR" tsis tuaj yeem raug muab tso rau hauv lub tsho lub hnab tsho coj mus yees duab rau kev taug kev. Kuv xav tau ib lub hnab tshwj xeeb .
- Complexity . Lub complexity ntawm lub SLR kuj yog frightening. Tab sis, qhov tseeb, thaum kawm txog phau ntawv qhia, nws kawm tau yooj yim li lub koob yees duab digital.
Nyob rau hauv dav dav, peb xam tau tawm li cas lub iav lub koob yees duab yog thiab dab tsi nws yog noj nrog. Thaum kawg, koj tuaj yeem hais tau yog tias koj tsis xav tau cov duab zoo dua thiab koj tsis npaj siab mus nrog kev yees duab, ces ib lub koob yees duab digital yooj yim rau koj. Tab sis, raws li ib txwm, qhov kev xaiv yog koj li.