Lub tswv yim ntawm kev ua kom pom tseeb tom ntej txhais tau hais tias thaum lub hom phiaj tsom mus rau lub hom phiaj, lub lens npog dhau mus thiab qhov tob ntawm daim teb tau txav mus los. Raws li txoj cai, SLRs nrog high-aperture optics raug kev txom nyem los ntawm qhov no. Qhov no yog kaw lub voj kaw nrog cov lus qhia ncaj qha, uas tsis tas yuav tsum muaj kev kho kom haum, txij li qhov siab tshaj ntawm qhov sib txawv yuav sib haum mus rau qhov siab tshaj plaws ntawm cov duab hauv kev ua kom pom tseeb. SLR koob yees duab nyias muaj nyias lub teeb tsom teeb, yog li cov kab ke no xav tau kev sib dhos. Qhov uas tsis raug thiab qhia txog qhov pom tom hauv ntej.
Nws yog qhov tsim nyog
- - ntawv;
- - Tshuab Luam Ntawv;
- - khoos phis tawj;
- - Is taws nem sib txuas;
- - cov koob yees duab;
- - tripod.
Cov Lus Qhia
Kauj ruam 1
Txhawm rau ntsuas kev tsom rau pem hauv ntej, siv cov nplai tshwj xeeb nrog "pom". Koj tuaj yeem ua koj tus kheej - rub tawm cov nplai ntawm Is Taws Nem, luam tawm ntawm lub tshuab luam ntawv, nplaum nws ntawm cardboard thiab ua kev txiav kom ruaj khov. Tso lub koob yees duab tso rau saum rooj lossis kos. Teem dawb sib npaug rau ib daim ntawv thiab ib zaug txhaj tshuaj autofocus.
Kauj ruam 2
Muab cov duab nrog duab dav. Lov Lub Suab Stabilizer, yog nruab nrog. Xaiv lub ntsiab lus tseem ceeb hauv lub koob yees duab thiab ncaj qha lub koob yees duab kom cov dav hlau ntawm qhov tsom pom "pom" yog nyob rau qhov nruab nrab ntawm cov kab nrig kho qhov muag.
Kauj ruam 3
Xaiv qhov kev ncua deb kom cov kev sib cais ntog poob rau hauv tus ncej - siv lawv los ntsuas kev ua haujlwm ntawm afthofocus. Qhov cim tseem ceeb ntawm cov saib pom yuav tsum tsis txhob tawm ntawm lub hom phiaj nrog lub npoo me me. Teem ib lub npoo raws li qhov loj me ntawm lub cim nws tus kheej, vim hais tias cov ntsuas hauv cov ntsuas yog me ntsis loj dua li qhia los ntawm lub cim ntawm tus saib. Yog tias qhov qhia tau meej nyob tom qab ntawm qhov cim, tab sis nyob hauv thaj chaw sensor, ces lub koob yees duab yuav tsom rau qhov khoom tsis sib haum no.
Kauj ruam 4
Ntsuas autofocus. Nqa kom pom tseeb rau ib sab, taw ntawm phiaj, siv duab. Nqa siab rau lwm qhov kawg, sib tw, thaij duab. Rov ua ob peb zaug. Hloov mus rau hom kev tuav, tso kev pom tseeb thiab tig lub kauj tsom teeb saib xyuas tes kom txog thaum pom tseeb tseeb, thaij duab.
Kauj ruam 5
Yog hais tias lub lens tsis ntaus lub taw tes. Saib tus nqi ntawm DOF offset thiab lub lens plawg tus nqi los ntawm kev noj ob peb koob tshuaj. Qhov kev ncua me me yog suav tias yog ib txwm. Yog hais tias txoj kev tsom xam qhov systemically mus dhau ntawm tus nqi pom zoo, ces muaj lub hauv ntej kev tsom. Nws tsis yog lub lens nkaus xwb uas tuaj yeem plam, tab sis lub koob yees duab nws tus kheej. Yog li ntawd, yog hais tias autofocus plooj plooj, xam nrog kev sib ncag.
