Raws li nrog rau ib yam khoom yog xaiv

Thaum ib tug novice yees duab ntau dua los yog tsawg kawm yuav ua li cas siv lub koob yees duab, nws pib xav ib yam dab tsi ntxiv. Yuav kom txhim kho txoj kev zoo ntawm lawv cov chaw ua hauj lwm thiab ntxiv kev loj hlob nws tej zaum yuav txiav txim siab mus yuav tau ib tug tshiab optics. Tam sim ntawd ua ntej tus kws yees duab ib tug teeb meem li uas lens yog zoo dua. Lub lag luam yog tej nrog ib tug ntau yam ntawm cov qauv nyob rau hauv ntau yam nqi yog hom twg, tab sis ua li cas koj txiav txim seb koj xav tau?

Ua ntej ntawm tag nrho cov, koj yuav tsum txiav txim siab seb koj xav kom mus tua. Qhov no yog tiag tiag ib qho tseem ceeb raws li feem ntau cov kev lo ntsiab muag yog muaj zog nyob rau hauv tej kev ntsuas, tab sis yog tsis haum rau tag nrho cov hom phiaj. Yog li ntawd, ua ntej koj txiav txim siab uas lens xaiv, txiav txim siab rau koj tus kheej li cas koj xav tau los ntawm nws.

Xav tias koj xav mus tua close-up khoom. Qhov no yuav tsum tau optics uas yuav muaj ntau zaus ua rau kom cov kev kawm, tsim ib tug zoo nkauj tom qab plooj. Thiab qhov no yog ib qho tseem ceeb kauj ruam nyob rau hauv kev txiav txim uas kwv yog xaiv. Yuav kom haum Nikon qauv NIKON AF-S 105 hli f / 2,8, uas vim nws cov high rhiab heev muaj peev xwm tsim ntse thiab high-zoo dluab ntawm tej khoom me me. Yog hais tias koj xav nyob rau hauv yuav ua li cas xaiv ib tug lens Canon, lub analogue yuav Canon EF 24-105mm f / 1,4, uas muaj kwv yees li tib yam tsis, tab sis tsis yog ib tug kho.

Thaum xaiv ib tug lens , xav txog nws luminosity. Qhov no yog qhov tseem ceeb tshaj plaws kho qhov muag tivthaiv, thiab nws yog feem ntau xav muaj feem xyuam rau cov duab zoo. Yog hais tias ua tau, sim xaiv ib tug ceev ceev lens, hais txog ntawm lawv cov hom phiaj. Nws tau tsis tau lub sij hawm los pab koj tawm nyob rau hauv ib qho xwm ceev qhov teeb meem no, ntxiv rau muab ib tug me ntsis lawm nyob rau hauv daim ntawv ntawm ib tug zoo nkauj bokeh (plooj daim duab).

Kev txiav txim siab uas lens xaiv, them mloog mus rau lub focal ntev. Lo ntsiab muag los ntawm tsawg tshaj li 50 hli no yog wide-angle. Tus me dua cov focal ntev, ntau dua qhov lub distortion (distortion ntawm txoj kab). Tej qauv no yog siv rau ua hauj lwm, panoramas ntawm lub interiors.

Qauv ntawm focal lengths los ntawm 50 mus rau 80 mm yog zoo suited rau noj portraits. Yog hais tias koj npaj yuav coj cov duab nyob rau hauv ib tug me me chav tsev, koj tsis fits 50 hli optics. Yog hais tias koj muaj lub sij hawm yuav tawm mus deb ntawm ib tug qauv rau ib tug deb deb, thiab koj yuav xaiv tus lens 80 mm, uas muab ib tug zoo plooj.

Yog hais tias koj tsis paub dab tsi tus kwv yog xaiv rau tshwm sim los shooting, yuav tsum muab xav ib tug qauv nrog ib tug focal ntev ntawm 100-200 hli. Lawv yog cov tseem haum rau macro-khoom los ntawm qhov uas ntau nce.

Muaj lo ntsiab muag nrog phau ntawv thiab tsis siv neeg kom pom tseeb. Yog hais tias koj twb koom nyob rau hauv ib tug yees duab, koj yuav tsum tau txiav txim siab uas ib tug yog ntau yooj yim rau koj. Ib tug novice yuav tsum siv optics, qhov twg muaj ob hom ntawm kev tsom xam.

Lwm ntawm kev tsis uas yuav pab tau los txiav txim uas lens xaiv, - tus xub ntiag ntawm cov duab stabilizer. Nws yog tsim los rau smoothing thiab softening koob yees duab co. Tshwj xeeb yog pab tau nyob rau hauv cov lo ntsiab muag nrog ib tug loj focal deb. Thiab yuav tsis muaj superfluous, Yog hais tias koj nyob nraum shooting tsis muaj ib tug kos.

Tom qab nyeem ntawv cov tsis, koj yuav tau npaj mus rau cov kev xaiv ntawm lens.