Portrait lens thiab nws cov yam ntxwv
Portrait lens thiab nws cov yam ntxwv
Anonim

Raws li lub npe txhais tau tias, lub lens portrait yog ib qho uas siv los thaij duab thiab muab qee yam zoo rau tus kws yees duab. Qhov tseeb, txawm tias muaj kev ntseeg nrov, tsis muaj "portrait" lo ntsiab muag zoo li. Ntawd yog, cov neeg tsim khoom, thaum tso lub lens, tsis tshwj xeeb tsim nws rau txhua hom kev tua. Yog li ntawd, feem ntau muaj kev sib cav txog dab tsi yuav tsum yog qhov zoo tshaj plaws portrait lens. Qhov no kiag li tsis coj mus rau hauv tus account lub fact tias tag nrho cov kws yees duab tua nyob rau hauv sib txawv tej yam kev mob, txhua tus ntawm lawv muaj nws tus yam ntxwv sau ntawv thiab nws tus kheej ua ntej. Yog li ntawd, nyob rau hauv tsab xov xwm no peb yuav saib cov yam ntxwv ntawm lub lo ntsiab muag feem ntau siv rau kev yees duab portrait.

canon portrait lens
canon portrait lens
zoo tshaj plaws portrait lens
zoo tshaj plaws portrait lens
portrait lens
portrait lens

Qhov thawj thiab qhov tseem ceeb ntawm txhua lub lens yog nws qhov aperture. Aperture yog qhia los ntawm f marking, uas nqa cov ntaub ntawv hais txog qhov siab tshaj plaws aperture. Nws yog qhov yooj yim: qhov dav qhov aperture ntawm koj lub lens qhib, lub teeb ntau yuav ntaus lub matrix, ntau dualuminosity. Qhov me me ntawm tus lej f, qhov dav ntawm qhov aperture tuaj yeem qhib. Lub lens portrait yuav tsum muaj qhov aperture siab, uas yuav tso cai rau koj los tsim cov ntsiab lus ntse, uas yog qhov tseem ceeb heev hauv kev yees duab portrait. Piv txwv li, Canon EF 85mm f / 1.2 portrait lens yog suav tias yog ib qho zoo tshaj plaws hauv qhov no thiab ua tau zoo tshaj lwm tus.

Thaum xaiv lub lens portrait, nws yog ib qho tseem ceeb los txiav txim siab seb qhov focal ntev koj siv feem ntau.. Nws yog qhov paub zoo tias rau kev thaij duab nws yog qhov zoo dua los siv primes (piv txwv li lo ntsiab muag nrog qhov ntev focal ntev), es tsis zoom lo ntsiab muag, vim tias lawv muaj aperture loj dua vim tsis muaj lub lens thaiv lub luag haujlwm rau zoom. Ntau tus kws tshaj lij ntseeg tias lub lens portrait yuav tsum muaj qhov ntev ntawm 50mm thiab 200mm. Ntxiv mus, qhov ntev focal ntev muab qhov zoo nkauj bokeh ntau dua - tus qauv plooj - thiab txhais tau tias muaj kev ncua deb ntawm tus kws yees duab thiab tus qauv. Ntawd yog, yog tias koj tab tom tua hauv ib lub studio me, ces 200mm portrait lens tsis muaj txiaj ntsig rau koj. Koj tuaj yeem, tau kawg, xaiv lub lens zoom kom tuaj yeem kho qhov kev ncua deb ntawm lub koob yees duab mus rau tus qauv rau koj nyiam, tab sis siv nws yuav xav tau teeb pom kev zoo. Tsis tas li ntawd, lub lens zoom yog feem ntau kim dua li lub lens prime. Me, tab sis cov yam ntxwv tseem ceeb sib npaug yog qhov muaj cov duab stabilization thiab hom kev tsom. Cov duab stabilizer them nyiaj rau lub koob yees duab co, yog li nws yeej tsis mob. Kev tsom xam yog qhov nyuaj me ntsis. Nws yog qhov zoo dua, ntawm chav kawm, xaiv lub lens nrog ob hom kev tsom xam -phau ntawv thiab tsis siv neeg. Yog hais tias, cia peb hais tias, koj tau siv los siv cov kev taw qhia nkaus xwb, nws tseem tsim nyog nco ntsoov tias qee zaum qhov xwm txheej tshwm sim thaum nrhiav kev tsom xam tsuas yog ntev lossis tsis yooj yim.

Yog li ua ntej xaiv lub lens rau portraits, txiav txim siab seb koj npaj yuav siv nws li cas. Thiab, nyob ntawm seb koj xav tau dab tsi, ua qhov tseem ceeb rau koj tus kheej thiab txiav txim siab cov yam ntxwv zoo tshaj plaws. Qhov no yuav ua rau koj nqaim koj qhov kev tshawb nrhiav, thiab tsis txhob ua xyem xyav qhov tseeb ntawm koj xaiv.

Pom zoo: