Coj koj cov txuj ci photography mus rau qib tom ntej
Thaum nws tawm los rau lub ntsiab muag dav hlau, qhov tseem ceeb tshaj plaws yuav tsum tau saib rau hauv yog lub focal ntev, uas yog nyob hauv millimeters. Feem ntau cov ces kaum tau txhais tias muaj lub focal ntev ntawm 35 hli los yog luv dua, thiab tej zaum yuav yog cov lauj kaub los sis zoom. Tab sis ua ntej koj nqaim hauv focal ntev koj xav tau, koj yuav tsum xyuas kom tseeb tias nws yeej phim koj lub koob yees duab, uas tej zaum yuav los yog tsis tau tshaj ib yam lens. Thaum twg koj tau squared ntawd tseg lawm, koj tuaj yeem pib ua tib zoo saib xyuas dua, zoo ib yam li prime los yog zoom, autofocus hom thiab qhov chaw qhib qhov ncauj. Hauv qab no, peb tau sau cov npe ntawm qee qhov zoo tshaj plaws lub lens rau Canon , Nikon thiab lwm yam koob yees duab.
Ib yam yees siv ua ke ntawm kev lag luam zoo heev thiab lub teeb pom kev zoo, lub Canon EF 16-35mm f / 4L yog USM lens yog ib qho kev xaiv zoo rau Canon DSLR cov tswv. Incorporating Optical Image Stabilization, tshwj xeeb coatings los txo cov ghosting thiab ob qho UD cov ntsiab lus kom txo cov duab aberrations, cov Canon ntxiv sab hauv siab thiab ntiv qis USM rau qhov tseeb thiab sai pib tsom. Kev ua kom lub sijhawm rau lub sijhawm ua haujlwm puv sijhawm tseem muaj nrog yam tsawg ntawm 0.92 ko taw ntawm tag nrho cov duab khawm ntawm lub lens.
Ua rau tag nrho cov huab cua puag, no Canon lens yog hmoov av thiab dej-resistant, uas ua rau nws ua tau zoo nyob rau hauv kev txawj thiab tus neeg siv dag zog txhua lub sijhawm. Tshaj li tiv thaiv cov ntsiab lus, cov lus qhib ntawm Canon lens thiab nws cov cuaj pwm pub rau kev zoo nkauj, muag duab tom qab.
Kev txheeb xyuas nws cov kev ua tau zoo thiab cov duab pom hauv qhov tseem ceeb tshaj plaws ntawm teeb pom kev zoo thiab kev yees duab. Ntawm 1.4 phaus xwb, Canon EF 16-35mm lens yuav ua sai sai tau mus-rau Canon DSLR tswv nrhiav qhov zoo tshaj plaws hauv cov duab thaij duab.
Ib tug mus-mus xaiv rau ntau Canon DSLR tswv, lub EF S 10-22m f / 3.5-4.5 muaj kev sib txuas ntawm cov duab zoo thiab affordability uas ua rau nws zoo kawg xaiv rau ib lub lens niaj hnub. Incorporating ib qho chaw kho qhov muag stabilizer, superior autofocus thiab ib lub sijhawm ua haujlwm puv nta nrog ib qho yooj yim tig ntawm lub nplhaib ntxiv roj rau qhov hluav taws kub tias qhov no Canon lens yog ib tug yuav tsum muaj.
Tsawg kawg nkaus ntawm 9.5 ntiv xwb rau kev ua tib zoo xav, cov ntsiab lus me me li 3.6 x 5.4 ntiv tau ua tus ncej. Lub compact me me kuj muaj qhov lens uas 0.85 phaus, uas ua rau nws muaj ntau tshaj lub teeb txaus mus nqa ib ncig ntawm lub hnab. Lub qhov dav ntawm lub focal ntev ntawm no lens yog khi rau kev ntxim siab txawm kev cob qhia nrog ib qho kev sib piv rau lub 16-35mm zoom. Qhov peb qib lens hais, Super-UD keeb thiab lub suab nrov hom USM txhua yam pab kom muaj kev zoo nkauj zoo nkauj.
Thaum nws tsis muaj qhov chaw ruaj ntseg tsim, lub teeb tsim yuav tsum pab kom qhov lens no khov kho nyob rau hauv koj txhais tes li koj tau thawb kev txhaj tshuaj ntawm ib tug kab tshoob, kev sib tw ntaus los yog ib daim duab thas nyob hauv lub chaw ua si national.
Ib lub zoo lens yog ib qho nyuaj rau kev nrhiav ntawm pheej yig, thiab yog tias koj tswj kom nrhiav tau ib qho, koj xav kom koj tsis yog qev rau hauv ib yam dab tsi uas yuav ploj nyob rau hauv ib txhia lub hlis. Yog li ntawd, thaum koj tham txog "nyiaj txiag" lo ntsiab muag, koj tuaj tiag tiag txog ntawm nqe ntau txog li ntawm $ 150 mus txog $ 200. Cov ntawm no lo ntsiab muag, Nikon AF-S DX NIKKOR 35mm f / 1.8G lens yog qhov zoo tshaj plaws nyiaj txiag ntau-lens koj nrhiav tau Nikon koob yees duab. Nws tau txais ib qho dav dav-kaum focal ntev ntawm 35mm, uas zoo sib xws ntawm tib neeg qhov muag. Qhov ntawd txhais tau hais tias cov duab yuav qhia tau lawv tus kheej ncaj rau ntawm koj lub siab-uas yog, ntawm chav kawm, yog tias koj paub tias koj ua dab tsi. Qhov lens no kuj muaj qhov siab tshaj plaws ntawm f / 1.8 thiab yam tsawg kawg ntawm f / 22. Muaj ib qho ultrasonic autofocus (AF) lub cev muaj zog nrog lub sijhawm tas mus li. Thiab tag nrho cov khoom yuav nrhiav tau rau hauv qis dua $ 200.
Rau qhov zoo tshaj plaws ultra wide-angle kev kawm muaj hnub no, lub Sigma 8-16mm f / 4.5-5.6 DC HSM FLD AF yog tus xaiv zoo heev rau Canon, Nikon, Pentax thiab Sony DSLR cov tswv. Lens one-of-a-kind lens, lub Sigma yog thawj zaug kom muaj tsawg kawg nkaus focal ntev ntawm 8 hli xwb. Tsim tawm nrog APS-C duab sensors nyob rau hauv lub hlwb, lub lens muaj sib npaug ntawm saib ntawm 12-24 hli lo ntsiab muag.
Integrating Sigma tus tshiab FLD iav ntsiab lus, lub lens pab nyiaj rau xim aberration thiab xim kho thaum ua tau zoo tshaj plaws cov duab tau zoo thoob plaws hauv nws txoj kev zoom tag nrho. Cov menyuam kawm ntawv ntawm HSM tau tso cai rau kev siv autofocus rau ob leeg neeg kho tshuab thiab phau ntawv nrog yam tsawg kawg nkaus nrhav ntawm 9.4 nti ntawm ib qho kev kawm.
Thaum kawg, Sigma tau tsim ib lub lens uas kawm tau zoo nyob rau hauv toj roob hauv pes shooting, capturing architecture, tsev interiors, photojournalism, kab tshoob photography thiab ntau ntau. Qhov hnyav 1.22-phaus thiab 4.17 nti ntev nws ua kom nws compact thiab portable, ces nws haum zoo kawg nkaus hauv hnab ntim lub hnab, hnab ev khoom los yog lub koob yees duab koob yees duab.
Yog hais tias koj xav tau mus ntes tau lub maj maj qhov chaw ntawm Grand Canyon los yog lwm qhov chaw ncig saib, koj yuav xav tau lub lens ultra wide-angle, uas feem ntau txhais raws li lub lens nrog lub focal ntev luv dua 15 hli. Rau Nikon shooters, muaj lub Sigma 10-20mm f / 3.5 ex DC HSM. Qhov kev ruaj ntseg ntawm qhov ruaj khov thiab super luv focal ntau ua rau nws zoo nkaus rau kev ua hauj lwm thiab architecture, tab sis nws kuj yog ib qhov zoo haum rau cov tub txawg shooting portraits. Nws tau txais lub siab-sonic lub cev rau kev ntsiag to thiab super ceev ceev autofocus, zoo li ib hom tsiaj hood uas thaiv tawm ntxiv lub teeb thiab txiav rau sab hauv. Nws yog ib chav nruab nrab ntawm lub lens zoo, tab sis cov cuab yeej cuab tam qab cov khoom siv me me no yog qhov tseeb kom pom tau tias txawm yog cov neeg thaij duab tshaj plaws. Tseem muaj cov qauv rau Canon, Pentax thiab Sony DSLRs. Nws yuav tsis yog ib qho zoo mus-rau, tag nrho-lub hom phiaj lens, tab sis nws yeej yog ib qho kev zoo siab rau kev sau cov qoob loo loj hlob.
Lwm pob nyiaj-hauv kev xaiv rau Canon shooters, lub EF-S 24 hli f / 2.8 STM yog ntau yam rau lub dav-angle qeb. Nws tau txais focal ntev ntawm 24 hli thiab qhov siab tshaj plaws ntawm aperture ntawm f / 2.8. Nws yog qhov slimmest thiab lightest lens hauv EF-S series ntawm Canon lo ntsiab muag. Nws kuj muaj kev tsom-phom ntev-puv sij hawm thaum nyob hauv Ib Hom Tshuaj Tiv Thaiv AF (autofocus) hom. Nws ua cov duab zoo nkauj nrog lub autofocus ceev, thiab nws txaus txaus kom haum rau hauv ib lub hnab pob khoom. Tus nqi yog xws li koj tsis tas txhawj txog kev khwv nyiaj yuav khoom, tshwj xeeb tshaj yog tias koj yog ib tus kws tshaj lij tus kws yees duab nrog ib qho khoom siv lens uas nws kim heev. Xav txog qhov no yog kev xaiv khoom yog tias koj yog Canon shooter tab tom nrhiav koj tus thawj lub lens wide-angle, tab sis koj tsis xav siv nyiaj ntau heev.
Sigma upgraded nws twb celebrated Mark II premium wide-angle zoom lens nrog tus tshiab Art tsab. Lub lens kev ua si qis dispersion iav nrog lub multilayer txheej uas minimizes distortion thiab theem tawm hauv feem ntau hauv kev sib piv. Lub lens kuj tseem ua tau, nrog cov tshuaj fluorine thiab pem hauv ntej thiab nram qab sib txuas nrog rau cov huab cua sib khi.
Kev hloov tshiab loj yog hloov qhov aperture los ntawm af / 4-5.6 kuj sib txawv ntawm qhov kev ntsuam xyuas mus rau qhov f / 4, uas, nrog rau ntau txoj kev kho qhov muag, tsim tawm cov kabmob zoo nkauj. Txij li thaum nws muaj f / 4 aperture thoob plaws lub zoom ntau, nws yog ib tug tag nrho nres zog dua li ua ntej uas cov kev pab cuam kev pab cuam kev pab cuam sai shutter ceev uas zoo rau qhov thiab lub nroog photography. Lub lens muaj txog li 4.9 x magnification, nrog Hyper-Sonic Tsav tshuab tso cai rau kev ntsiag to thiab ceev autofocus txawm tias thaum capturing dluab nyob ze.