Lens Canon EF 135 hli f / 2L USM rau embody cim photographic tswv yim

Tej kev thiab semi-professional thiab pib xyaum ua photography, thiab feem ntau nyob rau hauv ib tug niaj hnub SLR koob yees duab yog nqa tawm nrog kev pab los ntawm ib tug zoo lens. Rau Canon koob yees duab nws yog pom zoo kom yuav lo ntsiab muag ntawm lub tuam txhab tib. cov ntaubntawv povthawj siv zoo nyob ntawm ntau yam tseem ceeb. Qhov tsab xov xwm deals nrog lub lens Canon EF 135mm f / 2L USM, uas tau tsim muaj nws tus kheej ntawm cov amateurs.

General cov yam ntxwv ntawm lub lens

Ib tug zoo kws yees duab yuav tsum khaws tsis tau tsuas yog high-quality khoom, raws li nws yog ib tug uas yuav nplua nws. Nyob rau hauv kev tshawb fawb ntawm kev pab kev kawm ntawv. Ntawm cov hoob kawm, tus novice thiab pib xyaum ua nuj nqis nyob rau hauv lub tsis, tsis muaj dab tsi yog hais tias. Tshwj xeeb tshaj yog rau cov neeg no yuav tsum yog tus feem ntau mus siv cuag piav tag nrho cov khoom. Canon EF lens 135 muaj cov nram qab no nta:

• Lens hom - telephoto. Nws yog tsim rau shooting ntawm tej khoom uas yog cov nyob deb deb ntawm tus kws yees duab. Piv txwv li, ib tug huab cua qhia tau tias, lub chaw ntau pob, hais kwv txhiaj. Nws yuav tsum tau muab sau tseg hais tias qhov no tus kwv belongs rau ib taag, uas yog los mus hloov lub focal ntev tsis tau. Yog li ntawd, tus kwv yog nyob rau hauv tus ncej raws li xav tau, yuav tau khiav nyob rau hauv kev tshawb fawb ntawm ib tug zoo qhov chaw.
• Focal rasstonie - 135 hli. Nws yog ib cov nuj nqis qhia yuav ua li cas nyob deb koj yuav tau ua thiab yog dab tsi cov khoom nws yog advisable kom muab cov duab. Lub ntev lub focal deb, lub zog tus kwv nyob rau hauv lub chamber yog nce. "Telephoto" nrog ib tug focal ntev ntawm 400 mm tau tua txawm lub Craters rau lub hli. Txhua yam hauv qab no 100-120 hli, koom mus rau ib tug telephoto (tshwj tsis yog rau zoom lo ntsiab muag).
• Aperture - F2. Qhov no parameter yog qho tseem ceeb heev rau ntes, tshwj xeeb tshaj yog nyob rau hauv lub chav thiab nyob rau hauv huab cua. Yuav ua li cas yog qhov kev xaiv no? Aperture. Beginners yuav zoo li hais tias tus paub ntau tshaj qhov F, lub zoo dua. Nyob rau hauv qhov tseeb no yog ib tug yuam kev. Yog hais tias cov ua hauj lwm aperture nyob rau hauv lub lens yog ntau tshaj 2, ces tus ntas yog feem ntau ntawm cov neeg pluag zoo, nws yog tsim nyog los siv ib qho ntxiv flash. Rau photography nyob rau hauv kev ncaj ncees huab cua thiab haum lo ntsiab muag nrog F 3,5-4. Lens Canon EF 135mm f / 2L USM ua nws tau mus coj ib tug daim ntawv ntsuam xyuas nyob qhov twg, vim hais tias nws aperture tso cai rau nws.
• Kho - Canon EF. Yog hais tias koj yuav lo ntsiab muag tsuas Canon, ces kho yog tsis tseem ceeb. Tab sis nyob rau hauv txoj kev kawm thiab cov kev xaiv ntawm lub lens ntawm lwm hom (Sigma, Tamron, Zeiss thiab lwm tus) yuav tau saib kom zoo zoo rau dab tsi lub koob yees duab yog tsim los. Muaj kev zam rau cov Canon, thaum nyob rau hauv lub "cev" yog ib hom ntawm fastening EF-M.
• Autofocus - muaj. Qhov no yog ib qho tseem ceeb heev parameter. Yog tsis muaj nws, yuav tsis feem ntau txawm coj cov duab ntawm cov tub txawg. Qhaj ntawv ntawm AF yuav ua tau tsim txom. Technician tam sim ntawd nco qab lub hom phiaj ntawm qhov muaj tseeb thiab twb paub lawm tias sim mus kho cov kom pom tseeb - nws yog tib yam, dab tsi mus nrhiav ib rab koob nyob rau hauv ib pawg ntawm qhuav nyom.

Nyob rau hauv kev, hais txog lub Canon EF 135 yuav tau hais tias lub lens yog zoo meej nyob rau hauv tej shooting tej yam kev mob. Koj muaj peev xwm tsis txhawj txog dab tsi rau hauv lub chav yuav tsum tau teeb. Nyob rau lub koob yees duab, koj siv tau cov phau ntawv chaw tsis muaj ib lub eeb.

shooting kev xaiv

Tag nrho lo ntsiab muag muaj qhov tsim nyog kho qhov muag kev kawm ntawv. Tab sis raws li ib tug txoj cai, lawv yog sib xyaw. Piv txwv li, ib tug ntau-angle lens nrog ib tug focal ntev ntawm 18 hli lub kaum sab xis yog txaus loj, thiab nyob rau feem ntau haib "telephoto" - qhov tsawg tshaj plaws. Canon EF lens 135 hli muaj cov nram qab cov yam ntxwv:

• Saib lub - 18 ^{nyob rau hauv.} Telephoto, qhov no daim duab no me me. Piv txwv li, rau cov loj lo ntsiab muag nrog ib tug me me focal ntev yog loj tshaj lub, nws yog ua tau rau cov duab ib tug loj tus phooj ywg pab pawg neeg, ib tug zoo nkauj toj roob hauv pes. Ib tug telephoto lens yog tag nrho toj roob hauv pes yuav tsis tshuab, txawm tias qhov kev ncua deb yuav ua tau peb Christmas ntoo thiab birch ntoo rau ntawm ob sab.
• Kom pom tseeb nyob deb li cas -. 90 cm nyob rau hauv loj heev photography muaj uas tso cai rau koj mus tua me me khoom, kab nyob rau hauv lub paj, xov tooj cua, snowflakes. Tab sis tus tsom xam deb rau tej khoom yuav tsum ntau tshaj 90 cm. Cias muab, "tele" tsis yog yuav mus ntes tej khoom me me thiab kab.

lwm cov ntaub ntawv

Oddly txaus, tab sis cov sab nraud tsis xav xwb nyob rau hauv kev txiav txim los mus txiav txim qhov luaj li cas, cover qauv rau cov koob yees duab nrog lub lens Canon EF 135 thiab, ntawm chav kawm, yog hais tias muaj yog ib tug twb tau lub hnab los yog nqa cov ntaub ntawv, cov tseem ceeb tshaj plaws tuaj tag nrho.

Sab nrauv nta xws li:

• Xov txoj kab uas hla rau xim lim - 72 hli. Qhov kev xaiv no yog tsim nyog nyob rau hauv thiaj li yuav
• yuav ntxiv cov ntxaij lim dej rau lub lens, raws li zoo raws li lub tshiab kev tiv thaiv cover, yog hais tias tus thawj yog poob los yog tawg.
• Qhov ntev - 82,5 hli txoj kab uas hla, 112 mm - ntev. Feem ntau kev mloog lus rau qhov ntev ntawm lub lens los mus txiav txim lub hnab los yog wardrobe lub cev rau cov koob yees duab. Cov poj niam thiab cov ntxhais yuav confuse lub tag looks, yog hais tias lawv pom ib tug loj lens, thiaj xav ua kom tau slimmer.
• Nyhav - 750 grams. Qhov no kuj siv rau tej neeg uas yuav mus ua hauj lwm nrog hnyav machinery, kom nws nyob rau hauv lub cev tsis kho ob txhais tes. Nws yuav tsum tau nco ntsoov tias yuag tag nrho ntawm lub "tuag thiab lub hom phiaj" yuav tsum raug xam tias yog, tsis yog ib tug tshaj plaws.

ntxiv zog

• Ultrasonic lub cev muaj zog - yog muaj. Ntawm cov hoob kawm, nws yog tam sim no, vim yog autofocus kev kawm.
• Internal tsom - muaj. lens pab pawg neeg tsiv hauv lub lens, yog li ntawd hauv daim duab yuav ntshiab.
• Cov nab npawb ntawm cov pab pawg neeg / tus neeg - 10/8. Nws yog hais txog cov lo ntsiab muag interconnected thiab cais.
• Cov nab npawb ntawm cov uas tsis muaj-dispersion ntsiab - 2. Cov ntsiab tshem tawm cov kob xiav-liab doog bands nyob rau ciam teb ntawm cov kev kawm thiab cov tom qab (chromatic aberration).
• Number of diaphragm tuaj - 8. Qhov ntau, lub zoo dua. Qhov no lens ua ib tug zoo nkauj bokeh (tom qab plooj). Lub petals ntawm lub diaphragm ib lub voj voog nyob rau hauv lub keeb kwm yav dhau, uas yog tseem ceeb heev rau kev noj portraits, close-up.

Xyuas zoo siab tswv

Feem ntau ntawm cov neeg siv cov ntawv no faib ua xyiv fab impressions ntawm shooting nrog lub lens Canon EF 135. Xyuas tshuav kev lom zem ntau zoo. Peb hais ua ntej lawm hais tias cov telephoto lens yog tsim los rau kev noj cov duab ntawm nyob deb tej khoom, tab sis lub Canon EF 135 yog zoo meej rau portraiture. Ntau yam kev pab sau hais tias txawm ib tug xws li daim duab ua ib tug masterpiece. Xim, xim, style - tag nrho cov kev paub xaiv. Qhov no lens yog zoo meej rau txhua txoj kev.