Canon EF 200-400mm f / 4L IS USM Extender 1.4x thaum kawg raug

Canon EF 200-400mm f / 4L IS USM Extender 1.4x lens tau tshaj tawm thaum kawg, ntau tshaj ob xyoos tom qab nws thawj zaug saib ua ntej.

Canon tau thab EF 200-400 hli f / 4L IS USM Extender 1.4x lens rau qee lub sijhawm. Nws thawj qhov kev tshwm sim tau tshwm sim thaum ntxov 2011, ua rau cov lus xaiv hais tias lub lens yuav raug tso tawm thaum kawg 2011.

Txawm li cas los xij, 2012 tuaj sai dua thiab nws zoo li Nyij Pooj-tuam txhab thaum kawg yuav tso cov khoom lag luam. Zoo, xav tsis thoob, xav tsis thoob, raws li cov optic tsis tau tso tawm xyoo tas los. Yog li, ntawm no peb yog, yuav luag ib nrab ntawm xyoo 2013, nrog Canon EF 200-400mm f / 4L IS USM Extender 1.4x lens muaj rau kev txiav txim ua ntej, thaum kawg.

Canon EF 200-400mm f / 4L IS USM Extender 1.4x lens yog thaum kawg nyob ntawm no. Nws nta ua lub hauv paus 1.4 x teleconverter, noj lub focal mus txog 280-560mm f / 5.6 Nws yog qhwv hauv huab cua sealing pob nrog 4-nres IS thiab Fais fab Kev Tshawb Fawb.

Canon EF 200-400 hli f / 4L IS USM Extender 1.4x lens tso tawm hnub thiab tus nqi tshaj tawm tau tshaj tawm

Cov kws tshuaj ntsuam tsis cia siab tias lub lens no yuav muag tau ntawm ntau cov khoom, tab sis qhov no tsis yog vim nws tsis muaj cov yam ntxwv. Qhov tseeb, nws qhov peev xwm ua tau yog ntau dua li cov kws thaij duab feem ntau muaj peev xwm them taus thiab lub lens nws tus kheej tau tsom mus rau cov kws tshaj lij kev txawj, nrog rau kev txaus siab tshwj xeeb hauv cov tsiaj qus thiab kev ua kis las duab.

Canon EF 200-400mm f / 4L IS USM Extender 1.4x lub lens tso tawm hnub tau teem rau lub hli kawg, feem ntau yuav Tsib Hlis 29. Lub lens yuav dhau los ua tus nqi muag ntawm $ 11,799.

Canon EF 200-400mm f / 4L IS USM yog lub lens thawj zaug uas muab cov khoom sib txuas ua ke nrog 1.4 x teleconverter

Qhov no yuav ua rau ntau tus neeg xav txog nws cov npe feature, tab sis npaj kom muaj kev xav tsis thoob. Lo ntsiab muag los nrog lub qhov tawm ntawm 1.4 x extender, txhais tau tias 200-400 hli f / 4 tuaj yeem hloov nws tus kheej mus rau lub lens nrog qhov ua tau zoo ntawm 280-560mm f / 5.6.

Lo ntsiab muag yog tsim raws li kev tsim kho cov hlau nplaum magnesium, nrog cov kev ua kom zoo dua thiab cov huab cua sib khi.

Huab cua huab cua optic muab kev ua haujlwm zoo hauv txhua qhov chaw ib puag ncig thiab kev ua haujlwm, ua tsaug rau nws cov Ultra-Low Dispersion (UD) cov ntsiab lus. Lawv tsom rau txo qis chromatic aberrations thiab xim plooj.

Txuas ntxiv, SubWavelength Txheej Txheem Txheej thiab Super Spectra Txheej yuav txo cov nplaim taws thiab ua kom tawg. Nws tsis zoo li cov neeg yuav khoom yuav nco ntsoov txhua cov npe zoo nkauj no, tab sis lawv yuav twv yuav raug siab rau qhov zoo ntawm qhov kawg cov txiaj ntsig.

Cov kev sib tw ncaws pob zoo siab! Tshiab IS thev naus laus zis zoo heev rau kev yias

Canon ntxiv hais tias lub lens muaj peev xwm tswj tau zoo tib yam thoob plaws txhua qhov chaw focal. Qhov no pab tau thaum thaij cov duab hauv cov teeb pom kev qis ntawm qhov nrawm nrawm dua.

Cov kws kislas thiab tsiaj ua kislas kuj yuav tau txais txiaj ntsig los ntawm 4-lub Optical Image Stabilizer thev naus laus zis.

Lub tuam txhab hais tias cov duab stabilization system yog hom tshiab thiab tias nws yuav ua rau cov kws thaij duab thaij duab coj los ua tej yam pom zoo hauv thaj chaw tsis zoo.

Ntxiv mus, lub npe hu ua IS Hom 3 tuaj yeem siv los tswj kev txhaj tshuaj thaum lub sijhawm sib kis, uas sawv cev rau lub txiaj ntsig zoo heev rau kev ua kom tawg.

Hwm teeb tsom rau cov koob yees duab siab thiab cov kws tshaj lij duab

Canon tshaj tawm nws ua lub koob yees duab high-end nrog kev hwm zoo rau cov kws tshaj lij kev thaij duab thiab cov koob yees duab. Cov neeg siv ntawm 1D C thiab 1D X lub koob yees duab kuj tseem yuav siv qhov zoo ntawm lub zog ua kom pom tseeb hom, uas tuaj yeem siv thaum sau cia cov yeeb yaj kiab.

Fais fab kom pom tseeb muab cov txiaj ntsig rub thaum rub tawm cov yeeb yaj kiab. Cov kws ua yeeb yaj kiab tsuas yog yuav tsum rub lub nplhaib, ces nres ntawm qhov kev ncua deb.

Txhua yam, Canon hais tias lub lens yuav yog qhov kev txais tos ntxiv rau txhua tus kws yees duab cov khoom siv. Amazon tau pib sau lub lens rau kev txiav txim ua ntej thiab hais tias nws tso tawm hnub yog Lub Rau Hli 30 (tsis yog Tsib Hlis, zoo li Canon) rau tus nqi $ 11,799.