Canon EF 400mm f / 4 UA YOG USM II lo ntsiab muag tau ua tiav

Canon ua kev zoo siab 75 xyoo ntawm kev tsim kho qhov muag pom kev nrog kev qhia ntawm EF 400mm f / 4 DO IS II USM lens, ua rau lub teeb yuag thiab compact super telephoto lens, ntawm Photokina 2014.

Cov lens no tau hais txog ntev heev, tab sis tej yam zoo tuaj rau cov neeg tos. Canon EF 400mm f / 4 UA YOG USM II lens tam sim no raug nom, kev saib siab ntawm Photokina 2014 kev tshwm sim, thiab nws cog lus kom xa cov khoom zoo dua qub hauv pob ntawv me me thiab cov pob.

Canon EF 400mm f / 4 DO IS II USM lens tau tshaj tawm rau EOS DSLR koob yees duab thiaj li xa cov duab zoo dua thaum piv nrog nws cov neeg ua ntej.

Canon tshaj tawm cov tshiab teeb ci nrog cov khoom sib txawv hauv kev siv tshuab: EF 400mm f / 4 DO IS USM II

Qhov thib ob tiam 400mm f / 4 DO lub koob yees duab yuav muab cov duab ua kom zoo dua qub thaum piv nrog nws cov neeg ua ntej. Txawm li cas los xij, nws qhov ntev yog ntxhib los sib piv rau cov thawj version, yog li cov neeg siv yuav tsis muaj kev sib zog thaum tua nrog cov khoom no.

Canon EF 400mm f / 4 UA YOG USM II lens tam sim no nta cov cim tshiab ob-txheej kev sib txawv cov khoom sib txuam. Qhov lo ntsiab muag 'mis mos tau hloov kho kom muab tso tau cov khoom siv DO tshiab tob rau hauv nws cov qauv tsim sab hauv. Txoj kev no, nplaim taws yuav raug txo kom tsawg, tshwj xeeb tshaj yog thaum cov tub yees duab thaij duab thaij sab nraud.

Lub tshuab "sib txawv qhov muag" tseem zoo ntawm kev txo cov chromatic aberration, yog li cov duab zoo yuav raug siab heev, ntau rau kev ua kom zoo siab ntawm cov neeg siv.

Canon EF 400mm f / 4 DO IS USM II lens ntawm no yog muab kom tau cov duab zoo tshaj plaws

Canon tus tshiab lub lens siv cov ntsiab lus uas ua rau muaj kev ua haujlwm thiab kev ua haujlwm ntawm Ultra Low Dispersion (UD), uas yuav kho qhov kho qhov muag tsis zoo. Ntxiv mus, EF 400mm f / 4 DO IS USM II lens yog SWC txheej, txuas ntxiv txo cov nplaim taws los tsim cov kev txhaj tshuaj zoo.

Lub tuam txhab Nyij Pooj kuj tseem ntxiv cov duab kho qhov muag kom pom tseeb rau hauv cov khoom lag luam, uas muab txog plaub f-nres ntawm kev kho.

Lub kaw lus autofocus siv los ntawm lub cev muaj zog ntawm ultrasonic (USM), yog li kev tsom mus yuav yooj yim heev thiab ntsiag to.

Cov ntaub ntawv muaj

Canon tau tsim cov txheej txheem DO vim tias nws muaj ntau yam zoo dua li cov qauv kho qhov muag tsis tu ncua. Ntawm ib sab kev txhim kho cov duab zoo, EF 400mm f / 4 DO IS USM II lens yog kwv yees li 50% dua li EF 400mm f / 2.8 IS II USM.

Cov khoom tshiab no hnyav 2,100 grams / 74.1 ooj, thaum ntsuas 128mm / 50.4-nti inch thiab 232.7mm / 91.6-nti nyob ntev.

Raws li tau teev tseg saum toj no, qhov txo me me thiab qhov hnyav yog txhua yam vim muaj qhov sib txawv ntawm cov khoom siv sib txawv. Ib qho tsis pom zoo tuaj yeem txiav txim siab tus nqi, raws li Canon EF 400mm f / 4 DO IS USM II lens yuav txiav txim rau lub Kaum Ib Hlis rau kwv yees $ 6,899.

Cov neeg tuaj yeem tuaj yeem xaj tau qhov optic no los ntawm Amazon ntawm nqe aforementioned.