Canon EF-M 50-300mm f / 4.5-5.6 DO STM lens patent leaked

Canon tau ua tiav daim duab nthuav dav rau EOS M-series cov koob yees duab tsis muaj tsom iav. Cov khoom lag luam muaj EF-M 50-300mm f / 4.5-5.6 zoom lub lens nrog lub qhov muag tsis sib xws.

Ntau ntawm cov lo ntsiab muag tau raug patented txij thaum pib ntawm 2016. Muaj ib txwm muaj chaw rau ntau dua thiab, ib zaug ntxiv, Canon yog cov tuam txhab hauv cov tsom teeb. Cov chaw tsim khoom nyob hauv Nyij Pooj tau tsuas sau txog lub koob yees duab zoom rau lub koob yees duab tsom iav rau cov neeg siv khoom.

Yog tias txhua yam ua tau zoo, tom qab ntawd cov tswv EOS M yuav muaj peev xwm tau txais lawv txhais tes ntawm Canon EF-M 50-300mm f / 4.5-5.6 DO STM lens rau qee lub sijhawm tom ntej. Txawm li cas los xij, nws pom tias cov optic zoo sib xws kuj tau patented rau EF-S-mount DSLR koob yees duab.

Canon EF-M 50-300mm f / 4.5-5.6 DO STM lens patent qhia hauv online

Cov lus xaiv zeb tau ua ntau qhov kev cog lus hais txog Canon cov tsom iav tsis muaj kab. Peb cia siab tias yuav pom cov lenses tshiab ua ntej xyoo 2016 nrog rau lub koob yees duab tsom iav tshiab, uas yuav zoo li hloov lub EOS M 3, raws li cov EOS M 10 yuav nyob qis dua qauv. Tsis tas li ntawd, ib tus neeg ua hauj lwm siab-kawg yuav pom thaum lub xyoo 2017 thiab nws kuj tseem yuav muaj lub ntsej muag los saib lub koob yees duab.

Ib qho ntawm lo ntsiab muag tej zaum yuav zoo tau Canon EF-M 50-300mm f / 4.5-5.6 DO STM lens, uas tau ua ntawv sau txog hauv Nyij Pooj. Cov ntaub ntawv tso tawm hais tias optic yog tsim los ua haujlwm nrog MILCs ua haujlwm ntawm APS-C-qhov loj me.

Canon EF-M 50-300mm f / 4.5-5.6 DO STM lens yuav muab 35 hli sib npaug ntawm txog 75-450mm.

Nws qhov ntau aperture yuav nyob nruab nrab ntawm f / 4.5 thiab f / 5.6, nyob ntawm tus neeg siv-xaiv focal ntev. Lub zog tsav yuav suav nrog Kauj Ruam Tsav (STM), uas yuav zoo li muab lub ntsej muag du thiab ntsiag to.

Tej zaum qhov feem ntau txaus nyiam ntawm cov khoom no yog qhov sib txawv ntawm lub qhov muag pom. DO thev naus laus zis tau nyob ib ncig ntawm lub xyoo, tab sis tsuas yog qee qhov Canon lo ntsiab muag muaj nws.

Raws li ib txwm, ib qho DO keeb kwm yuav ua kom yooj yim kho qhov teeb meem sab hauv ntawm lub lens. Yuav muaj cov ntsiab lus tsawg dua hauv tag nrho, tab sis cov duab zoo yuav tau ruaj khov kho, vim tias chromatic aberration tau khaws cia tsawg kawg nkaus.

Ntxiv mus, qhov no txhais tau hais tias ib lub lens yuav me dua thiab sib dua dua li cov pa hluav taws xob. Hmoov tsis, muaj kev poob qis: thev naus laus zis kim. Qhov no yog vim li cas lub ntsiab yog vim li cas tsis muaj ntau cov lag luam muaj muag Canon lo ntsiab muag muaj qhov keeb kwm DO.

Qhov zoo yog lub sijhawm dhau mus thiab cov thev naus laus zis yuav dhau los ua kev lag luam pheej yig dua. Raws li qhov tshwm sim, nws tsis yog qhov tsis tsim nyog xav tias yuav muaj kev xaiv dav dua nrog DO cov ntsiab lus rau cov koob yees duab tsom iav, qhov twg qhov nyhav thiab qhov loj yog qhov tseem ceeb, yuav tsum tau pib ua kom tau zoo yav tom ntej.

Peb yuav tsum qhia rau koj paub tias tib lub lens tseem tau muaj ntawv sau nrog EF-S mount. Nws yuav tsis txaus ntseeg pom Canon qhia cov khoom no ua ob hom, tab sis tsis txhob cais nws tawm ntawm cov npe tau.

Xijpeem, cov optics tau muaj lawv daim ntawv cai patent rau lub Cuaj Hlis 9, 2014, thaum kev pom zoo tau tso cai thaum Lub Plaub Hlis 21, 2016. Nyob ntawm Camyx vim tias peb yuav qhia koj paub sai li sai tau cov lus qhia ntau ntxiv txog cov khoom no tshwm sim rau lub vas sab.