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

Canon ili ndi mandala osangalatsa a makamera opanda magalasi a EOS M. Chogulitsacho chimakhala ndi mandala a EF-M 50-300mm f / 4.5-5.6 zoom okhala ndi mawonekedwe owoneka bwino.

Magalasi ambiri akhala ndi setifiketi kuyambira pachiyambi cha 2016. Nthawi zonse pamakhala malo ochulukirapo ndipo, kachiwiri, Canon ndiye kampani yomwe ikuwonekera. Wopanga waku Japan wangokhala ndi patenti yamagalasi ophatikizika amtundu wa ogwiritsa makamera opanda magalasi.

Ngati zonse zikuyenda bwino, eni ake a EOS M athe kuyika ma Canon EF-M 50-300mm f / 4.5-5.6 DO STM mandala nthawi ina mtsogolo. Komabe, zikuwoneka kuti mawonekedwe ofanana nawonso apatsidwa mwayi wokhala ndi makamera a EF-S-mount DSLR.

Canon EF-M 50-300mm f / 4.5-5.6 DO STM lens patent yowululidwa pa intaneti

Makampani opanga mphekesera apanga malonjezo ambiri okhudzana ndi mzere wopanda zingwe wa Canon. Tikuyembekeza kuwona ma lens atsopano kumapeto kwa 2016 limodzi ndi kamera yatsopano yopanda magalasi, yomwe ingalowe m'malo mwa EOS M3, monga EOS M10 idzakhalabe yotsika kumapeto. Kuphatikiza apo, chowombera chakumtunda chidzawonekera nthawi ina mu 2017 ndipo mwina chitha kukhala ndi chojambula chazithunzi.

Mmodzi mwa magalasi atha kukhala mandala a Canon EF-M 50-300mm f / 4.5-5.6 DO STM, omwe anali ovomerezeka ku Japan. Zolemba zomwe zalembedwazo akuti Optic idapangidwa kuti igwire ntchito ndi ma MILC okhala ndi masensa apakatikati a APS-C.

Canon EF-M 50-300mm f / 4.5-5.6 DO STM mandala ipereka 35mm yofanana pafupifupi 75-450mm.

Kutsegula kwake kwakukulu kumasiyana pakati pa f / 4.5 ndi f / 5.6, kutengera kutalika kwa utoto wosankhidwa. Magalimoto oyang'anitsitsa amakhala ndi Stepping Motor (STM), yomwe itha kukupangitsani kukhala osasunthika komanso mwakachetechete.

Mwina chochititsa chidwi kwambiri pa malondawa ndi mawonekedwe owoneka bwino. KODI ukadaulo wakhalapo kwazaka zambiri, koma ndi ma lens angapo a Canon omwe ali nawo.

Monga nthawi zonse, chinthu cha DO chimachepetsa mawonekedwe amkati a mandala. Padzakhala zinthu zochepa, koma mawonekedwe azithunzi adzasinthidwa bwino, chifukwa chromatic aberration imangochepetsedwa.

Kuphatikiza apo, izi zikutanthauza kuti mandala azikhala ocheperako komanso opepuka kuposa Optics wamba. Tsoka ilo, pali vuto: ukadaulo ndiokwera mtengo. Ichi ndiye chifukwa chachikulu chomwe ma lens ambiri a Canon otsatsa malonda alibe DO element.

Chosangalatsa ndichakuti nthawi imadutsa ndikuti ukadaulo ukhala wotsika mtengo. Zotsatira zake, sikwanzeru kuyembekezera kuyerekezera kwina ndi zinthu za DO za makamera opanda magalasi, pomwe kulemera ndi kukula kwake kuli kofunika, kukhazikitsidwa mtsogolo mozungulira.

Tiyenera kukudziwitsani kuti mandala omwewo adasinthidwa kukhala okhala ndi EF-S. Zingakhale zodabwitsa kuwona Canon ikubweretsa izi m'mitundu iwiri, koma osazichotsa pamndandanda wazotheka.

Komabe, Optics idasainira chivomerezo chawo pa Seputembara 9, 2014, pomwe chilolezo chidaperekedwa pa Epulo 21, 2016. Khalani tcheru ku Camyx chifukwa tidzakudziwitsani posachedwa zambiri zokhudzana ndi izi ukonde.