Canon EF 70-300mm f / 4.5-5.6 DO patent lens imawonekera ku Japan

Canon ili ndi patent ma lens awiri atsopano ku Japan, imodzi yokhala ndi 100-400mm kutalika kwake komanso inayo yokhala ndi 70-300mm, koma zonsezi ndi mawonekedwe owoneka bwino.

"Chaka cha magalasi" chayamba ku Canon ndikukhazikitsa EF 16-35mm f / 4L NDI USM ndi EF-S 10-18mm f / 4.5.5-6 NDI STM mitundu yapakatikati pa Meyi.

Mphekesera ikunena kuti ma lens ena adzawululidwa kumapeto kwa chaka cha 2014, kuphatikiza mawonekedwe akutali ndi f / 2.8 kabowo ndikusintha kwa EF 100-400mm f / 4.5-5.6L IS.

Pakadali pano, kampaniyo ili ndi mitundu iwiri yamitengo yatsopano ku Japan ndipo m'modzi mwa iwo atha kukhala wolowa m'malo mwa 100-400mm.

Magalasi awiri aposachedwa kwambiri ndi Canon EF 100-400mm f / 4.5-5.6 DO ndi Canon EF 70-300mm f / 4.5-5.6 DO.

Canon EF 70-300mm f / 4.5-5.6 DO ndi EF 100-400mm f / 4.5-5.6 DO magalasi okhala ndi setifiketi ku Japan

Patent ya Canon EF 70-300mm f / 4.5-5.6 DO lens. Mtundu wa mandalawu udakalipobe pamsika, koma zikuwoneka kuti kampaniyo yasankha kusintha mtunduwu.

Canon amanenedwa kuti amasulidwa yatsopano ya 100-400mm optic kwa nthawi yayitali kwambiri. Zovomerezeka zambiri zawonekera pakati pa mphekesera izi, koma pali malo enanso.

Mtunduwu uli ndi zinthu 17 zomwe zidagawika m'magulu 11 okhala ndi chigawo cha fluorite komanso mawonekedwe owoneka bwino.

Canon EF 70-300mm f / 4.5-5.6 DO lens ili ndi mawonekedwe ofanana ndi zinthu 17 zamagulu 11 komanso ma fluorite ndi mawonekedwe owoneka bwino.

Kodi chosintha chamagetsi ndi chiyani?

Canon yakhala ikugwiritsa ntchito magalasi opepuka m'malensi ake ena kwazaka zingapo. Tekinoloje ya DO imalola kampani kupanga magalasi apamwamba kwambiri posunga kulemera ndi kukula kwake.

Zinthu zosanjikiza zama multilayer zimapangidwa powonjezera zokutira zokutira kuzinthu zamagalasi. Mwanjira iyi, magalasi amakhala ocheperako komanso opepuka, komanso kukulitsa mawonekedwe azithunzi.

Kuwonjezeka kwaubwino kumabwera chifukwa choti zinthu za DO sizimwazitsa kuwala, monga mitundu wamba. Kuwala kukamwazikana mu mandala, kumapangitsa kusintha kosasintha. Komabe, mukamagwiritsa ntchito ma optics osakanikirana ndi mandala, chromatic aberration imachotsedwa, akuti Canon.

Chitsanzo cha mandala a Canon DO

Monga tafotokozera pamwambapa, Canon yatulutsa magalasi a DO pamsika. Chimodzi mwazomwezi ndi Canon EF 70-300mm f / 4.5-5.6 DO IS USM lens yomwe yakhala ikuzungulira zaka pafupifupi khumi.

Patent yatsopano ikusonyeza kuti m'malo mwa optic iyi tsopano ili pafupi. M'badwo wapano ukupezekabe ku Amazon pafupifupi $ 1,400, yomwe imakhalabe yogwirizana poganizira kuti mtengo wotsegulira mtunduwu wakonzedwa $ 2,300.

Apanso, palibe tsiku lotulutsira, koma kulengeza kumatha kuchitika nthawi ina chilimwe, chifukwa chake tengani izi ndi uzitsine wa mchere pakadali pano.