Canon EF-M 50-300mm f / 4.5-5.6 DO STM gashiga patent-ka ayaa xaday

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Canon wuxuu sifeeyay muraayadaha xiisaha leh ee EOS M-taxanaha kamaradaha bilaa muraayadda ah. Badeecadu waxay ka kooban tahay muraayad indho-indheyn ah oo loo yaqaan 'EF-M 50-300mm f / 4.5-5.6' oo leh walxo indhaha ku faafiya.

Muraayadaha faraha badan ayaa la ilaaliyay tan iyo bilowgii sanadka 2016. Marwalba meel ayaa banaan inbadan iyo, markale, Canon waa shirkada tooshka kuheysa. Soo saaraha Jabbaan ayaa kaliya u fasaxay muraayadaha wax lagu sawiro ee loo adeegsado kamaradaha aan muraayadda lahayn.

Haddii wax waliba hagaagaan, markaa milkiilayaasha EOS M waxay awoodi doonaan inay gacmahooda ku saaraan Canon EF-M 50-300mm f / 4.5-5.6 DO STM lens lenses mustaqbalka. Si kastaba ha noqotee, waxay u muuqataa in muuqaal la mid ah sidoo kale loo sharciyeeyay kamaradaha EF-S-mount DSLR.

Canon EF-M 50-300mm f / 4.5-5.6 DO STM gashiga patent-ka ayaa lagu muujiyay khadka tooska ah

Hadal heynta ayaa sameysay ballan qaadyo badan oo ku saabsan safka muraayadda aan lahayn ee Canon. Waxaan rajeyneynaa inaan aragno muraayadaha indhaha dhammaadka sanadka 2016 oo ay weheliso kamarad cusub oo aan muraayad lahayn, taas oo beddeli doonta EOS M3, sida EOS M10 waxay ahaan doontaa moodal dhammaad hoose ah. Intaa waxaa sii dheer, toogte-dhamaadka sare ah ayaa laga yaabaa inuu soo muuqdo mararka qaar sanadka 2017 waxaana xitaa laga yaabaa inuu yeesho dareemayaal sawir buuxa leh.

Mid ka mid ah muraayadaha indhaha ayaa si fiican u noqon kara Canon EF-M 50-300mm f / 4.5-5.6 DO STM lens, oo shati ku lahaa Japan. Xaraynta xareynta waxay xustay in optic-ka loo qorsheeyay inuu la shaqeeyo MILC-yada soo bandhiga dareemayaal cabirkoodu yahay APS-C.

canon-ef-m-50-300mm-f4.5-5.6-do-stm-lens-patent Canon EF-M 50-300mm f / 4.5-5.6 DO STM lens patent xaday Xanta

Canon EF-M 50-300mm f / 4.5-5.6 DO STM lens wuxuu bixin doonaa 35mm u dhiganta qiyaastii 75-450mm.

Furitaankeeda ugu sarreysa wuxuu u dhexeeyaa f / 4.5 iyo f / 5.6, iyadoo kuxiran dhererka diiradda foormarka ee isticmaalaha. Diirad saarista waxay ka koobnaan doontaa Stepping Motor (STM), taas oo ay u badan tahay inay siiso autofocusing siman oo aamusan.

Waxaa laga yaabaa in dhinaca ugu xiisaha badan ee badeecadani ay tahay curiyaha muuqaalka indhaha. Tiknoolajiyada 'DO' ayaa soo jirtay muddo sannado ah, laakiin kaliya dhowr lenses Canon ayaa leh.

Sida had iyo jeer ah, curiyaha 'DO element' wuxuu fududeyn doonaa qaabeynta gudaha muraayadaha. Waxaa jiri doona waxyaabo ka yar guud ahaan, laakiin tayada sawirka ayaa si weyn loo hagaajin doonaa, maadaama aberration chromatic-ka lagu hayo ugu yaraan.

Intaa waxaa dheer, tani waxay ka dhigan tahay in muraayadaha indhaha ay ka yaraan doonaan sidoo kalena ka fududnaan doonaan optics-ka caadiga ah. Nasiib darrose, waxaa jira hoos u dhac: farsamada waa qaali. Tani waxay u badan tahay inay tahay sababta ugu weyn ee ganacsiyada badan ee muraayadaha indhaha loo yaqaan 'Canon lenses' aysan u lahaan karin 'DO element'.

Waxa ugu fiican ayaa ah in waqtiga uu ku gudbo iyo in tikniyoolajiyadu ay ka jaban doonto. Natiija ahaan, caqli gal maaha in la filo optics badan oo leh walxaha 'DO' ee kamaradaha aan muraayadda lahayn, halkaasoo miisaanka iyo cabbirka ay muhiim yihiin, in la bilaabo mustaqbalka deriska.

Waa inaan ku ogeysiinno in muraayadda isku midka ah ay sidoo kale leedahay rukhsad leh EF-S mount. Waxay noqon doontaa wax la yaab leh in la arko Canon oo soo saareysa badeecadan laba nooc, laakiin ha ka reebin liiska fursadaha.

Sikastaba, optics-ka waxaa lasiiyay rukhsad lahaanshahooda 9 september, 2014, halka ogolaanshaha la siiyay Abriil 21, 2016. La soco Camyx maxaa yeelay waxaan kula soo socodsiin doonaa sida ugu dhakhsaha badan faahfaahin dheeri ah oo ku saabsan badeecadan webka

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