Kusankha ndi Kugawa Njira Zamagalasi Owonera Makina

Makina owonera lensndi mandala opangidwa kuti azigwiritsidwa ntchito pamakina owonera makina, omwe amadziwikanso kuti magalasi a kamera yaku mafakitale. Makina owonera makina nthawi zambiri amakhala ndi makamera am'mafakitale, magalasi, magwero owunikira, ndi mapulogalamu opangira zithunzi.

Amagwiritsidwa ntchito kusonkhanitsa, kukonza, ndi kusanthula zithunzi kuti ziweruze zokha mtundu wa zida zogwirira ntchito kapena kumaliza miyeso yolondola popanda kulumikizana. Nthawi zambiri amagwiritsidwa ntchito poyezera molondola kwambiri, kusonkhanitsa makina, kuyesa kosawononga, kuzindikira zolakwika, kuyenda kwa robot ndi magawo ena ambiri.

1.Kodi muyenera kuganizira chiyani posankha magalasi owonera makina?

Posankhamakina owonera magalasi, muyenera kuganizira zinthu zosiyanasiyana kuti mupeze mandala omwe amakuyenererani bwino. Zinthu zotsatirazi ndizoziganiziridwa kawirikawiri:

Malo owonera (FOV) ndi mtunda wogwirira ntchito (WD).

Munda wakuwona ndi mtunda wogwirira ntchito umatsimikizira kukula kwa chinthu chomwe mungachiwone komanso mtunda kuchokera pa disolo kupita ku chinthucho.

Mtundu wa kamera yogwirizana ndi kukula kwa sensor.

Magalasi omwe mumasankha ayenera kufanana ndi mawonekedwe a kamera yanu, ndipo kupindika kwa lens kuyenera kukhala kwakukulu kuposa kapena kofanana ndi mtunda wa diagonal wa sensor.

Chochitika chamtengo wapatali choperekedwa.

Ndikofunikira kumveketsa bwino ngati pulogalamu yanu ikufuna kupotoza pang'ono, kusanja kwakukulu, kuya kwakukulu kapena kasinthidwe ka kabowo kakang'ono.

Kukula kwa chinthu ndi kuthekera kosintha.

Kukula kwa chinthu chomwe mukufuna kuchizindikira komanso momwe chiwongolerocho chikufunira kuyenera kumveka bwino, zomwe zimatsimikizira kukula kwa gawo lowonera komanso ma pixel angati pa kamera yomwe mukufuna.

Echilengedwe.

Ngati muli ndi zofunikira zapadera za chilengedwe, monga shockproof, fumbi kapena madzi, muyenera kusankha mandala omwe angakwaniritse izi.

Mtengo wa bajeti.

Mtengo wamtundu wanji womwe mungakwanitse udzakhudza mtundu wa lens ndi chitsanzo chomwe mumasankha pamapeto pake.

Makina owonera lens

2.Classified njira ya makina masomphenya magalasi

Pali zinthu zambiri zofunika kuziganizira posankha magalasi.Makina owonera ma lensAthanso kugawidwa m'mitundu yosiyanasiyana malinga ndi miyezo yosiyanasiyana:

Malingana ndi mtundu wa kutalika kwa focal, ikhoza kugawidwa mu: 

Ma lens okhazikika (kutalika kokhazikika kumakhazikika ndipo sikungasinthidwe), lens yowonera (utali wokhazikika ndi wosinthika ndipo magwiridwe antchito amasinthasintha).

Malingana ndi mtundu wa kabowo, akhoza kugawidwa mu: 

Manual aperture lens (chobowo chiyenera kusinthidwa pamanja), lens yodziyimira yokha (magalasi amatha kusintha kabowo malinga ndi kuwala kozungulira).

Malingana ndi zofunikira za kujambula zithunzi, zikhoza kugawidwa mu: 

Ma lens okhazikika (oyenera kutengera zosowa zanthawi zonse monga kuyang'anira wamba ndi kuyang'anira bwino), magalasi owoneka bwino (oyenera kuzindikirika molondola, kujambula kothamanga kwambiri ndi ntchito zina zokhala ndi zofunikira zapamwamba).

Kutengera kukula kwa sensor, ikhoza kugawidwa m'magulu awiri: 

Magalasi amtundu wa sensor ang'onoang'ono (oyenera masensa ang'onoang'ono monga 1/4 ″, 1/3 ″, 1/2 ″, ndi zina), ma lens amtundu wapakati (oyenera masensa apakati monga 2/3 ″, 1 ″ , etc. sensor), ma lens akuluakulu amtundu wa sensa (kwa 35mm full-frame kapena masensa akuluakulu).

Malingana ndi njira yojambula, ikhoza kugawidwa m'magulu awiri: 

Lens yojambula ya monochrome (imatha kujambula zithunzi zakuda ndi zoyera), lens yojambula zithunzi (imatha kujambula zithunzi zamitundu).

Malinga ndi zofunikira zapadera zogwirira ntchito, zitha kugawidwa mu:magalasi osokonekera otsika(zomwe zingachepetse kusokonezeka kwa mawonekedwe azithunzi ndipo ndizoyenera zochitika zogwiritsira ntchito zomwe zimafuna muyeso wolondola), ma anti-vibration lens (oyenera malo ogulitsa mafakitale okhala ndi kugwedezeka kwakukulu), ndi zina zotero.