Niki aFisheyeLens Fisheye lens ni ubwoko bwa kamera ya kamera yagenewe gukora ubugari bwagutse bwerekana ibintu, hamwe no kugoreka ibintu cyane. Indwara ya Fisheye irashobora gufata umwanya munini cyane wo kureba, akenshi igera kuri dogere 180 cyangwa zirenga, ibyo bigatuma uwifotora ashobora gufata ahantu hanini cyane mumashusho imwe.

Fisheye

Indwara ya Fisheye yitiriwe ingaruka zidasanzwe zo kugoreka, ikora ishusho yumuzingi cyangwa ingunguru ishobora gukabya kandi ikozwe neza. Ingaruka zo kugoreka ziterwa nuburyo lens yanga urumuri uko inyura mubirahuri bigoramye bya lens. Ingaruka zirashobora gukoreshwa mubuhanga nabafotora kugirango bakore amashusho adasanzwe kandi afite imbaraga, ariko birashobora kandi kuba imbogamizi niba ishusho-isanzwe-isanzwe yifuzwa.

Indwara ya Fisheye ije muburyo butandukanye, burimo uruziga rwa fisheye ruzengurutse, uruziga ruzengurutse fisheye, hamwe na fisheye yuzuye. Buri bwoko bwubwoko bwa fisheye bufite umwihariko wabwo kandi burakwiriye muburyo butandukanye bwo gufotora.

Bitandukanye n'inzira zifatika,fisheyentibirangwa byuzuye nuburebure bwibanze hamwe na aperture yonyine. Inguni yo kureba, ishusho ya diametre, ubwoko bwa projection, hamwe na sensor ikwirakwizwa byose biratandukanye ukurikije ibi.

Ubwoko bwo gukoresha imiterere

Umuzingi wa fisheye

Ubwoko bwa mbere bwamafi ya fisheye yatejwe imbere ni "umuzenguruko" ushobora gukora ishusho yumuzingi hamwe na dogere 180 yo kureba. Bafite uburebure bugufi cyane bwo kwibanda, mubisanzwe kuva kuri 7mm kugeza 10mm, bibafasha gufata intera nini cyane yerekana ibintu.

Uruziga rwa fisheye

Umuzenguruko wa fisheye uzengurutswe kugirango ukore ishusho yumuzingi kuri sensor ya kamera cyangwa indege ya firime. Ibi bivuze ko ishusho yavuyemo ifite ishusho yumuzingi hamwe nimbibi zumukara zizengurutse agace kazengurutse, bigakora ingaruka zidasanzwe "inyoni y amafi". Inguni zumuzingi wa fisheye zizaba umukara rwose. Uyu mwijima utandukanye na vignetting gahoro gahoro ya rectilinear kandi igashyirwaho gitunguranye. Ishusho izenguruka irashobora gukoreshwa muguhimba ibishimishije kandi bihanga. Izi zifite 180 ° zihagaritse, zitambitse na diagonal inguni yo kureba. Ariko birashobora kandi kuba imbogamizi niba uwifotora ashaka igipimo cyurukiramende.

Kuzengurukafisheyezikoreshwa muburyo bwo gufotora guhanga no mubuhanzi, nko mumafoto yububiko, gufotora abstract, no gufotora siporo ikabije. Birashobora kandi gukoreshwa mubikorwa bya siyansi na tekiniki aho bisabwa kureba impande zose, nko muri astronomie cyangwa microscopi.

Diagonal fisheye lens (aka yuzuye-ikadiri cyangwa urukiramende)

Mugihe amafi ya fisheye yamenyekanye cyane mumafoto rusange, amasosiyete ya kamera yatangiye gukora lens ya fisheye hamwe nuruziga runini rwagutse kugirango akingire ikariso yose ya firime. Bitwa diagonal, cyangwa rimwe na rimwe "urukiramende" cyangwa "byuzuye-byuzuye", fisheyes.

Indwara ya Diagonal fisheye ni ubwoko bwa lens ya fisheye ishobora gukora ultra-ubugari-buringaniye bwerekana ahantu hamwe na diagonal umurima ureba dogere 180 kugeza 190, mugihe impande zitambitse kandi zihagaritse kureba zizaba nto. Izi lens zitanga ibitekerezo bigoretse cyane kandi birakabije, ariko bitandukanye na lisansi ya fisheye izenguruka, yuzuza ibice byose byurukiramende rwa sensor ya kamera cyangwa indege ya firime. Kugirango ubone ingaruka zimwe kuri kamera ya digitale hamwe na sensor ntoya, uburebure buringaniye burakenewe.

Ingaruka zo kugoreka ya diagonalfisheyeikora isura idasanzwe kandi idasanzwe ishobora gukoreshwa mubuhanga nabafotora kugirango bafate amashusho yingirakamaro kandi ashimishije amaso. Gukabya gukabya birashobora gutuma umuntu yiyumvamo ubujyakuzimu no kugenda, kandi birashobora no gukoreshwa muguhimba ibintu bitagaragara kandi bitagaragara.

Diagonal fisheye lens

Igishushanyo cyangwa ibihingwa-bizengurutse fisheye lens

Uruzigafisheyenubundi bwoko bwa lens ya fisheye ibaho, hiyongereyeho uruziga rwa fisheye hamwe na lisiti yuzuye ya fisheye navuze mbere. Hagati hagati ya diagonal na fisheye izenguruka igizwe nishusho yumuzingi itezimbere ubugari bwimiterere ya firime aho kuba uburebure. Nkigisubizo, kumiterere iyo ari yo yose ya firime itari kare, ishusho izenguruka izahingwa hejuru no hepfo, ariko iracyerekana impande z'umukara ibumoso n'iburyo. Iyi format yitwa "portrait" fisheye.

Kuzenguruka-kuzenguruka fisheye lens

Izi lens zisanzwe zifite uburebure bwa metero 10-13mm hamwe numurima wo kureba hafi dogere 180 kuri kamera-yerekana ibihingwa.

Ibice bya fisheye byahunitswe ni uburyo buhendutse ugereranije nuburyo bwuzuye bwa fisheye, kandi butanga icyerekezo cyihariye hamwe ningaruka zo kugoreka.

Miniature fisheye

Kamera ntoya ya digitale, cyane cyane iyo ikoreshejwe nka kamera yumutekano, akenshi iba ifite lens ya fisheye kugirango irusheho gukwirakwira. Mensature fisheye lens, nka M12 fisheye lens na M8 fisheye lens, yagenewe amashusho mato mato mato akoreshwa muma kamera yumutekano. . Ukurikije agace gakora ka sensor sensor, lens imwe irashobora gukora ishusho yumuzingi kumurongo munini w'ishusho (urugero 1⁄2 ″), hamwe n'ikadiri yuzuye kumurongo muto (urugero 1⁄4 ″).

Amashusho yintangarugero yafashwe na M12 ya CHANCCTVfisheye:

Amashusho yintangarugero yafashwe na M12 fisheye ya CHANCCTV-01

Amashusho yintangarugero yafashwe na M12 ya fisheye ya CHANCCTV-02

Amashusho yintangarugero yafashwe na M12 fisheye ya CHANCCTV-03