Kodi aFisheye Lens?Lens ya fisheye ndi mtundu wa lens ya kamera yomwe idapangidwa kuti ipangitse mawonekedwe akulu-akulu a chochitika, ndi kusokonekera kwamphamvu komanso kodziwika bwino. Ma lens a Fisheye amatha kujambula malo owoneka bwino kwambiri, nthawi zambiri mpaka madigiri 180 kapena kupitilira apo, zomwe zimalola wojambula kujambula malo akulu kwambiri pakuwombera kamodzi.

Lens ya fisheye

Ma lens a Fisheye amatchulidwa kutengera kusokoneza kwawo kwapadera, komwe kumapanga chithunzi chozungulira kapena chooneka ngati mbiya chomwe chimatha kukokomeza komanso chokongoletsedwa. Kusokoneza kumachitika chifukwa cha momwe lens imasinthira kuwala pamene ikudutsa muzinthu zamagalasi zopindika za lens. Izi zitha kugwiritsidwa ntchito mwaluso ndi ojambula kuti apange zithunzi zapadera komanso zowoneka bwino, koma zitha kukhalanso malire ngati chithunzi chowoneka mwachilengedwe chikufunidwa.

Ma lens a fisheye amabwera m'mitundu yosiyanasiyana, kuphatikiza ma lens a fisheye ozungulira, ma lens a fisheye ozungulira, ndi ma lens amtundu wathunthu. Iliyonse mwa mitundu iyi ya ma lens a fisheye ili ndi mawonekedwe akeake ndipo ndiyoyenera kujambula mitundu yosiyanasiyana.

Mosiyana ndi ma lens a rectilinear,ma lens a fisheyesizimazindikirika ndi utali wolunjika ndi kabowo kokha. Mawonekedwe, kutalika kwa chithunzi, mtundu wa projekiti, ndi kufalikira kwa sensa zonse zimasiyana mosiyana ndi izi.

Mitundu yogwiritsira ntchito mawonekedwe

Ma lens ozungulira a fisheye

Mtundu woyamba wa ma lens a fisheye opangidwa anali magalasi "ozungulira" omwe amatha kupanga chithunzi chozungulira chokhala ndi mawonekedwe a digirii 180. Ali ndi utali wotalikirapo waufupi kwambiri, womwe umayambira pa 7mm mpaka 10mm, zomwe zimawathandiza kuti azitha kuyang'ana mbali yayikulu kwambiri.

Lembani lens ya fisheye yozungulira

Ma lens ozungulira a fisheye amapangidwa kuti apange chithunzi chozungulira pa sensa ya kamera kapena ndege ya kanema. Izi zikutanthauza kuti chithunzicho chimakhala ndi mawonekedwe ozungulira ndi malire akuda ozungulira malo ozungulira, kupanga "fishbowl" yapadera. Makona a chithunzi cha fisheye chozungulira chidzakhala chakuda kwathunthu. Chikuda ichi ndi chosiyana ndi kuwoneka kwapang'onopang'ono kwa ma lens a rectilinear ndikuyambira mwadzidzidzi. Chithunzi chozungulira chingagwiritsidwe ntchito kupanga nyimbo zosangalatsa komanso zopanga. Izi zili ndi 180 ° ofukula, yopingasa ndi diagonal yowonera. Koma itha kukhalanso malire ngati wojambula akufuna mawonekedwe a rectangular.

Zozungulirama lens a fisheyeNthawi zambiri amagwiritsidwa ntchito pojambula mwaluso komanso mwaluso, monga kujambula zomanga, kujambula mozama, komanso kujambula pamasewera monyanyira. Atha kugwiritsidwanso ntchito pazinthu zasayansi ndi zaukadaulo komwe kumafunikira mawonekedwe akulu, monga zakuthambo kapena maikulosikopu.

Ma lens a diagonal fisheye (aka mawonekedwe athunthu kapena amakona anayi)

Pamene ma lens a fisheye ayamba kutchuka pojambula, makampani opanga makamera adayamba kupanga ma lens a fisheye okhala ndi chithunzi chokulirapo kuti atseke filimu yonse yamakona anayi. Amatchedwa diagonal, kapena nthawi zina "rectangular" kapena "full-frame", fisheyes.

Ma lens a Diagonal fisheye ndi mtundu wa ma lens a fisheye omwe amatha kupanga mawonekedwe otalikirapo kwambiri a malo okhala ndi mawonekedwe a diagonal a 180 mpaka 190 madigiri, pomwe mawonedwe opingasa ndi ofukula adzakhala ochepa. Ma lens awa amatulutsa mawonekedwe opotoka komanso mokokomeza, koma mosiyana ndi magalasi ozungulira a fisheye, amadzaza chimango chonse chamakona a sensa ya kamera kapena ndege ya kanema. Kuti mupeze zotsatira zomwezo pamakamera adijito okhala ndi masensa ang'onoang'ono, kutalika kwapang'onopang'ono kumafunika.

Kusokoneza kwa diagonallens ya fisheyezimapanga mawonekedwe apadera komanso odabwitsa omwe angagwiritsidwe ntchito mwaluso ndi ojambula kujambula zithunzi zowoneka bwino komanso zowoneka bwino. Kuwona mokokomeza kungapangitse kuzama ndi kuyenda pazochitika, komanso kungagwiritsidwe ntchito popanga nyimbo zosamveka komanso za surreal.

Diagonal fisheye lens

Zithunzi kapena ma lens a fisheye ozungulira

Chozungulira-chozungulirama lens a fisheyendi mtundu wina wa lens wa fisheye womwe ulipo, kuphatikiza ma lens a fisheye ozungulira komanso mawonekedwe athunthu omwe ndidatchulapo kale. Pakatikati pakati pa diso lozungulira ndi diagonal lili ndi chithunzi chozungulira chokongoletsedwa ndi m'lifupi mwa filimuyo osati kutalika kwake. Chotsatira chake, pamtundu uliwonse wa filimu wopanda masikweya, chithunzi chozungulira chidzadulidwa pamwamba ndi pansi, komabe chimasonyeza m'mphepete mwakuda kumanzere ndi kumanja. Mtundu uwu umatchedwa "portrait" fisheye.

Lens ya fisheye yozungulira yozungulira

Magalasi awa nthawi zambiri amakhala ndi kutalika kozungulira 10-13mm ndi gawo lowonera pafupifupi madigiri 180 pa kamera ya sensor ya mbewu.

Ma lens a fisheye a Cropped-circle ndi njira yotsika mtengo kwambiri poyerekeza ndi ma lens amitundu yonse, ndipo amapereka mawonekedwe apadera ndi kusokoneza kozungulira.

Miniature fisheye lens

Makamera ang'onoang'ono a digito, makamaka akagwiritsidwa ntchito ngati makamera otetezera, nthawi zambiri amakhala ndi ma lens a fisheye kuti azitha kuphimba kwambiri. Ma lens ang'onoang'ono a fisheye, monga ma lens a M12 fisheye ndi ma lens a M8 fisheye, amapangidwa kuti azijambula zithunzi zazing'ono zomwe zimagwiritsidwa ntchito pamakamera achitetezo.Kukula kwa sensa yazithunzi zodziwika bwino kumaphatikizapo 1⁄4″, 1⁄3″, ndi 1⁄2″ . Malingana ndi malo omwe akugwira ntchito pa chithunzithunzi chazithunzi, lens lomwelo likhoza kupanga chithunzi chozungulira pa chithunzi chachikulu (monga 1⁄2″), ndi chimango chokwanira pa chaching'ono (monga 1⁄4″).

Zitsanzo za zithunzi zojambulidwa ndi CHANCCTV's M12ma lens a fisheye:

Zitsanzo za zithunzi zojambulidwa ndi CHANCCTV's M12 fisheye lens-01

Zitsanzo za zithunzi zojambulidwa ndi CHANCCTV's M12 fisheye lens-02

Zitsanzo za zithunzi zojambulidwa ndi CHANCCTV's M12 fisheye lens-03