Kodi mungasankhe bwanji kamera yausiku?

Kaya mukuyang'ana kamera yamtundu wamtundu wa utoto kapena kamera yofinya kunja, dongosolo lopangidwa bwino, limadalira kamera yabwino kwambiri komanso yabwino kwambiri. Kusiyana kwa mtengo pakati pa mabizinesi am'mimba komanso okwanira usiku kumatha kuyambira $ 200 mpaka $ 5,000. Chifukwa chake, kamera ndi zotumphukirana zina (monga magetsi a IRS, zokutira, zokutira, zomangira zoteteza, ndi magetsi) zimafunikira malingaliro omwe angasankhe.

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Magawo otsatirawa amapereka malangizo ena pazomwe mungaganizire musanasankhe ndikukhazikitsa kamera yopepuka yotsika.

Samalani ndi kuchuluka kwa kamera

Kukula kwake kumatsimikizira kuchuluka kwa kuwala komwe kumatha kudutsa mandala ndikufika pa zigawo zokulirapo-zokulirapo zimalola kuonekeranso, pomwe zing'onozing'ono zimalola kuti ziwoneke. Chinthu china chomwe chimayenera kudziwa ndi mandala, chifukwa kukula kwa kutalika ndi kukula kwake ndikofanana. Mwachitsanzo, malembedwe a 4mmm amatha kukwaniritsa chimbudzi cha F1.2 mpaka 1.4, pomwe 50mm mpaka 200mm mandala amangopeza mawonekedwe apamwamba a F1.8 mpaka 2.2. Chifukwa chake izi zimakhudza kuwonetsedwa ndipo, mukamagwiritsidwa ntchito ndi zosefera za IR, kulondola kwa utoto. Kusungunuka mwachangu kumakhudzanso kuchuluka kwa kuwala komwe kumafika. Kuthamanga kwa Shutter Video usiku kuyenera kusungidwa pa 1/30 kapena 1/25 kwa akuwunika usiku. Kupita pang'onopang'ono kuposa izi kudzapangitsa kuti khungu lisasokonekere.

Chitetezo cha kamera chocheperako

Mlingo wowunikira wotetezeka umatchulapo kanthu kochepa komwe kumajambulitsa kanema / zithunzi. Opanga kamera amatchulanso mtengo wotsika kwambiri wa zikwangwani zosiyanasiyana, zomwe zilinso zowoneka bwino kwambiri kapena chidwi cha kamera. Mavuto omwe angakhale ndi vuto ngati kuchuluka kwa kamera ndikokwera kuposa mawonekedwe a omwe aperekedwa kwa Spectrum. Pankhaniyi, mtunda wogwira mtima udzakhudzidwa ndipo chithunzicho chidzakhala mmodzi wa malo owala ozungulira ndi mdima.

Mukakhazikitsa magetsi ndi ounikira IR, okhazikitsa ayenera kuyang'anitsitsa momwe magetsi a IR amaphimba malo omwe akufunika kuyang'aniridwa. Kuwala kwa infrated kumatha kuponyera makhoma ndi khungu.

Kuchuluka kwa kuwala kamera kumatenganso ndi chinthu china chomwe chingakhudze kwambiri magwiridwe antchito a kamera. Monga mfundo yayikulu, kuwala kowonjezereka kumafanana ndi chithunzi chabwinoko, chomwe chimakhala chofunikira kwambiri patali kwambiri. Kupeza chithunzi chapamwamba kwambiri kumafunikira kuwala kokwanira kokwanira, komwe kumadya mphamvu zambiri. Pankhaniyi, zitha kukhala zotsika mtengo kwambiri kuti mupereke kuwala kowonjezereka kuti muthandizire ntchito ya kamera.

Kusunga mphamvu, magetsi ophatikizika (oyendetsa bwino, oyendetsa, kapena owonera) amatha kuyika moto pomwe kuwala koyandikira kumagwera pansi kapena munthu wina akafika ku sensor.
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Mphamvu yomaliza yomaliza ya powunikira dongosolo iyenera kukhala yogwirizana. Mukamagwiritsa ntchito Kuwala Kuwala, zinthu zofunika kuziganizira zimaphatikizapo nyali ya Ind, a IR korona, ndi magetsi a mphamvu zamagetsi. Mtunda wa chingwecho chimakhudzanso dongosololi, monga momwe zimachepetsedwa ndi mtunda woyenda. Ngati pali nyali zambiri zapamwamba ndi ma maikulu, pogwiritsa ntchito mphamvu yapamwamba ya DC122V ​​ikhoza kuyambitsa nyali pafupi kwambiri ndi magetsi kwambiri, pomwe nyali zazitali kwambiri, pomwe nyali zazitali kwambiri. Komanso kusinthasintha kwa magetsi kumachepetsa moyo wa nyali ya IR. Nthawi yomweyo, mphamvu yamagetsi ikakhala yotsika kwambiri, imatha kukhudza magwiridwe antchito osakwanira komanso osakwanira kutaya. Chifukwa chake, magetsi a AC2400C amalimbikitsidwa.

Kuposa malembedwe okha ndi ma Datastaets

Maganizo enanso olakwika amafanana ndi manambala. Ogwiritsa ntchito kumapeto amakonda kudalira kwambiri pa kamera yosungirako kamera pomwe amasankha kamera usiku kuti mukwaniritse. M'malo mwake, ogwiritsa ntchito nthawi zambiri amasokeretsedwa ndi data matope ndikupanga zisankho zozikidwa pazitsulo m'malo mongoyendetsa kamera. Pokhapokha mutayerekeza mitundu yopangidwa ndi omwewo, omwe amasuta fodya amakhala osocheretsa ndipo sanenapo kanthu za mtundu wa kamera kapena momwe ingachitire izi, njira yokhayo ndikuwona momwe kamera imagwirira ntchito musanapange Chisankho chomaliza. Ngati ndi kotheka, ndi lingaliro labwino kuchita mayeso am'munda kuti muchepetse makamera oyembekezera ndikuwona momwe amachitira mderalo masana ndi usiku.


Post Nthawi: Meyi-07-2022