Kodi Numeri pa Zojambula Zojambula Zakomera Zimatanthauza Chiyani?
Q: Kodi nambala ya makina opangira makamera amatanthauzanji? Kodi kutanthauzira kwazithunzi za kamera ndi chiyani?
A: Kumvetsetsa makensulo a makamera, makamaka makina opanga makamera a digito, kungakhale njira yonyenga. O zowona: Mawerengedwe omwe ali ndi makina opanga mafilimu amawoneka ophweka. Chithunzi cha 10X chojambula chojambulira chaching'ono ndi chokongola kwambiri, pamene 50X yojambula zojambulazo zimakhala ndizitsulo zazikulu zojambula. Ndipo mukhoza kuwombera kutali kwambiri ndi lens lalikulu lokopa kusiyana ndi kansalu kakang'ono kojambula.
Ngakhale kuti malingaliro amenewo ndi ophweka mokwanira kuti azijambula zithunzi, samanena nkhani yonse. Kuti mumvetse zithunzi zofunikira, kukhala ndi kumvetsetsa kwazithunzi za kamera n'kofunika. Pitirizani kuwerenga kuti mudziwe zambiri za makina opangira makamera.
Tsambani Lens Definition
Kuyeza kwazithunzi zamakono kwa kamera yadijito kumatanthauza kuchuluka kwa kukula kwa lensulo. Ziwerengero zingakhale zosokoneza, komabe, chifukwa ena opanga makina amatsindika miyezo yosiyanasiyana, kuphatikizapo zojambula zowoneka, zojambula zamagetsi , ndi zojambula zofanana. Pitirizani kukumbukira izi pamene mukugwira ntchito pazithunzi zamakono:
Zojambula zowoneka ndizomwe zimayendera zofunikira kwambiri chifukwa zimayendera kutalika kwake kwa lens, pogwiritsa ntchito luso lomanga lens. Pamene kamera imasuntha magalasi mu lens, kutalika kwake kwa lens kumasintha, kuzipereka kutalika kwa kutalika komwe mukufuna mu lens zoom.
Makina opanga zojambula zamakono ndi zofanana ndi zomwe zimachitika kuti mapulogalamu a kamera apange. Mmalo mosuntha zinthu zakuthupi za lens kuti zisinthe kutalika kwake kwa lens, mapulogalamu a kamera akukweza chithunzicho monga momwe amachitira pawindo la LCD, kupanga chinyengo cha lens losakaniza. Chifukwa chiwerengero cha kujambula kwa digito chimangowonjezera chithunzichi, chikhoza kupangitsa kuti chithunzicho chisamawonongeke, kotero kuti kugwiritsa ntchito zojambula zadijito sikuvomerezedwa pokhapokha ngati mulibe chisankho china. Kamera ya foni yamakono imangogwiritsa ntchito zojambula zedi.
Ena opanga makamera akugwiritsabe ntchito liwu limodzi kuphatikiza zojambula malonda awo, ngakhale ili ndi nthawi yakale. Zojambula zofanana zimatanthawuza kuyeza kwazithunzi zazithunzi zonse zojambula zojambula ndi zojambula zamagetsi zowonjezera pamodzi.
Kumvetsetsa Zojambula Zowonjezera Nambala
Kumbukirani izi pamene mukugwira ntchito kumalonda opanga zojambula: Zonse zojambula zosiyana ndi zosiyana.
Mwachitsanzo, makina ojambula 10X akhoza kukhala ndi mafilimu 35mm ofanana ndi 24mm-240mm. Koma katemera wina wa 10X pa kamera ina akhoza kukhala ndi 35mm-350mm ofanana. (Nambalayi iyenera kulembedwa pazithunzi za makamera.) Kamera yoyamba idzakupatsani mphamvu zowonjezera bwino koma ntchito yochepa ya telephoto kuposa yachiwiri kamera.
Makina opanga zojambula amatha kugwiritsa ntchito pafupifupi china chirichonse chachikulu ndi telephoto focal kutalika. Zojambulazo zimakhala zosiyana pakati pa ziwirizi, mosasamala kanthu za mawonekedwe ake aakulu kapena telephoto.
Ngakhale makina opanga 50X opanga zojambula amamveka ngati chinthu chochititsa chidwi kwambiri ndipo mwina mungaganize kuti zimapatsa telephoto mphamvu, sangathe kuwombera pa telephoto malo aakulu ngati a 42X optical zoom lens. Ngati makina opanga opanga 50X opangira mawonekedwe aatali 20mm, malo ake opangira telephoto adzakhala 1000mm (20 wochulukitsidwa ndi 50). Ndipo ngati makina opanga 42X opangira zowonongeka ali ndi malo ozungulira 25mm, malo ake opangira telephoto angakhale 1050mm (25 wochulukitsidwa ndi 42). Onetsetsani kuti musamangoganizira zojambula zowonongeka chabe, koma kuwonetseratu kwapamwamba pa telephoto.
Ndiyeneranso kukumbukira kuti mayendedwe ena opanga zojambula sali nambala yozungulira. Mukhoza kupeza zojambula zojambula za 4.2X ndi kamera, monga kutalika kwa 24-100mm kutalika muzithunzi zojambula.
Kuti mumvetse bwino zowonongeka zamakono mu makamera a digito, yesani kuwerenga "Kumvetsa Lens Zoom" .
Pezani mayankho ochuluka kwa mafunso a kamera wamba pamasamba a mafunso a kamera.