Video: Dab tsi yog lub kaum ntse ntse telephoto lens?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A " xov tooj " lens yog ib qho uas muaj qhov ntev focal ntev dua li ib txwm, uas ua rau muaj qhov loj dua ntawm cov khoom thiab tsim kom muaj qhov nqaim ntawm qhov pom dua li qhov qub. lens . Cov ntsiab lus " dav dav "thiab xov tooj "tsis yog qhov tseeb hauv kev piav qhia a lens.
Ua raws li qhov xav tau, qhov txawv ntawm lub kaum sab xis dav thiab lub lens telephoto yog dab tsi?
Tsawg dua qhov pom tseeb qhov sib txawv ntawm lub kaum sab xis dav thiab telephoto lo ntsiab muag yog hauv ua rau qhov tob ntawm daim teb. Hauv dav dav, rau ib tug muab sensor, aperture thiab lub koob yees duab-rau-kev kawm deb, luv focal lengths ua loj qhov tob ntawm teb tshaj telephoto lo ntsiab muag.
Tsis tas li ntawd, dab tsi yog qhov dav dav lub koob yees duab lens? Yog li txhua yam dav dua 50mm (tag nrho ncej) lossis 35mm (APS-C) yog suav tias yog lub kaum sab xis dav . Qhov tsawg dua tus naj npawb forfocal ntev, qhov dav nws yuav yog, xws li; 15mm uas yog super dav (tag nrho ncej) los yog 10mm (tshwj xeeb lens ua rauAPS-C koob yees duab nkaus xwb).
Tom qab, lo lus nug yog, dab tsi yog lub kaum sab xis dav siv rau?
A wide angle lens tso cai rau koj kom haum ntau rau hauv theframe, ua rau lawv zoo meej rau kev ntes cov scenes xws li expansivelandscapes lossis cramped interiors. Yooj yim muab, a dav anglelens yog ib qho uas muaj qhov dav lub kaum sab xis ntawm kev pom dua li anormal lens.
Lub kaum ntse ntse thiab telephoto lub koob yees duab iPhone yog dab tsi?
Telephoto lo ntsiab muag nyob rau hauv ib daim ntawv qhia tag nrho koob yees duab feem ntau yog 70 mm lossis ntev dua. Ntawm cov qoob loo-sensor koob yees duab , uas yuav yog li 45 mm lossis ntev dua. Dav dav lenses ntawm ib tug fullframe koob yees duab feem ntau yog 28 mm lossis luv dua.
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