Monga momwe mutuwo ukusonyezera,magalasi a varifocalndi abwino kwambiri pojambula zithunzi za nyama zakuthengo ndipo pakadali pano ndi imodzi mwazosankha zodziwika kwambiri pa kujambula zithunzi za nyama zakuthengo. Kusinthasintha kwa kutalika kwa focal, liwiro loyang'ana, komanso kukhazikika kwa zithunzi za ma lens a varifocal zimathandiza ojambula kujambula mwachangu nthawi yochepa ya nyama pamene akusunga mtunda wotetezeka, zomwe zimawathandiza kuthana ndi malo ovuta komanso osinthasintha achilengedwe.
1.Ubwino waukulu wamandala a varifocales yowombera nyama zakuthengo
(1)Palibe chifukwa chosinthira magalasi pafupipafupi: Zinyama zakuthengo nthawi zambiri zimakhala zosavuta kuzipeza, ndipo mungaphonye chithunzi chofunikira ngati musintha ku lenzi yokhazikika. Kugwiritsa ntchito lenzi ya varifocal kumakupatsani mwayi wopanga chithunzi mwachangu mwa kusintha kutalika kwa focal, monga kusintha kuchokera ku panoramic view kupita ku close-up, popanda kusintha magalasi.
(2)Yosinthika malinga ndi zosowa zosiyanasiyana zowomberaPogwiritsa ntchito lenzi ya varifocal, mungagwiritse ntchito mapeto a telephoto (monga 200mm ndi kupitirira apo) kujambula zithunzi zapafupi za nyama zakutali, kapena kugwiritsa ntchito mapeto a telephoto apakati (monga 70-100mm) kujambula zithunzi za nyama ndi malo awo, kuwonetsa zochitika zachilengedwe.
(3)Chepetsani katundu wa zidaPoyerekeza ndi kunyamula magalasi angapo okhazikika (monga 300mm, 400mm, 600mm), lenzi imodzi ya telephoto varifocal (monga 200-600mm) imatha kuphimba kutalika kosiyanasiyana kwa ma focal, kuchepetsa kulemera komwe kumanyamulidwa ndikuthandizira kutsatira ndi kujambula mtunda wautali kuthengo.
(4)Chepetsani zovuta zowombera: Mukajambula nyama zakuthengo, nthawi zambiri zimakhala zofunikira kubisala, zomwe zimapangitsa kuti ojambula zithunzi azivuta kufika pafupi ndi nyamazo. Mapeto a telephoto a lenzi ya varifocal angagwiritsidwe ntchito kujambula kuchokera patali, kupewa kusokoneza nyamazo, kuchepetsa zovuta zojambulira, komanso kuonetsetsa kuti munthu ali ndi chitetezo.
Ubwino wogwiritsa ntchito magalasi a varifocal kujambula zithunzi za nyama zakuthengo
2.Momwe mungasankhiremandala a varifocalKodi ndi yoyenera kujambula zithunzi za nyama zakuthengo?
Kujambula zithunzi za nyama zakuthengo kulinso ndi zofunikira zinazakemagalasi a varifocal; si magalasi onse a varifocal omwe ndi oyenera. Zinthu zotsatirazi ziyenera kuganiziridwa mosamala:
(1)Fkutalika kwa maso
Kutalika kwa focal ndiye chinthu chofunikira kwambiri posankha lenzi ya varifocal; kutalika kwa focal nthawi zambiri kumaonedwa kuti ndikwabwino kwambiri pojambula zithunzi za nyama zakuthengo. Oyamba kumene nthawi zambiri amasankha kutalika kwa focal kwa 70-300mm kapena 100-400mm, koyenera kujambula nyama zazikulu zopanda mantha kapena patali, zomwe zimathandiza kuti pakhale kusiyana pakati pa kujambula zithunzi za nyama ndi malo.
Akatswiri ambiri ojambula zithunzi amasankha kutalika kwa focal monga 200-500mm kapena 150-600mm, koyenera kujambula nyama zazing'ono kapena mbalame patali. Magalasi ena amagwirizananso ndi ma teleconverter, omwe amawonjezera kutalika kwa focal kufika pa 800mm kapena 1200mm, zomwe zimapangitsa kuti telephoto ikhale yabwino kwambiri.
(2)Mpata
Kukula kwa chitseko ndi chinthu chofunikira kuganizira posankha lenzi ya varifocal. Ma lenzi otseguka osinthika monga f/4.5-5.6 ndi f/5-6.3 ndi opepuka komanso otsika mtengo, zomwe zimapangitsa kuti anthu ambiri asankhe. Komabe, ali ndi zitseko zazing'ono kumapeto kwa telephoto, zomwe zimafuna kuwala kwakukulu.
Magalasi otseguka nthawi zonse, monga f/2.8 ndi f/4, amapereka mphamvu koma ndi okwera mtengo komanso olemera. Chitseko chachikulu chimawonjezera kuwala komwe kumalowa, kuonetsetsa kuti shutter ikuyenda mofulumira, kupewa zithunzi zosawoneka bwino, komanso kumapanga malo ozama kwambiri, kuwonetsa munthuyo, monga nyama.
Chitseko ndi chinthu chofunikira kuganizira posankha lenzi ya varifocal
(3)Kukhazikika kwa chithunzi ndi magwiridwe antchito a autofocus
Chithunzi cha TelefotomagalasiZimakhala zosavuta kuzimiririka chifukwa cha kugwedezeka kwa kamera, zomwe zimapangitsa kuti kukhazikika kwa chithunzi chojambulidwa mkati kukhale kofunika kwambiri! Zimakuthandizani kugwiritsa ntchito liwiro locheperako la shutter mukajambula zithunzi za m'manja kuti mupeze zithunzi zakuthwa. Nthawi yomweyo, makina ofulumira komanso chete odziyimira pawokha omwe amatsata molondola zinthu zoyenda ndi ofunikiranso pogwira mbalame zomwe zikuuluka kapena nyama zothamanga.
(4)Kulemera ndi kunyamulika
Kujambula panja nthawi zambiri kumafuna kuyenda pansi, ndipo kulemera ndi kukula kwa lenzi kumakhudza mwachindunji mphamvu zolimbitsa thupi. Ngati mukufuna kujambula paulendo wautali, muyenera kuganizira kapangidwe kopepuka ka lenzi kapena kugwiritsa ntchito thupi la lenzi ya carbon fiber. Ngati kuli kofunikira, muyeneranso kugwiritsa ntchito tripod yopepuka kapena monopod.
Kulemera ndi kusunthika ndi zinthu zina zofunika kuziganizira pa magalasi a varifocal.
(5)Kukana kwa nyengo ndi kudalirika
Pojambula zithunzi kuthengo, kukana kwa lenziyo kuti isagwere nyengo kuyeneranso kuganiziridwa. Lenziyo imagwiritsa ntchito kapangidwe ka mkati ka zoom (kutalika kwa lenzi sikusintha pojambula zithunzi) kuti ithandize kusunga malo okhazikika a mphamvu yokoka komanso kupereka chitetezo chabwino cha fumbi ndi chinyezi; kapangidwe kake kolimba ku fumbi ndi madontho a madzi kangakhalebe kodalirika m'malo ovuta monga nkhalango zamvula ndi udzu.
Pomaliza,magalasi a varifocal, chifukwa cha kusinthasintha kwawo, kusavuta kwawo, komanso kukhazikika kwa zithunzi zowoneka bwino, zakhala chimodzi mwazosankha zazikulu za lenzi pojambula zithunzi za nyama zakuthengo.
Pojambula, kusinthasintha kwa zoom kungagwiritsidwe ntchito kuthana ndi kusadziwikiratu kwa nyama, kuphatikiza ndi mphamvu ya telephoto kuti iwonetse mutuwo pamene ikusunga nkhani ya chilengedwe; kuphatikiza ndi autofocus yothamanga kwambiri, ukadaulo wokhazikika wa zithunzi, ndi kapangidwe koyenera, kuchuluka kwa kupambana kwa kujambula zithunzi za nyama zakuthengo kumatha kukwera kwambiri.
Nthawi yotumizira: Mar-31-2026
