Okudingayo ukwazi nge-lens ye-camcorder.
Ngaphandle kokuhlola ukuthi lisondeza kangakanani ukuphakamisa, kungenzeka ukuthi awunaki kakhulu ilensi yekhamcorder. Ubani okhathalela ingqikithi yesilazi lapho kubonakala ubuso nokuthi GPS ikhulume ngani? Yebo, kufanele unakekele! I-lens ibandakanya indlela ikhamcorder yakho isebenza ngayo . Kunezinhlobo ezimbili eziyisisekelo zama-camcorder lens: lezo ezakhiwe-zibe ngamakhamera we-camcorder nama-accessory amalensi ongayithenga emva kweqiniso bese unamathisele ku-camcorder yakho ngezinkinga ezithile. Lesi sihloko sigxile kuma-lens akhiwe kuphela. Ungafunda kabanzi mayelana nama-camcorder lenses afinyelele lapha.
Ama-Lens Optical Zoom
I-camcorder ene-optical zoom lens inamandla okukhulisa izinto ezikude. Yenza kanjalo ngokuhambisa izingcezu zeglasi ngaphakathi kwe-camcorder. Amalensi okuzwakalisa ophathekayo ahlukaniswa nokuphakanyiswa okungakanani, ngakho-ke i-zoom ye-zoom ye-10x ingakhulisa into izikhathi eziyishumi.
Ama-Lens Focus Focus
I-lens yokugxila okugxilwe yilapho engadluli ukuzuza ukukhuliswa. "Lihleliwe" endaweni. Ama-camcorders amaningi ane-lens okugxilwe ngokugxila azokhipha "i-zoom yedijithali." Ngokungafani nomlingani walo optical, ukusondeza kwedijithali akukhulisi ngempela into ehlukile. Kulula ukutshala isimo ukuze "sigxile" esihlokweni esisodwa. Ukuze ufunde kabanzi mayelana nokuthi i-zoom yedijithali isebenza kanjani nokuthi kungani ihlukile (futhi iphansi) kokusondeza okubonakalayo, chofoza lapha.
Ukuqonda Ubude obugxile
Ubude obukhulu be-lens bubhekisela kude ukusuka enkabeni ye-lens kuze kube seqophelweni le-sensor yesithombe lapho isithombe sigxile khona. Kungani le ndaba? Yebo, ubude obugxile kuyindlela elula kakhulu yokukutshela ukuthi ukondeza kangakanani ikhamera yakho yekhamera nokuthi yikuphi okuyiyona engayitholayo.
Ubude bokugxila bubalwa ngamamitha. Ukuze uthole amakhamera ngamalensi okuzwakalisa obala, uzobona izinombolo ezimbili: owokuqala ukukunika ubude obugxile kumakhilomitha abubanzi futhi okwesibili kukunikeze ubude obunzulu obubekwe ekutheni kufakwe i-telephoto (okungukuthi uma usu "usondeza" noma wakhulisa isihloko). Uma uthanda izibalo, unganquma ukukhuliswa, noma "x" isici se-camcorder yakho ngokuhlukanisa inombolo yesibili ebangeni elibheke phambili. Ngakho i-camcorder ene-35mm-350mm lensi izoba nokusondeza kwe-10x.
I-Angle Angle Lenses
Inani elikhulayo lama camcorders seliqalile wonke ama-lens angama-wide lens . Akukho mithetho eqinile futhi esheshayo lapho i-lc ekhamini yangaphakathi ekhonjiwe ibhekwa njengama-wide-angle, kodwa ngokuvamile uzobona imodeli ekhangiswa njengaleyo uma inebude obugxile ngezansi kwe-39mm. Njengegama lisho ukuthi, i-angle lens ebanzi ingathatha indawo engaphezulu ngaphandle kwesibhamu sokuthi uthathe isinyathelo noma ezimbili emuva ukuze zithathe konke. Kuyinto inzuzo yangempela.
Ukuqonda Ukuvula
I-lens ilawula inani lokukhanya elidlulela enensheni besebenzisa i-diaphragm, ebizwa nangokuthi iris. Cabanga ngomfundi okhulisa ukuvumela ekukhanyeni noma ukuvimbela okungaphezulu ukuvumela ekukhanyeni okuncane futhi uzothola umbono wokuthi iris isebenza kanjani.
Ubukhulu bokuvulwa kwe-iris kuthiwa ukuvula. Amakhamera amaningi anembile azokuvumela ukuba ulawule usayizi wokuvula. Lokhu kubalulekile ngezizathu ezimbili:
1. Ukuvula okubanzi kwenza kube lula ukukhanya, kukhanyise isimo sakho nokuthuthukiswa komsebenzi ezindaweni ezibukeke kancane. Ngakolunye uhlangothi, ukuvula okuncane kwenza kube lula ukukhanya.
2. Ukulungisa ukuvula kwe-lens kukuvumela ukuthi ulungise ukujula kwensimu, noma ukuthi ingozi yesigcawu isigxile kangakanani. Ukuvula okubanzi kuzokwenza izinto phambi kwakho zigxilwe kahle kodwa ingemuva igxilile. Ukuvula okuncane kuzokwenza konke kugxilwe.
Abenzi be-camcorder bavame ukukhangisa ukuvula okukhulu - okusho ukuthi iris ivulekile kanjani ukuvuma ukukhanya. Okubanzi, kungcono.
Ungayitshela Kanjani I-Camcorder yakho & # 39; s Ukuvula?
Ukuvula kwe-camcorder kulinganiswa "ku-f-stop". Njengezinga lokusondeza kwe-optical, ungenza ezinye izibalo ukucacisa ukuvula okuphezulu kwe-camcorder yakho. Mane nje uhlukanise ubude obuningi bokubheka ububanzi be-lens (lokhu kuvame ukufakwa ngaphansi komgqomo wensiza). Ngakho-ke, uma une-lens 220mm ububanzi obungama-55mm, uzoba nokuvuleka okuphezulu kwe f / 4.
Ehlisa inombolo ye-f-stop, i-lens 'open open. Ngakho ngokungafani ne-zoom zoom, lapho ufuna inombolo ephezulu, ufuna i-camcorder ngokuvula okuphansi, noma inombolo ye-f-stop.