Lub koob yees duab telephoto yog lub koob yees duab uas ua rau pom kev zoom. Lub lens periscope yog qhov zoo sib xws ntawm cov qauv telephoto lo ntsiab muag, tab sis muaj lub voj voos qhib es tsis txhob siv lub voj voog. Lub lens periscope muaj txiaj ntsig zoo rau cov toj roob hauv pes thiab lwm yam xwm txheej thaum koj xav pom qhov dav tab sis tsis tuaj yeem ze dhau. Koj tuaj yeem siv nws rau kev thaij duab macro.
Lub koob yees duab Telephoto yog dab tsi thiab nws ua haujlwm li cas?
Lub koob yees duab Telephoto yog qhov zoo tshaj plaws rau kev ntes ze-ups ntawm cov khoom xws li txhua qhov zoom lo ntsiab muag. Lub lens telephoto tshem tawm qhov sib txawv ntawm lub thoob los tsim cov duab zoo nkauj. Tab sis qhov downside yog tias nws tuaj yeem nyuaj rau siv rau kev txhaj tshuaj dav dav, vim nws yuav tsum tau ua kom pom tseeb ntawm cov koob yees duab txheem. Ib lub lens telephoto nkaus xwb txaus rau feem ntau lub hom phiaj, tab sis yog tias koj tab tom nrhiav kev thaij duab lossis duab toj roob hauv pes, koj yuav xav tau lub xov tooj zoo nkauj.
Lub koob yees duab telephoto tso cai rau koj mus ze rau qhov chaw nyob deb thiab ntes cov ntsiab lus zoo. Siv lub lens telephoto yog qhov zoo tshaj plaws rau cov tsiaj qus nyob deb lossis thaj chaw epic. Nws kuj ua haujlwm zoo rau kev tua neeg, roob scapes, thiab cityscapes. Nws tuaj yeem siv tau rau txhua qhov xwm txheej, suav nrog sab hauv tsev thiab sab nraum zoov. Nws yog qhov zoo tagnrho rau kev thaij duab ntawm cov xwm txheej uas koj xav sau, xws li concerts lossis ntaus pob ncaws pob. Nws kuj tseem siv tau thaum koj xav tau zoom rau ntawm ib qho kev kawm ze heev.
Thaum lub koob yees duab txheem xws li Nikon lossis Canon, lub koob yees duab telephoto txuas ntxiv thaum siv, nws ua rau tsis muaj kev txav ntawm lub xov tooj smartphones. Nws yog siv los tsim cov nyhuv bokeh zoo nkauj ntawm hom duab.
Lub koob yees duab Periscope yog dab tsi thiab nws siv rau dab tsi?
Lub koob yees duab periscope muaj zog tshaj plaws yog nrov nrog cov kws yees duab portrait. Cov cuab yeej no tso cai rau koj los ze zog rau koj qhov kev kawm thaum ua tiav qhov kev txhaj tshuaj tsawg dua. Lawv kuj yog qhov zoo tshaj plaws rau kev yees duab, ua tsaug rau lawv qhov kev txwv qhov tob ntawm kev ua kom pom tseeb thiab tom qab qhov muag plooj. Huawei's P40 Pro +, uas muaj tsib lub koob yees duab sensors, khav theeb 10x periscope lens, uas yog sib npaug rau 240mm ntawm lub koob yees duab puv.
Vim tias lawv cov qauv tsim tshwj xeeb, cov koob yees duab periscope muaj peev xwm kho qhov muag zoom dua li cov koob yees duab ib txwm. Lawv muaj cov duab plaub lossis L-shaped qhib rau sab nraud, uas ntog mus rau lub prism hauv lub module. Lub prism khoov lub teeb ci mus rau 90 degrees thiab tom qab ntawd dhau los ntawm lub lens thiab sensor los tsim cov duab meej. Qhov ntev ntawm qhov qhov, qhov siab dua qhov kho qhov muag zoom ntau. Qhov siab tshaj plaws periscope lub koob yees duab optical zoom ntau yog 5X.
Lub koob yees duab periscope yog ib lub raj nrog ob lub 45-degree lo ntsiab muag ntawm qhov kawg. Tus neeg siv ntsia mus rau hauv ib qho kawg thiab pom cov duab cuam tshuam los ntawm lwm qhov. Lub periscope lens siv ib daim iav los khoov lub teeb 90 degrees. Yog li, daim duab tsis zoo li DSLR, tab sis nws tseem zoo dua li lub koob yees duab taw tes thiab tua. Tab sis koj yuav tsum paub tias cov koob yees duab periscope feem ntau muaj cov duab daws teeb meem tsawg. Koj tuaj yeem nyeem qhov zoo ntawm Periscope lub koob yees duab ntawm no.
Qhov sib txawv ntawm lub koob yees duab smartphone zoom lo ntsiab muag
Lub periscope lens yog siv los saib ib ncig ntawm obstacles. Nws muaj prism lossis iav hauv nws qhov kev tsim kho. Nws qhov ntev ua rau nws pom tau tom qab ib qho khoom. Lub periscope muaj txiaj ntsig zoo rau kev ua kis las lossis lwm yam dej num uas xav tau kev pom dav dav. Lub periscope tau siv rau ntau xyoo hauv cov tsheb armored thiab tsis txaus ntshai rau kev siv. Dhau li ntawm qhov ua tau zoo, nws kuj tuaj yeem ua qhov kev sim ua kom lom zem.
Telephoto thiab periscope koob yees duab sib txawv ntawm qhov loj me. Lub lens periscope muaj qhov me me ntawm qhov pom thiab qis dua pixel suav. Nws cov sensor feem ntau yog muab tso rau kab rov tav. Yog li ntawd, lub sensor loj me me. Qhov no txwv cov teeb pom kev zoo uas nkag mus rau lub koob yees duab. Cov duab zoo ntawm lub periscope feem ntau tsis zoo, yog li koj yuav xav thaij duab nrog lub lens dav yog tias koj xav tau qhov ze ntawm cov khoom txav.
Raws li kev kho qhov muag zooming muaj kev txhawj xeeb, periscope lo ntsiab muag yog qhov zoo tshaj plaws rau cov kws yees duab toj roob hauv pes thiab muaj ntau yam zoo. Lub lens periscope tsis yog ib txwm siv telephoto lens. Nws lub peev xwm optical zooming yog ntau dua li lub lens telephoto. Lub koob yees duab yuav xav tau ntau qhov chaw kom haum rau lub sensor. Lub lens periscope yog kim dua. Tab sis nws muaj ntau yam thiab cov txiaj ntsig.
Lub koob yees duab periscope muaj qhov nqaim ntawm qhov pom thiab xav tau ntau lub teeb pom kev zoo. Nws aperture yog me dua li lub lens telephoto. Nws lub shutter xav tau ntau lub teeb pom kev zoo los tsim cov duab zoo. Nws lub lens yuav ib txwm txo cov duab zoo thaum nws zooms hauv. Tab sis Suav manufacturers tau sim nrog periscope koob yees duab rau xyoo. Cov Huawei P40 Pro+, Piv txwv li, muaj 10x omnidirectional reticle ib lub lens periscope uas sib npaug rau 240mm hauv lub koob yees duab puv npo.
Periscope lo ntsiab muag muaj peev xwm ua kom muaj zog zoom. Lawv yog cov zoo tshaj plaws siv rau shooting nyob deb scenery. Tab sis qhov tsis zoo ntawm periscope lo ntsiab muag yog tias lawv tsis haum rau txhua qhov xwm txheej. Qee qhov periscope lo ntsiab muag tej zaum yuav kim dhau thiab tsis haum rau feem ntau cov smartphones. Qee tus ntawm lawv zoo dua rau kev thaij duab telephoto, tab sis yog tias koj xav tau cov duab ntawm thaj chaw deb, lub lens tera-periscope yog qhov kev xaiv zoo dua.
Zoom Lenses rau Smartphones
Rau kev saib zoo dua, koj tuaj yeem yuav zoom lo ntsiab muag rau smartphones. Muaj ob peb hom sib txawv thiab lawv txhua tus tuaj nrog qhov sib txawv ntawm qhov kev nthuav dav. Ib qho kev xaiv nrov tshaj plaws yog cov Samsung Galaxy S9 +, uas muaj 4K daws teeb meem. Txawm li cas los xij, yog tias koj xav paub ntau ntxiv txog kev yees duab, ces koj yuav tsum xav txog lub koob yees duab iPhone lossis Android. Xiaomi yog lwm qhov kev xaiv uas yuav haum rau koj cov kev xav tau. Xiaomi hom tau tsim cov xov tooj pheej yig suav nrog cov koob yees duab zoo nrog lub ntsej muag zoom. Xyuas lawv tawm!
Qhov nrov zoom lens rau lub smartphone yog Sony QX10. Qhov no yog tus qauv muaj zog tshaj plaws, nrog 10X optical zoom, lossis 25-250mm sib npaug. Nws yog haum rau ntau yam kev yees duab niches, thiab yog sib xws nrog feem ntau niaj hnub smartphones. Nws kuj tseem muaj lub CMOS sensor thiab tua ntawm 18MP thiab muaj kev ruaj ntseg built-in. Cov no yog ob yam tseem ceeb los nrhiav thaum txiav txim siab lub koob yees duab smartphone yuav yuav.
Lub lens sab nraud telephoto yog qhov kev xaiv zoo rau lub xov tooj smartphone. Nws tuaj yeem muab qhov ntev ntawm 12x. Lub lens no tseem muaj txiaj ntsig zoo li monocular rau kev thaij duab. Lub lens telephoto tuaj yeem txuas nrog lub xov tooj ntawm tes siv cov clip, uas txhais tau tias nws tsis yog tsuas yog ib qho khoom siv zoo rau kev thaij duab nrog koj lub xov tooj, tab sis kuj tuaj yeem txhim kho cov duab zoo. Yog tias koj tab tom nrhiav lub lens zoom rau koj lub smartphone, koj tuaj yeem pom lub kaum sab xis dav, macro, thiab telephoto lens uas yuav txhim kho koj qhov kev paub. Cov lo ntsiab muag no haum rau smartphones txog li kaum millimeters tuab. Lawv muaj ib tug roj hmab-kawg ntsia hlau los txuas rau lub xov tooj. Nelomo universal lens kit kuj suav nrog microfibre tu daim ntaub thiab cov ntaub ntawv tiv thaiv. Cov khoom siv lub xov tooj lens kuj sib xws nrog iPhones.
Zoom lo ntsiab muag tuaj yeem txuas rau koj lub smartphone los ntawm ib qho clip. Lub telephoto lens muaj lub koob yees duab zoo nkauj kho vajtse. Nws muaj 108MP lub koob yees duab loj nrog OIS, 10MP periscope telephoto nrog OIS, thiab 12-megapixel ultrawide lub koob yees duab nrog dual-pixel PDAF. Ntxiv mus, nws txhawb Super Steady Video.
