Sab qaum teb teeb, tseem hu ua Aurora Borealis, yog lub teeb pom kev zoo nkauj uas tshwm sim nyob rau saum ntuj ntawm Arctic Circle thaum lub hnub ci cua los ntawm lub hnub tuaj cuam tshuam nrog lub ntiaj teb qhov chaw sib nqus. Txhawm rau ntes cov zaub ntawm lub koob yees duab, koj yuav xav tau lub koob yees duab uas muaj hom kev siv. Npaj yuav coj koj cov duab thaum lub caij ntuj no, nyob hauv ib qho chaw uas muaj teeb pom kev me me thiab ntuj kaj. Siv sijhawm los teeb koj lub koob yees duab rau qhov chaw raug ua ntej koj thaij duab kom koj thiaj li tuaj yeem ntes cov teeb sab qaum teb 'cov xim tiag tiag.
Cov kauj ruam
Ntu 1 ntawm 3: Tua Zoo Li Cas
Kauj Ruam 1. Npaj kev mus rau Arctic Circle qee lub sijhawm thaum lub Kaum Ib Hlis thiab Lub Peb Hlis
Koj yuav tsum tau nyob hauv Arctic Circle kom pom lub teeb sab qaum teb, thiab lub caij ntuj no thaum lub Kaum Ib Hlis thiab Lub Peb Hlis yog lub sijhawm zoo tshaj plaws kom pom lawv vim tias tsaus ntuj li cas. Qee qhov chaw koj tuaj yeem mus thaij duab sab qaum teb yog Iceland, sab qaum teb Canada, sab qaum teb Alaska, thiab thaj tsam sab qaum teb ntawm Sweden, Norway, thiab Finland.
Kauj Ruam 2. Xaiv qhov chaw uas muaj teeb pom kev tsawg tsawg
Lub teeb los ntawm cov tuam tsev nyob ze yuav ua rau nws nyuab nyuab dua rau sab qaum teb teeb ntawm lub koob yees duab. Thaum koj xaiv lub tebchaws los thaij duab sab qaum teb teeb, nrhiav qhov chaw uas nyob deb ntawm tib neeg kev ua. Yog tias koj xav tau kev pab nrhiav qhov chaw zoo uas tsis muaj teeb pom kev ntau, tshawb xyuas Blue Marble Light Pollution Map ntawm
Abisko National Park hauv Sweden yog qhov chaw nyob hauv txoj kev ntawm sab qaum teb teeb uas nyob deb ntawm lub teeb pom kev
Kauj Ruam 3. Xaiv ib hmo thaum qhov kev kwv yees hu rau ntuj ceeb tsheej
Koj yuav tsis tuaj yeem thaij duab sab qaum teb yog tias muaj huab npog ntau. Sim tawm mus tua hmo ntuj thaum muaj 0-10 feem pua huab npog. Yog tias huab npog yog 20-30 feem pua, koj tseem tuaj yeem siv qee cov duab ntawm sab qaum teb teeb, tab sis lawv yuav tsis meej li. Txheeb xyuas huab cua huab cua hauv cheeb tsam kom paub dab tsi hmo ntuj thaum koj mus ncig yuav muaj lub ntuj ci tshaj plaws rau koj cov duab tua.
Kauj Ruam 4. Txheeb xyuas Kp-index ua ntej koj thaij duab
Kp-ntsuas ntsuas tus nqi ntawm kev ua haujlwm hauv nruab siab yuav muaj nyob rau txhua hmo. Qhov kev ua yeeb yam ntau hmo thaum koj thaij duab, muaj feem ntau koj yuav pom lub teeb sab qaum teb. Txhawm rau txheeb xyuas Kp-index, mus ntsib https://www.swpc.noaa.gov/products/planetary-k-index. Koj yuav tsum muaj peev xwm pom qhov kev ua haujlwm auroral rau hnub ntawd thiab hnub tom qab. Auroral kev ua haujlwm tau ntsuas ntawm qhov ntsuas ntawm 0-9, nrog 0 tsis muaj kev ua ub no thiab 9 yog qhov txiaj ntsig tseem ceeb ntawm kev ua si.
Yog tias Kp-index yog 4 lossis siab dua rau ib hnub tshwj xeeb, koj yuav tsum muaj peev xwm pom lub teeb sab qaum teb
Ntu 2 ntawm 3: Ntim Rau Koj Cov Duab Tua
Kauj Ruam 1. Nqa lub koob yees duab uas muaj hom ntawv siv
Txij li thaum koj yuav tua lub teeb sab qaum teb thaum hmo ntuj, koj yuav xav tau lub koob yees duab uas tso cai rau koj los kho qhov sib txawv ntawm tus kheej. Lub koob yees duab tsis siv neeg yuav tsis tuaj yeem hloov kho hauv qhov tsaus ntuj, yog li xyuas kom koj lub koob yees duab muaj phau ntawv teeb tsa lossis koj cov duab yuav tsis tig tawm.
- Yog tias koj tsis paub meej tias koj lub koob yees duab muaj hom kev ua haujlwm, kos lub log teeb nyob sab nraum lub koob yees duab. Yog tias ib qho ntawm qhov teeb tsa yog tsab ntawv "M," ces koj lub koob yees duab muaj hom kev ua haujlwm. Yog tias koj tseem tsis paub meej, txheeb xyuas tus tswv phau ntawv uas tuaj nrog koj lub koob yees duab.
- Tsis txhob hnov qab nqa roj teeb ntxiv rau koj lub koob yees duab.
Kauj Ruam 2. Nqa lub koob yees duab lub koob yees duab dav nrog koj
Lub koob yees duab lub koob yees duab dav dav tso cai rau koj ntes pom dav dua qhov koj tab tom yees duab. Sab qaum teb teeb ua ib feem loj ntawm lub ntuj, yog li yog tias koj xav ntes cov toj roob hauv pes ib puag ncig hauv koj cov duab, koj yuav xav tau lub lens dav-dav ntawm koj lub koob yees duab.
Kauj Ruam 3. Khaws lub koob yees duab los teeb tsa koj lub koob yees duab
Vim tias koj yuav xav tau lub sijhawm kaw ntev dua los thaij duab ntawm lub teeb sab qaum teb, koj lub koob yees duab yuav tsum nyob twj ywm zoo dua lossis cov duab yuav tig tsis pom. Lub koob yees duab yuav tiv thaiv koj lub koob yees duab los ntawm kev co thaum koj thaij duab. Txhua lub koob yees duab yuav ua haujlwm, tsuav nws ruaj khov thiab siab txaus rau koj ua haujlwm nrog.
Kauj Ruam 4. Nqa khaub ncaws sov
Koj yuav yees duab sab qaum teb teeb thaum hmo ntuj thaum muaj txias txias. Hnav ntau txheej hauv qab koj lub tsho, ris tsho hauv qab thiab thom khwm, phuam qhwv caj dab, thiab lub kaus mom lub caij ntuj no. Ntim ib khub ntawm cov hnab looj tes nyias hnav rau thaum koj tab tom kho koj lub chaw teeb tsa lub koob yees duab, thiab cov hnab looj tes tuab kom hnav rau lawv thaum koj tsis ua haujlwm nrog koj lub koob yees duab.
Ntu 3 ntawm 3: Noj Koj Cov Duab
Kauj Ruam 1. Qhib phau ntawv hom ntawm koj lub koob yees duab
Nrhiav lub log teeb nyob sab nraum koj lub koob yees duab thiab tig nws kom txog thaum lub cim "M" tau kab nrog kab dawb ntawm koj lub koob yees duab. Thaum phau ntawv hom tau qhib, koj yuav tuaj yeem hloov kho lwm qhov chaw ntawm koj lub koob yees duab.
Kauj Ruam 2. Teem koj lub koob yees duab tsom mus rau "infinity
"Qhov no yuav cia koj lub koob yees duab tsom mus rau yam uas nyob deb ntawm qhov deb, zoo li lub hnub qub thiab teeb sab qaum teb. Tsis txhob siv autofocus thaum koj thaij duab sab qaum teb lossis koj lub koob yees duab tsis tuaj yeem tsom mus. Txhawm rau teeb tsa koj lub koob yees duab tsom mus rau infinity, tig lub lens kom txog thaum kab dawb loj nyob rau sab ntawm lub lens tau kab nrog lub cim me me infinity (nws zoo li ib sab "8").
Kauj Ruam 3. Teem koj lub koob yees duab lub qhov siab kom qis tshaj plaws
Lub qhov taub, tseem hu ua f-stop, yog qhib lub lens ntawm koj lub koob yees duab li cas. Qhov qis lub qhov muag, qhov qhib koj lub lens yuav ntau dua. Koj xav kom lub lens ntawm koj lub koob yees duab qhib tau sai li sai tau thaum koj thaij duab sab qaum teb teeb. Txhawm rau teeb lub aperture ntawm koj lub koob yees duab, nias thiab tuav khawm ntxiv thiab rho tawm. Tom qab ntawd, tig cov lus txib ntawm koj lub koob yees duab mus rau sab laug kom qis lub qhov taub.
- Yog tias koj muaj lub sijhawm nyuaj kho lub qhov taub ntawm koj lub koob yees duab, hais qhia tus tswv phau ntawv rau kev pab.
- Kev teeb lub qhov taub ntawm f/2.8 yuav ua haujlwm rau thaij duab sab qaum teb.
Kauj Ruam 4. Khaws koj lub koob yees duab kaw nrawm ntawm 5-25 vib nas this
Qhov ceev ceev yog ntev npaum li cas koj lub lens qhib thaum koj thaij duab. Yog tias cov teeb sab qaum teb txav mus sai, teeb qhov ceev mus rau 5-7 vib nas this. Yog tias lub teeb sab qaum teb txav mus qeeb, teeb qhov ceev mus rau 10-25 vib nas this. Yog tias koj tsis paub yuav hloov kho qhov ceev ntawm koj lub koob yees duab li cas, siv tus tswv phau ntawv qhia.
Kauj Ruam 5. Teeb koj lub koob yees duab ISO ntawm 400-800 thiab kho raws li xav tau
ISO yog lub teeb pom kev ntau npaum li cas koj lub koob yees duab yuav tsum tau thaij duab. Qhov ISO siab dua, lub teeb tsawg dua koj lub koob yees duab xav tau. Ua ib qho kev xyaum tua ntawm sab qaum teb teeb nrog koj lub koob yees duab ISO teeb tsa ntawm 400-800. Yog tias qhov kev txhaj tshuaj zoo li tsaus ntuj, nce ISO mus rau 1200 thiab thaij lwm daim duab. Yog tias koj cov duab tseem zoo li tsaus ntuj, tsa ISO los ntawm lwm 400. Ua qhov no ntxiv kom txog thaum koj cov duab zoo li ci txaus.
Yog tias koj tsis paub yuav hloov kho ISO ntawm koj lub koob yees duab li cas, txheeb xyuas tus tswv phau ntawv qhia uas tuaj nrog nws
Kauj Ruam 6. Mount koj lub koob yees duab ntawm lub koob yees duab
Xyuas kom tseeb tias lub koob yees duab nyob ntawm qhov chaw khov kho yog li nws tsis txav txhua thaum koj thaij koj cov duab. Thaum koj lub koob yees duab tau teeb tsa, tig nws mus rau sab qaum teb teeb thiab toj roob hauv pes koj xav yees duab.
Kauj Ruam 7. Nqa koj cov duab
Siv qhov chaw deb tso koj cov duab kom koj tsis tas yuav kov lub koob yees duab txhua lub sijhawm. Yog tias koj tsis muaj lub chaw tso hluav taws xob deb deb, teeb tsa ncua 3-5 vib nas this ntawm koj lub koob yees duab kom qhov kev tshee tshee ua rau koj thaum koj nias lub qhov rooj kaw tsis cuam tshuam nrog cov duab. Tom qab koj thaij duab, saib nws ntawm koj lub koob yees duab screen thiab hloov kho koj lub koob yees duab teeb tsa raws li xav tau.
