Ukuthatha ezi zihlungi zeLens ziya kuphucula iifoto zakho ze-DSLR
Emuva kwiintsuku zeekhamera zefilimu, abafaki beefoto baqhubezela inani elikhulu lokuhlunga ukujongana neemeko ezithile zokukhanyisa kunye nokongeza imiphumo. Kodwa, ngokuza kwe- DSLR kunye neempawu zabo ezifana nokulingana okumhlophe , ezininzi zezi fayile ziye zaphela. Nangona kunjalo, ezinye iifayile zihlala zixhamla kakhulu kwiifoto zedijithali, ingakumbi izihlungi ezifanelekileyo kwiilensi zekhamera ze-DSLR.
Izihlungi ezidume kakhulu zifakela kwiifayile, ezihamba phambili phambi kwee-LLR zekhamera zeekhamera. Ezi zivame ukuba zixabiso elifanelekileyo, kodwa kuya kufuneka uzithenge izihlunu kwindlela nganye yentambo yelensi, ebhalwe kwii-millimeters kwaye ifunyenwe phambi kwe-lens okanye ngasemva kwesikhomba se-lens. Ubungakanani bemigqa yentambo ukusuka kwi-48mm ukuya kuma-82mm kwi-DSLRs.
Enye into ekumele uyikhumbule kukuba nayiphi na i - lens wide-angle ifuna i-ultra-slim filters, eyanciphisa umngcipheko we-vignetting kwimida yeefoto.
Ngethamsanqa, ngokuza kwe-DSLRs, kukho izihlunu ezibalulekileyo kakhulu zokuthwala, kodwa nakhu ndiza kuhlala ndihlala kunye nam.
Uluhlu lwe UV
Nangona i-UV yelanga imisebe ingenzi iingxaki ezininzi kwi-DSLRs njengoko yenza ngeekhamera zefilimu, ukukhanya kwelanga kungasenza i-hue blueish phezu kwemifanekiso. Isicatshulwa se-UV singayilungisa le ngxaki ngaphandle kokunciphisa inani lokukhanya okubonakalayo kufinyelela kwisixhobo somfanekiso.
Nangona kunjalo, isizathu esona sizathu sokusebenzisa isihlunu se-UV kuzo zonke iilensi zakho kukuzikhusela ekudakeni, uthuli, kunye nokubaluleke kakhulu - ukulimala kwengozi. Ukuba ungenakunqwenela ukulahla i-lens kwaye uyabetha, uya kujonga kwiinkulungwane zemali eyonakalisa umonakalo. Kodwa izihlunu ze-UV ziqala ngeenxa zonke i-$ 22, ngoko ixabiso lokubuyisela liya kuba likhulu kakhulu! Thengisa i-UV ye-mactic filter, ngaphandle koko uza kubeka ingozi ye-lens flare nge-DSLRs. Ukuba ndiyakwazi kuphela ukufumana icebo elilodwa, oku kuya kuba njalo.
I-Polarizer yeSetyhula
Ukuba unomdla kumhlaba weefoto, isihlunu esikhombisayo siyimfuneko. Ngokucacileyo, i-polarizer iyanciphisa umlinganiselo wokukhanya oboniswayo oya kwi-camera sensor. Isibhakabhaka esibhakabhaka sibonakala sisibhakabhaka esicacileyo, kwaye ukubonakaliswa kwamanzi kungasuswa ngokupheleleyo. Unokukhetha umlinganiselo wokugqithisa owenzayo ngokuguqula ingxoweni yangaphandle yesihlungi, kuba le fayile ifake iindandatho zombini, enye ibambelela kwilenki yekhamera, kunye neefowuni yangaphandle yefomati ephikisayo. Oku kwongeza ukwanda kwee-degrees ukuya kwii-180 degrees.
I-downside yefowuni yokuhluthayo kukuba banciphisa kakhulu umlinganiselo wokukhanya ukufikelela kwintsimbi yekhamera, ngokuqhelekileyo ngamabini amabini okanye amathathu.
Inqaku lokugqibela elibalulekileyo ukuba uqaphele: Musa ukulingwa ukuba uthenge inketho engabiziyo "ye-polarator". Ezi aziyi kusebenza kunye neekhamera eziphethe i-autofocus okanye zisebenzisa i-TTL metering (ngokusebenzisa i-Lens) ... into eyenziwa yi-DSLRs.
I-Filter Yexinzelelo
Injongo yodwa yohlulo lweNtrality (NE) yeNtrality (ND) ukunciphisa inani lokukhanya elifikela inzwa yekhamera. Oku kunokuba luncedo xa kubonelelwe ixesha elide elingenakwenzeka kwiiparitha zokuvula. I-filter ye-ND isetyenziswa ngokuqhelekileyo xa ufotoza amanzi asebenzayo , kuba inceda ukudala umfanekiso ogqithisileyo kunye nomthendeleko. I-filter ye-ND ingasetyenziselwa ukudlulisa intshukumo ngokufaka i-blur kwizifundo ezihambayo kunye nokwenza izinto ezihambayo, ezifana neemoto, ezingabonakali nakwiimpawu zokuma komhlaba.
Iifayile ezidume kakhulu ze-ND zinciphisa ukukhanya ngamabini (ND4x okanye 0.6), ezintathu (ND8x okanye 0.9), okanye ezine (ND16x okanye 1.2) f-stops. Akunakwenzeka ukuba ufumane ukusetyenziswa okuninzi ukunciphisa oku kunje, nangona abanye abavelisi benza ii-filters ze-ND ezinciphisa ukukhanya ngamanqanaba ayisithupha.
Igraphicated neutral Uxilongo
Ukuxininiswa kweNkqubo engekho hlangothi (GND), okanye i-Split, iifayile zikhethiweyo, kodwa enye ingayinceda xa ungathandi ukwenza umsebenzi omningi wokupasa. Ezi zihlungi zinciphisa ukukhanya ngaphezulu komfanekiso uze uphumelele ngokugqibeleleyo ukuze uvumele ukukhanya okuqhelekileyo ukubetha inzwa yekhamera ukusuka kwingxenye ephantsi yomfanekiso. Ezi zihlomelo zivumela ukuthungatha imihlaba ngokukhanyisa okukhulu, ukuvumela isibhakabhaka kunye nokuqala ukuba zichazwe ngokuchanekileyo.
Ngokukhawuleza ukuphunyezwa kunye nokuxubana kwenzeka kuxhomekeke ekubeni irayiliti "ithambile" okanye "ikhuni" idibene, kwaye lo mbandela uhluka kakhulu kumvelisi waba ngumenzi. Kufuneka uyenze uphando lwakho ngaphambi kokuthenga ezi zihlomelo ngokujonga kwimimiselo kwiwebhusayithi yezenzi. Njengamafayile e-ND, ii-GND zifumaneka kwiintlobo ezahlukeneyo zokucima. Akufanele ufune okungaphezulu kweyodwa ukuya kweyesithathu ukuxuba umxube.