CPL-tace tare da madauwari rabuwa. photography darussa

Mene ne wani polarizing tace CPL? Wannan shi ne mai muhimmanci da kayan aiki da kowane daukar hoto ya kamata da in da jakar. Kamar yadda Polarizer shafi hoton? Domin ci gaba diraya game da wannan lokacin, sau da yawa sosai muna bukatar wani dogon lokaci zuwa gwaji. A wannan labarin, za ka koyi yadda za a bugun wannan tsari kamar yadda wannan samfurin iya yin aiki da sauki (da kuma wani lokacin cuta) a cikin yanayi daban-daban.

Ina ne a haɗe CPL-Filter? Shi ne ko da yaushe a gaban gaban ruwan tabarau. Yaya na'urar aiki? Yana tace kai tsaye gani na rana ta haskoki a karkashin opredelennіmi kusassari. Yana ba daga wurin, kamar yadda sauran haske tabarau ne sau da yawa m, kuma mafi dabam. Aiki tare da wannan na'urar yana bukatar wani karuwa a fiddawa (as wasu haskoki ake deflected). Sarrafa da tacewa kwana ne saboda da juyawa na'urar. Daga gano line-of-view rãnã dangi zuwa da ƙarfi daga cikin sakamako dogara.

juyawa tace

Lokacin amfani da CPL-tace, za ka iya samun matsakaicin sakamako? Kawai idan layi na view na kamara shi ne perpendicular hasken rana. Yana yiwuwa su yi tunanin, aika da manuniya a rana, da babban yatsa a lokaci guda ajiye shi a wata dama kwana. Duk da yake ka juya hannu, nuna zuwa hasken rana, wani shakka, wadda za ta nuna yatsa da zai ƙayyade line daga cikin mafi girma da sakamako na polarizer.

Duk da haka, da cewa CPL-tace za ta samar da sakamako mafi kyau a cikin wadannan yankunan ba dole ba ne ya nufin cewa shi ne a cikin su aikinsa za a mafi m. Cap rabuwa zai bayyana a lokacin da shi rotates, wanda ya musanya masa a kwana tare da girmamawa ga hasken rana. Domin fuskanci aikin tace, shi ne mafi kyau a juya shi, kallon kamara nuni ko a cikin ta viewfinder.

A cikin aikace-aikace na da fadi da kwana ruwan tabarau za a iya samu m sakamakon, tun da rabuwa effects dogara ne a kan kwana. Wani sashi na hoto za a iya sanya a dama kwana da rana, da kuma sauran - zuwa gare shi. A wannan yanayin, a gefe daya na photo polarizing sakamako ba zai zama m, amma a kan sauran - ana iya gani.

A fili yake cewa fadi-kwana ruwan tabarau ajizai ne. Duk da haka, juya "polyarika" sakamako iya, wani lokacin yin rayuwa mafi. Sau da yawa sosai, kwararru sa mafi pronounced sakamako na rabuwa kusa da gefen ko kusurwa na image.

description

Masu daukan hoto don ƙirƙirar high quality-images yin amfani da iri biyu tace: mikakke kuma madauwari rabuwa. Wadannan na'urori ana ware da kuma raba zones arziki polarized nuna haske. Tare da su taimako, cire kasa, za ka iya sako fitar da mai haske da tsananin haske, ko kama da wuri mai faɗi a waje da taga ba tare da kansa gani a cikin gilashin.

Ƙirgar tace yi wani sauki aiki - da suka modified haske ne haƙĩƙa, sun shige a wani guda jirgin sama. Na'urori tare da madauwari rabuwa ba damar haskoki, modified da'irar. Su wani refraction na haskoki ne tuba zuwa cikin siffar zobe. A gaskiya ma, cikin madauwari "polyarik" ba ya tsoma baki da autofocus sa unmistakably cinta daukan hotuna, da kuma za a iya shigar a kan duk kyamarori (ciki har da mazan).

Kamar wancan ne maras so da tsananin haske ma shafe ta, kamar yadda a cikin na'urar da mikakke rabuwa. CPL-tace ba wani "tsabta" siffar zobe refraction haske kawai a wata takamaiman zango. A kalaman farantin Tantancewar hanya bambanci tsakanin Hakika na da sauki, kuma m haskoki ne daidai da kwata na ta tsawon. Gama dukan sauran wavelengths da na'urar zai nuna maka wani elliptical tasiri.

Madauwari tace wuya ga sauran, don haka su kudin ne mafi girma. A kan na waje na na'ura sanya al'ada mikakke na'ura, da kuma tare da ciki - kwata-kalaman farantin cewa sabobin tuba mikakke rabuwa a cikin siffar zobe.

photo

Polarizing tace for kamara - shi ta kayan, tsara don kawar da maras so effects (tunani, da tsananin haske), haske rage (tare da wani layi daya da karuwa a jikewa) daga sama da sauran abubuwa a cimma ado a raga. Sun yi kama da talakawa tace, amma suna da gaba da raya rabo na daidaita kauri wanda zai iya juya da yardar kaina.

Kamar yadda amfani CPL-Filter? Menene wannan na'urar? Its raya part aka ci da gumi da ruwan tabarau, da ake so sakamako ne aka zaba ta hanyar juya gaban rabin a wani kwana. A gaban kashi iya sanye take da wani ciki thread, wanda aka a haɗe via wani haƙiƙa cover Threaded hoods ko wasu rariyoyin cewa shi ne wani undeniable amfani.

Daban-daban segments iya ba shine abubuwa haske da kusurwoyi mabambanta daga rabuwa, wanda synchronously kashe daya tace shi yiwuwa. Bugu da ƙari kuma, a cikin firam na zubi articles iya zama wani babban lambar. A irin haka ne, amfani da mafi consistently juya polarizing tace, kuma shi, fãce baya, dole ne a linearly polarized. Wannan wajibi ne, saboda da na gani compensator sanya a cikin wani madauwari tace hana nasara daga cikin sakamako na sauran na'urorin da cewa za a iya sanya a baya shi.

A mafi shahara a polarizing tace to ruwan tabarau? Its Tantancewar yawa da aka kullum ayi a cikin kewayon daga biyu zuwa biyar. Akwai iya zama launi murdiya. Kullum, wasu na'urorin da wani digo zuwa dakatar a Violet-blue yankin, saboda da siffar samu tare da wani kore tint. Cheap wayoyin iya haifa lafiya daki-daki, m. "Polyarik" tare da "m" UV-inhibiting tace an sarrafa na'urar a mafi hotunan.

bayani

Yawanci, a polarizing tace aka samar a cikin nau'i na biyu faranti da aka yi da gilashi. Tsakanin su aka sanya polaroid fim da ciwon mikakke dichroism. Wannan abu ne da wani Layer na cellulose acetate hada da wani m yawan kankanin microlites herapathite (quinine sulfate iodide fili).

Amfani da irin aidin-polyvinyl fim da daidaitacce polymer sarƙoƙi synchronously. Wayarwa microlites m view na lantarki filin, da kuma polymer sarƙoƙi ake nufi ga inji mikewa. Madauwari tace, a Bugu da kari, sanye take da wani Tantancewar compensator - kwata-kalaman lokaci farantin. Ta hanyar wannan bangare za a iya ƙaddara hanya bambanci na biyu haskoki fara. Yana aiki daidai da sabon abu na biyu refraction haske a lu'ulu'u.

A hira da haske

Simple kuma na kwarai haskoki da daban-daban gudu. Su Tantancewar hanyar tsawo ma bambanta. Saboda haka, su karɓo su bugun jini bambanci auna kauri daga cikin crystal, ta hanyar abin da. An shigar a kan hanya na tafiya katako polarizer da kuma juya su a lokacin taron, har irin wannan lokaci kamar yadda ta oscillation axis ba zai zo daidai da na gani da gatura.

A wannan wuri, da kwata-kalaman farantin sabobin tuba cikin linearly polarized bim cikin circularly polarized haske (ko mataimakin versa) ta kara bambanci bugun jini zuwa 90 digiri. Tare da irin wannan fasali ne ya yi dukan "polyariki". Bambanci a price, da kuma yadda shi ne yanayin saboda ƙarin yadudduka: m, antireflective, ruwa-m.

bayyanar

Lokacin da wani polarizing tace ga ruwan tabarau da aka tsara? Wannan samfurin da aka kaddamar ta hanyar ci gaban da abubuwa na TTL atomatik kamara, wanda, sabanin da hotunan, sun zama dogara a kan tasirin} ir} on da haske.

Kullum da mikakke-rabuwa radiation hana metering da SLR kyamarori partially hana aiki na atomatik lokaci mayar da hankali.

A ilmin taurari, "polyariki" an hada da na'urorin da wanda karatu da madauwari da mikakke canji na haske abubuwa da ke zaune a waje sarari.

Polarizing dubawa shi ne ainihin hanyar samun bayanai game da damar da Magnetic filin a cikin yankuna da samar da radiation a, ka ce, fari dwarfs.

Nikon CPL

Polarizing Filter CPL Nikon 52 mm - mai muhimmanci abu a gare wuri mai faɗi da daukar hoto da kuma ga wadanda suka so don samun high quality-images. Akwai a kalla shida dalilan da ya sa ya kamata ka saya wannan samfurin:

• Domin daukar hoton na ruwa (shi ya zama mai duhu da kuma mafi m).
• Nasarawa shimfidar wuri (kara "jikewa" sama da kuma kore).
• Domin harbi a wani kwana ta taga (don kawar da tsananin haske, kuma tunani daga cikin gilashin).
• Da kawar da tunani a ranar da rana (ruwa, gilashin, kayan aiki).
• Kara rufe gudun ga kamar wata Tashoshi (a lokacin da ya cancanta).
• Lens kariya a kan inji tasiri.

Saya wannan tace wajibi ne ga waɗanda suke faruwa tafiya zuwa dumi kasashen - shi ne mai ba makawa kayan aiki a samar da m hotuna. A haske sunshine wannan na'urar inganta image quality ta kara da bambanci da jikewa, haka ne kawar hazo.

ƙuntatawa

Wadanda mutane suke so su koyi yadda za a yi mai kyau hotuna, kai daukar hoto darussa daga kwararru. Yadda za a yi amfani da polarizing tace? da ake so diamita daga cikin na'ura wajibi ne don wind a kan ruwan tabarau na kamara. Juyawa da crystal a tace, dole ne ka zaɓa da ake so mataki na rabuwa, kyale kama kawar da tsananin haske daga ruwa ko gilashin da kuma samun mafi Fluffy da fari girgije, cike da sararin sama.

Akwai wasu hani a kan yin amfani da irin wannan na'urorin:

• Juyawa rabuwa tace dole ne a yi la'akari da cewa ana tsammanin sakamako na iyakance yanki za a sanya a game da 90 digiri daga na farko matsayi. Idan na'urar da aka juya su 180 digiri, wannan rawar daji zai sa hoton ta zuwa ga na farko a jihar.
• "Polyariki" laushi da haske juyi shigar da CCD kyamara ta cikin ruwan tabarau, don haka kwararru sau da yawa kara da sikeli a kan daukan hotuna mataki 1-2.

shortcomings

photography darussa da ake bukata ga sabon shiga don ƙirƙirar high quality-images. Mun gano cewa, "polyariki" da amfani sosai. Abin baƙin ciki, suna da wadannan disadvantages:

• Saboda wannan, da daukan hotuna inji iya nemi karin haske a cikin 4-8 sau (2-3 matakai) fiye da saba.
• Suna bukatar wani kwana tare da girmamawa ga rãnã, don samun sakamako mafi kyau.
• Tare da wadannan tace a kan manunin kyamara wuya a kasashen Gabas.
• Wannan shi ne daya daga cikin mafi tsada kida.
• Suna bukatar da juyawa, haka za a iya kara zabin da abun da ke ciki.
• Yawancin su ba za a iya amfani da fadi da-kwana da kuma panoramic images.
• Idan tace datti, shi zai iya rage image quality.

Haka kuma, wani lokacin da gani da ake bukata a cikin m. A mafi daukan hankali misali ne da bakan gizo da kuma sunsets. Yana da daraja ga wani daga su nema polarizer m gani iya bace gaba daya ko pobloknut.

sauran shawarwari

Matatu for kamara - ne hadaddun na'urorin. Amma ba za ka iya koyi da aiki tare da su a kan lokaci. "Polyarik" iya, wani lokacin za a yi amfani a lokacin da suka zama dole domin kara tsawon lokaci na daukan hotuna. Tun da shi zai iya rage 4-8 sau (2-3 matakai) daukar kwayar cutar haske, shi za a iya amfani da su cire ruwa da kuma waterfalls.

Idan ka sa a kan wani polarizer a kan wani fadi da kwana ruwan tabarau, shi zai iya haifar da wani Catchy baki duhun Hoton ( "vignetting"). Don kauce wa wannan, tabbas kana da in saya more "da dabara" tsada zaɓi.

Madauwari polarizers aka kafa da AF tsarin da metering jam'iyya ci gaba da aiki a lokacin da saka da tace. Ƙirgar "polyariki" da yawa mai rahusa, amma su ba za a iya amfani da mafi dijital SLR kyamarori (tun da sun yi amfani da lokaci ganewa autofocus da TTL - metering ta cikin ruwan tabarau).