Menene matattarar tsoma baki?

1. Menene tacewa?
Fitar gani, kamar yadda sunan ke nunawa, ruwan tabarau ne masu tace haske.Har ila yau, an san shi da "polarizer", kayan haɗi ne da aka saba amfani da shi a cikin daukar hoto.Ya ƙunshi gilashin guda biyu, tare da wani nau'i na ji ko makamancin abin da aka yi sandwid a tsakanin su, kuma ta hanyar watsawa da nuna haske akan ji, ana canza wurin a cikin haske da inuwa.

2. Ka'idar tacewa
Ana yin tacewa da filastik ko gilashi kuma an ƙara shi da rini na musamman.Jan tace kawai zai iya wuce jan haske, da sauransu.Canja wurin takardar gilashin yayi kama da na iskar asali, kuma duk wani haske mai launi zai iya wucewa, don haka a bayyane yake, amma bayan rini, tsarin kwayoyin halitta yana canzawa, ma'aunin refractive kuma yana canzawa, kuma wucewar wasu garkuwar haske. kayan canje-canje.Misali, lokacin da hasken farin haske ya ratsa ta cikin tace shudi, ana fitar da hasken shudi, yayin da dan kadan kore da jajayen haske ke fitowa, kuma mafi yawansu sai tacewa.

3. Aikin tacewa
A cikin daukar hoto, ana amfani da matattara don batutuwa iri-iri, kamar shimfidar wurare, hotuna, da sauran rayuwa.Mai zuwa shine taƙaitaccen gabatarwa ga aikin tacewa:
1) Sarrafa bambanci (watau haske da bambancin duhu) na hoton ta hanyar canza kusurwar hasken abin da ya faru don haskaka batun.
2) Yi amfani da matatun launi daban-daban da ruwan tabarau chromatic aberration don daidaita ma'aunin launi na hoton.
3) Don cimma takamaiman tasirin fasaha ta hanyar zabar matatun launi daban-daban.
4) Daidaita ƙimar buɗaɗɗen buɗaɗɗiya ko tsayin mai da hankali kamar yadda ake buƙata don samun tasiri na musamman.
5) Yi amfani da madubi mai karewa.
6) Lokacin da ruwan tabarau na kamara ya datti, ana amfani dashi don tsaftacewa.
7) Ana amfani dashi azaman mai canza waya.
8) Ana amfani dashi azaman polarizer.