Lamin tabarau da halaye

Kamar yadda ya riga ya bayyana daga lakabi, ruwan tabarau na hoto wanda yake amfani da su don harba hotuna kuma ya ba da wasu abũbuwan amfãni ga mai daukar hoto. A gaskiya ma, duk da yaduwar ra'ayi, saboda haka, ruwan tabarau "hoto" ba su wanzu ba. Wato, masana'antun, watsar da ruwan tabarau, kada ku yi tsammanin musamman ga kowane nau'i na harbi. Saboda haka, sau da yawa akwai mai yawa rigingimu game da abin da ya kamata ya zama mafi kyau hoto ruwan tabarau. Ba la'akari da cewa duk masu daukan hoto suna daukar hotunan su a yanayi daban-daban, kowane ɗayan yana da nasa takarda mai mahimmanci da abubuwan da suka fi dacewa. Saboda haka, a cikin wannan labarin, zamu dubi halaye na ruwan tabarau da aka fi amfani dashi don daukar hoto.

A farko da babban halaye na wani ruwan tabarau - ta luminosity. Budewa aka kaddamarda labeled f, wanda daukawa bayanai game da matsakaicin budewa. Abu ne mai sauƙi: daɗaɗɗun bude budewar ruwan tabarau, yawan haske da kake samu akan matrix, ƙarin haske kana da. Ƙananan lambar f, fadi da budewa zai iya budewa. Hoto ruwan tabarau dole ne wani babban budewa rabo cewa ba ka damar haifar da kaifafan bayani, wanda yake shi ne musamman muhimmanci a portraiture. Alal misali, a hoto ruwan tabarau Canon da EF 85mm f / 1.2 ne daya daga cikin mafi wakilin wannan qa'idar da muhimmanci fi gaban da yawa wasu.

Don zaɓar ruwan tabarau na hoto, yana da muhimmanci a ƙayyade wane abin da kake amfani dashi mafi sau da yawa. An sani cewa don hotunan hotuna yana da kyau don amfani da gyaran (watau ruwan tabarau tare da tsayin daka mai canzawa), kuma ba zuzzurfan zuƙowa, tun da suna da babbar budewa saboda rashin wani ingancin ruwan tabarau wanda ke da alhakin gabatowa. Mutane da yawa masu sana'a sun yi imanin cewa ruwan tabarau na hoto ya kamata ya kasance mai zurfin 50 zuwa 200 mm. Tare da mafi girma da hankali tsawon bada kyau bokeh - blur image - da kuma ya shafi mafi nesa tsakanin daukar hoto da kuma model. Wato, idan kun harba a cikin wani karamin ɗakin, to, zane-zane na hoto na 200 mm zuwa wani abu. Zaka iya, ba shakka, fita don ruwan tabarau mai zuƙowa don iya daidaita nesa daga kyamara zuwa samfurin zuwa dandano, amma amfani zai buƙaci haske mai kyau. Bugu da ƙari, haske mai zuƙowa mai kyau ya fi tsada fiye da gyara.

Alamun sakandare, amma muhimman mahimmanci - kasancewar tsarin hoton ɗaukar hoto da nau'in mayar da hankali. A image stabilizer Rama for kamara shake, don haka shi ba ciwo. Saukakawa shi ne mafi yawan rikitarwa. Yana da mafi kyau, ba shakka, don zaɓar ruwan tabarau tare da nau'i biyu na mayar da hankali - manual da atomatik. Idan, ka ce, ka saba da yin amfani da takamammen kawai, yana da daraja a tuna cewa wani lokacin lokuta masu ban sha'awa suna faruwa yayin da yake da tsawo ko rashin dacewa don neman mayar da hankali da hannu.

Saboda haka, kafin zabar ruwan tabarau don hotuna na harbi, yanke shawara yadda zaka shirya amfani da shi. Kuma, dangane da abin da kuke buƙatar, saita manyan al'amurra don kanku da kuma ƙayyade yawan halaye mafi kyau. Wannan zai ba ka izinin rage yawan kewaya, kuma kada kayi shakkar yadda za ka zabi.