Ingaba kufuneka UV-lokucoca ukuba camera?

UV-isihluzi - lokucoca UV. Yayo njongo - ukukhuselwa lens enombala evela umonakalo, nothuli nobunye ubumdaka (it zonke ngokukhawuleza utshabalalisa ilens). Kwakhona, izinto ezisebenzisa loo mfumba zamatye ukukhanya yelanga xa adubula izinto ezikude. Emva matrix filimi digital, ngokuchaseneyo iliso womntu sensitive ngakumbi kule hlobo radiation. UV-isihluzi iluncedo kakhulu ukuba nokufotwa kwindawo weentaba, kuyanceda ukuphepha nelitye blue abakuyo.

Ummandla iyonke spectrum yelanga zingahlukaniswa parameter amathathu: ekude - 280 NM kunye elifutshane (UV-C); eliphakathi - 320-280 NM (UV-B); kunye proximal - 400-320 NM (UV-A). Ubuntununtunu Izixhobo digital lingaphantsi umboniso, ngoko kuthatha proximal band, kwaye umboniso uyakwazi ukulungisa lonke uluhlu yelanga (kodwa iliso babantu ukubona ukuba azikho kwenye yezi parameter nganye). Noko ke, amathuba khamera bhanya kuthintela ukukwazi lens ezamehlo. cuts UV-isihluzi radiation ezinjalo 320 NM (ophakathi kunye noluhlu kude).

Xa ukhetha imveliso enjalo kufuneka uqale kwi sangqa lens. Oko kukuthi, ukufumanisa ukuba yeyiphi lokucoca ilungele ngenxa yakho camera, kufuneka ukwazi ilens sangqa kumsonto (libonisa ngaphakathi esicikweni). Ixabiso imveliso ixhomekeke kubungakanani bayo. Ekubeni UV-isihluzi sangqa 52 mm $ 10-15, ne-77 mm - 30-40 zeerandi.

izihluzi UV yahlulwe kumaqela amane didi:

• Cala - cala, enemibala;
• Mbobo - Pink, yenzelwe ukunika imifanekiso imibala ezishushu;
• UV ngqo - ultraviolet;
• Haze - nxamnye inkungu.

Nangona umahluko yangaphandle, injongo yale qela linye - ukhuselo lens kwiimpembelelo zangaphandle, UV kunye nombala yomsi. Ethandwa kakhulu UV-filter kunye Imbobo.

Amaxesha amaninzi abathengisi Imbobo thaca njengoko eyona ngoko imali eninzi, kodwa ifuthe imibala efudumeleyo kwifoto bujolise kuphela iikhamera umboniso kwinani kubhaliwe lancitshiswa zero bubukho eseleyo emhlophe umbala.

Xa ukhetha imveliso enjalo akufuneki silibale ukuba umsebenzi eziphambili - kukukhusela ilens woqondo kwiimpembelelo mechanical nokhuselo UV, njl - kulandela. amateurs abaninzi bayathandabuza isakhono ucoco yemisebe yelanga, kuba ifoto cishe akukho isiphumo (ngokutsho kumenzi, icebo lokucoca ukhusela matrix digital). Ngokutsho abafoti ezinjalo ukuba imveliso kweenkampani ngokukhanya yokuthathwa ukuba bakhupha nje phezu photographer engahlawulwayo. Kaninzi Sicebisa ukhetha omnye okanye enye UV-filter isekelwe phezu iimpawu wokhuseleko ngoomatshini. Nangona lens zokuzikhusela zithathwa engambi, kodwa musa ukulibala ukuba ilens - lo ngumsebenzi wamaziko asisithintelo ukosuleleka wokukhanya, ngoko ke kungcono ukuba bathenge imveliso evela kumenzi owaziwayo, ezenziwe ngezinto ezikumgangatho ophezulu kunye ugqithiso wokukhanya onamandla.

Sebenzisa UV-okucoca okanye hayi, kufuneka athathe isigqibo umfoti engahlawulwayo, kodwa ukuthatha amanyathelo okukhusela ilens, kuyimfuneko, kuba ixabiso inkqubo elungileyo enombala ingaba ngaphezu ixabiso lwecamera ngokwayo.