Mabda'a nalka saadaasha

Sawir-qaadista nalka saadaasha waxay ku salaysan tahay mabda'a sawirka lenska convex, marka masaafada u dhaxaysa shayga iyo lenska convex u dhexeeya 1 iyo 2 jeer dhererka focal, rogan, sawirka dhabta ah ee la weyneeyey.Marka lenska convex-ka la weyneeyo, inta uu shaygu u dhaw yahay lens-ka convex-ka, sawirka ayaa ka weyn.Inta badan ka fog muraayadda, sawirku wuu yar yahay, sidaas darteed, si loo sameeyo isbeddelka naqshadeynta waa weyn yahay, waa in la sameeyaa nalka naqshadeynta ee u dhow muraayadda sawirada, laakiin sidaas oo kale waxay soo saartaa isbeddel, masaafada u jirta kamarada haddii aysan bedelin masaafada. Inta u dhaxaysa muraayadda iyo muraayadda si waafaqsan, sida muraayadda u daah-maxay, u hoggaansamo sharciyada sawir-qaadista lenska convex: fogaanta shayga oo la dhimay, sida weyn, sida ka weyn;Masaafada u dhaxaysa muraayada iyo muraayada waa in si habboon loo kordhiyo, tusaale ahaan laambadda saadaalinta waa in laga fogeeyaa shaashadda.Marka aan isticmaalno laambadda saadaalinta, waxaan u baahannahay inaan hagaajinno muraayadda si sawirka loo caddeeyo.Habka hagaajinta muraayadda waa in la beddelo masaafada u dhaxaysa nalka qaabka iyo muraayadda sawirka (sida, masaafada shayga).
Waxaa jira noocyo badan oo nalalka saadaaliya, laakiin qaabdhismeedkooda aasaasiga ah iyo mabda'a waa isku mid.Guud ahaan indhaha, fiyuuska, gudbinta farsamada, kontoroolka korantada afar qaybood.Qaybta indhaha waa qaybta ugu muhiimsan ee nalka saadaasha, doorkeedu waa in la isticmaalo nalka qaabka gudbinta iftiinka oo ku filan, oogada saadaasha si ay u soo bandhigto sawir weyn oo cad.Waxay ka kooban tahay isha iftiinka, muraayadaha xoogga saaraya (ama muraayadda), muraayadaha sawirka iyo wixii la mid ah.
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Waqtiga boostada: Meey-30-2022