Indlela ukukhetha yebhangqa omabonakude ngekhono?

Ngakho, usuthathe isinqumo ube umnikazi ujabule yebhangqa omabonakude ukuze bakwazi ukuhlola umkhathizwe noma nje ubukele nezindawo ezinhle, okuyinto uthola at amabanga amade uma liya. Kodwa kanjani ukukhetha omabonakude ezingeni owawuzoba kahle zokuhamba wena ngabe ngokugcwele kuboniswane ngayo yonke imisebenzi yalo? Ukuze wenze lokhu, kumele uthola ithuluzi elihle optical, okuzoba usizo kakhulu nganoma iyiphi uhambo. Ipheya ezinhle omabonakude eyokusiza ngokwethembeka iminyaka eminingi, futhi unikeze isilinganiselo kakhulu nge isithombe esicacile yesithombe. Indlela ukukhetha yebhangqa omabonakude ezingeni ukuthi kungaba uhambisane nezidingo ukuthi abeke kuwo? Namuhla sizozama ukugqamisa nemingcele ezibaluleke kakhulu okufanele zilandelwe lapho ukhetha idivaysi eliphezulu.

1. Kukhethwa umakhi. Udinga ukwazi ukuthi kukhethwa nomkhiqizi ubuchwepheshe optical kufanele zifane eduze kakhulu, ngoba kule ndawo libhekene okusezingeni eliphezulu ukukhiqizwa eyinkimbinkimbi. Yingakho kukhona kufanele inikwe izinkampani global njengevolomu Canon, Olimpus futhi abanye. Nokho, abakhiqizi ezifuywayo akudingekile ukuba baphonse emuva, ngoba izinkampani eziningi Namanje wahlanganyela ukukhiqizwa eliphezulu amathuluzi okubona, okuyinto ngokuya izinga akukho okubi kakhulu ukwedlula izinhlobo European global. Ngakho, ngokwesibonelo, omabonakude Belarusian athandwa kakhulu phakathi izakhamuzi zethu nabo, njengoba onobuhle othembeke kunabo bonke, okuyizinto kahle izimo izintaba ibekezelelwe.
2. Ngezelela noma kaningi zedivayisi. Lokhu ipharamitha limelela lihlela isilinganiso phakathi kwama usayizi into ethile sibona ngeso lenyama nokuthi isithombe singabona lens ikhamera. Ngokuvamile, kaningi omabonakude kuhluka 3 kuya 22x indlela amaningi, kuye ngokuthi lokho zihlukaniswe ukwanda amancane, aphakathi nendawo kanye enkulu e omakhalekhukhwini.
3. I ububanzi bomnyango kanye ophumayo abafundi. ipharamitha Kunalokho sina ukuthi kuthinta amandla okudlulisela isithombe omabonakude endaweni emnyama. Phela, indlela ukukhetha i-pair of omabonakude, uma asazi ezingeni bezibona imisebe yokukhanya? Ukuze kukhunjulwe le ubukhulu yokungena umfundi izokusiza ukhethe pair ezinhle omabonakude, okuyinto ngisho sezulu esibi ungabona imininingwane emihle into. Ngenxa yalesi lens ukushuba ka 40 mm kwakwanele.
4. I-engeli umbono kanye umkhawulo isinqumo omabonakude. Isifunda isikhala okuyinto okwaxoxwa nabo e-chamber, kulinganiswa ngokwamazinga, futhi kuyinto engela yokubuka. Ngokuphathelene umkhawulo isinqumo, lesi sici kuthinta ikhwalithi yesithombe yonke imininingwane.
5. transmittance. Kufanele kukhunjulwe ukuthi lens ngamunye has a ukukhanya khomba impahla, ngenxa okutshengisa cishe 5% ukukhanya okukhiphayo. Uma sicabanga ukuthi pair ezinhle omabonakude nabantu abafika ku-10-12 lens, kumele kuphetfwe ukuthi silahlekelwa kufika ku-50% we lonke inani imisebe yokukhanya. Uma ucabanga ukuthi ukukhetha omabonakude okuzingela, khona-ke kufanele sinake lokhu ipharamitha ezibalulekile futhi uthenge omabonakude nge enamathela ekhethekile anti-lembhali.
6. Uhlelo focus ezahlukene. Indlela ukukhetha izibuko ukuthi angakunika isithombe eliphezulu, okuzokwenza zifaneleke kuwe. Kukhona izimoto ne ukulungiswa ngesikhathi esisodwa kokubili lens - central, kanye ehlukile uhlelo focus, okuyinto kuyoba usizo labo bantu babe ukungaboni buthaka kancane.

Ngaphezu kwalokho kufanele futhi sinake ukudepha kwenkundla, ukukhanya isihlobo kanye khona izakhi aspherical. Funda ngokucophelela ezibekiweko nokwazi ukusebenza kwabo, uzokwazi ukuba ngokuphumelelayo asondele ibhizinisi wemfanelo onjalo, kukhethwa eliphezulu omabonakude.