Njengezinye izibonakude, ubukhulu balensi esetshenziselwa ukuqoqa ukukhanya buyisihluthulelo sesibonakude esikhanyelayo. Uma i-lens eyinhloso iba nkulu, yilapho ungabona khona izinto ezikude. Kodwa-ke, ngenxa yezinkinga zobuchwepheshe, ilensi yenhloso yesibonakude esiphikisayo ayikwazi ukwenziwa ibe nkulu kakhulu.
Ngenxa yokuthi umphongolo welensi yesibonakude esiphikisayo uvalekile, onciphisa ithonya lokuzulazula komoya nezinye izici zemvelo, singabona izithombe ezicacile neziqinile, okwenza isibonakude esiphikisayo sifaneleke kakhulu ukubuka amaplanethi nezinkanyezi ezimbili eziseduze. Ukwengeza, akuvamile ukuthi sidinge ukulungisa izingxenye ze-optical telescope e-refracting, esebenziseka kalula.
Enye inzuzo yesibonakude esiphikisayo ukuthi ifanele ukubhekwa kwezinkanyezi kanye nokubhekwa komhlabathi ngesikhathi esisodwa. Ngemva kokwengeza isethi yamalensi okulungisa ekugcineni kwe-eyepiece ye-refracting telescope, singabona izithombe ezivamile lapho sibheka izinto eziphansi.
I-compact refracting telescope ifaneleka kakhulu ukuba izivakashi zihambe nayo. Ngokwesibonelo, izibonakude ezivame ukusetshenziswa ziyinhlanganisela yezibonakude ezimbili eziphindayo.
[Umshwana wokuzihlangula: Okuqukethwe ngenhla kuvela ku-inthanethi, futhi akumeli imibono yalesi sizindalwazi. Ngethemba ukuthi okunye okuqukethwe kungakusiza. 】
Thina (Alice) singumkhiqizi onguchwepheshe ekukhiqizeni izimpawu zamehlo, sigxile ekuhlinzekeni ngezinsizakalo ezisekela imboni yefenisha, imboni yemishini, imboni kagesi kanye nekagesi nezinye izimboni, ikakhulukazi ezikhiqiza ingxubevange ye-zinc, i-aluminium, insimbi engagqwali, ithusi, ithusi, pvc Linda amalebula ahlukene.
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