Chiyambi cha zipangizo wamba mandala

Magalasi agalasi adzuwa opangidwa kuchokera ku nayiloni, CR39 ndi zida za PC zili ndi zabwino ndi zoyipa zawo.Nayiloni ndi polima yopangidwa yomwe ndi yopepuka, yolimba komanso yosinthika.Ili ndi kukana kwakukulu kukhudzidwa ndipo imatha kupirira kutentha kwambiri.Magalasi a nayiloni ndi osavuta kupanga pogwiritsa ntchito njira yowumba ndipo amapezeka kwambiri mumitundu yosiyanasiyana komanso matani.

CR39 ndi mtundu wa pulasitiki womwe umadziwika chifukwa chomveka bwino komanso kukana kukanda.Magalasi awa ndi opepuka, olimba komanso otsika mtengo poyerekeza ndi zida zina.Amapangidwa pogwiritsa ntchito njira yoponyera yomwe imalola kuti pakhale kuwongolera bwino komanso kuwongolera bwino.Magalasi a CR39 nawonso ndi osavuta kuwongolera ndipo amapezeka mumitundu yosiyanasiyana komanso mithunzi.

PC (polycarbonate) ndi mtundu wa thermoplastic womwe umadziwika chifukwa cha kukana kwake komanso kulimba kwake.Magalasi amenewa ndi opepuka ndipo nthawi zambiri amagwiritsidwa ntchito m'magalasi amasewera ndi chitetezo.Amapangidwa pogwiritsa ntchito njira yopangira jekeseni yomwe imalola kuti ikhale yolondola komanso yosasinthasintha.Ma lens a PC amapezekanso mumitundu yosiyanasiyana ndi ma tint, koma sagwira ntchito ngati magalasi a CR39.

Pazaubwino wawo, magalasi a nayiloni ndi osinthika, okhazikika komanso osagwira ntchito.Magalasi a CR39 ndi omveka bwino komanso osagwira kukanda.Ma lens a PC ndi osagwira ntchito komanso olimba.

Komabe, palinso zovuta zina zomwe muyenera kuziganizira.Magalasi a nayiloni amatha kukhala achikasu komanso kusinthika pakapita nthawi.Magalasi a CR39 amatha kukhala osagwira ntchito poyerekeza ndi zida zina.Ma lens a PC sangakhale omveka bwino ngati magalasi a CR39 ndipo amakonda kukanda.

Pomaliza, kusankha zinthu za magalasi a magalasi a dzuwa kudzadalira zomwe mukufuna kugwiritsa ntchito komanso zomwe mumakonda.Magalasi a nayiloni ndi abwino kwa iwo omwe amafunikira kusinthasintha komanso kulimba, ma lens a CR39 ndi oyenera kwa iwo omwe amayika patsogolo kumveka bwino komanso kukana kukanda, ndipo ma lens a PC ndi abwino kwa iwo omwe amafunikira kukana komanso kulimba.