01 Ukwengeza, umshini wokuhlela owenziwe ngesandla uthola isicelo ekulungiseni nasekulungisweni kwezingubo zamehlo ezikhona. Ngokuhamba kwesikhathi, amaphethelo amalensi angase aqhekezwe noma aklwebhe, kuthinte ukunethezeka kwalowo ogqokile kanye nekhwalithi yokubona. Besebenzisa umshini wokuhlela owenziwe ngesandla, ochwepheshe bangabuyisela amalensi esimweni sawo sangempela, bandise isikhathi sokuphila sezingubo zamehlo.
Ngaphezu kwalokho, lo mshini ubalulekile ekwenzeni ngokwezifiso izingubo zamehlo. Amaklayenti anezidingo ezithile ezibonakalayo noma izimo zobuso ezihlukile ngokuvamile adinga amalensi enziwe ngokwezifiso. Umshini wokuhlela owenziwe ngesandla uvumela ochwepheshe ukuthi bagaye ngokunembile imiphetho yelensi, baqinisekise ukulingana okuphelele nokunethezeka okufanele kogqokile.
Ngaphandle kwezinhlelo zokusebenza ezisebenzayo, umshini wokuhlela owenziwe ngesandla usebenza njengethuluzi lokufunda emfundweni ye-optical nokuqeqeshwa. Abafundi nabafundi bangathola ulwazi olunzulu ekugayeni ilensi, bacije amakhono abo kanye nokuqonda inqubo yokwenziwa kwezingubo zamehlo.