Lilense tsa zoom tsa IR li sebelisoa haholo libakeng tse pharaletseng tse kantle ka sepheo sa ho eketsa bolelele ba focus bakeng sa ho fumana temoho ea sebaka se selelele. Kaha bolelele ba focus bo ka fetoloa nakong ea ts'ebetso, karolo ea bohlokoa ea sebaka e ka atametsoa le ho bonoa, ka hona e fana ka sistimi e betere ea ho beha leihlo. Ka nts'etsopele e tsoelang pele le ntlafatso ea indasteri ea ts'ireletso le meralo ea motheo ea kantle, lilense tsa zoom li sebelisoa liindastering le masimong a mangata joalo ka litsela tse kholo, literene le marokho, tlhokomelo ea lebopong le moeling, le maemong a mang a mangata.
Bolelele ba maqhubu bo 'nile ba shebana le ho fana ka lihlahisoa tsa mahlo tse nepahetseng haholo ka lilemo tse 20