1. Galasi yovundikirayo imakutidwa pazinthu zomwe zili pagalasi,
2. Itha kupewa kukhudzana ndi ma lens amadzimadzi, sikuipitsa mandala omwe akufuna,
3. Angathe kupanga pamwamba pa maselo omwe amawonedwa mu ndege yomweyo, ndiko kuti, mtunda womwewo kuchokera ku lens ya cholinga, kuti chithunzicho chiwoneke bwino.