ღ【FOCAL LENGTH】Galilean loupe with big field of view and long depth of focus.
ღ【MATERIAL】Use high quality optical glass with coating,clear image,no-distor
ღ【EASY TO USE】 Easy to adjust.Very simple and convenient for user.
ღ【 APPLICATIONS RANGE】Very popular applied to dental,plastic,neurological,ophthalmology,otorhinolaryngology,also can be used for electronic and industry.