fitted with two independent illumination sources,
lens quick removal from visual field,
magnification can be quickly changed,
selectable magnification: x1.8/x2.3/x3.7/x4.8,
self-illumination of inspected object,
use by persons with spectacles,
visual field protection against unwanted lateral light,
watching of magnified picture with two eyes (for magnification x1,8 and x3,7)