Features:1: very small size and weight、 very convenient to carry.2: pure optical glass、 the whole surface of the antireflection blue film、 imaging good results.3: accessories: leather package、 lens cleaning cloth、 manuals、 etc. Mirror the main parts of the body as a high-quality copper、 holding a part of the package quality leather、 elegant appearance、 to metal heavy feeling in my hand; the lenses with Paul BAK4 prism、 clear vision、 open and bright! Contraction is small! Easy to carry.