First, reflective effects: in the light of the bright place picture, reflective good can.
Second, look at the back: can you look at the back to make up lens, silver and red, red better, time is long wouldn't fall!
Three, to see whether ZouSe make up lens distortion, to check the
make up lens back to inquire whether within mercury mounts and backs, no backplane is unqualified, not paper also not line, otherwise the mercury will wear off.
Four, see appearance: should from the positive and negative side, from various perspectives to observe
make up lens, general everybody
make up lens are will only pay attention to yourself in a mirror image of the direct, and not to pay special attention to the mirror in the distance of straight objects, can move a little under line of sight, if straight objects do not bending deformation, this is a piece of good quality
make up lens.