Shilu lens core size 68×128 Shilu lens core size 68×128 Shilu lens core size 68×128 Shilu lens core size 68×128 Shilu lens core size 68×128 Shilu lens core size 68×128 Shilu lens core size 68×128 Shilu lens core size 68×128 Shilu lens core size 68×128 Shilu lens core size 68×128