... of reading and operation 7. Eight diameters of adapter rings for alternative use 49mm,52mm,55mm,58mm,62mm,67mm,72mm, ... 77mm8. Four colors of flash diffusers for alternative use orange,blue, oyster white, and transparent model Fit ... over 200 employees. It is equipped with mold manufacturing workshop, injection workshop, assembly workshop and ISO certificated work process. With eight ...