We are a manufacturer of package. Recently we begain to used the CTP instead of the former PS to print. I am not very clearly about the technology of CPT. Everyone says that CTP have many many advantage conpare to PS. But we find that the print effection are not pefect as we expect. There are still white dots on products. Chromatic aberration is still a problem to be solved. We really don't know what's the matter.