Macro Lenses on FZ200/150 & Others: Overview, Guide and Information [Achromats]

There is an Opteka 10x lens in various diameters, though the glasses seem much smaller than the threads. I asked Opteka about lens diameters for the various thread sizes but they would not answer my question.

Also I asked them for the diopter strength or focal length of the 10x lens, various mails and the only answer: "The focal length will depend on what lens you have this screwed on to."

I'm going to avoid Opteka from now on ...