Overall, these are good e.p's for the money. Unfortunately when you get to the 6mm and 4mm lenses, there are areas that have some notible wavering of the image when the object passes over a couple of spots. This isn't anything you can't live with, but it makes you want to head for the focus knob when there is nothing you can do about it besides move the image or wait for it to pass to another sweet spot again.
Pros: good diversity with the power combinations
Cons: some bad spots on the higher magnification pieces
This review was written in the old system and had content requirements that are different than reviews written today.