I've never used ND filters on my H. I do not want to alter my depth of field.
I don't have the PixAero lens. I'm not unhappy with the sharpness of my stock lens.View attachment 6219
I know what you are talking about Rubik... particularly in the shadows... unfortunately that is not
an artifact of the lens. In my opinion, that is caused by the fact that the CGO series of cameras
do not have a particularly good dynamic range. Going to the 1 inch sensor in the Pro will really
reduce that. The fact is, you are seeing more of it since installing the PixAero, because the lens
is sharper.