Hi Marco ... You might want to give the old manual focus K135/2.5 a try. If you'd like to try mine, let me know.
Shel > [Original Message] > From: Marco Alpert > > This was shot with the FA 135 f/2.8, and while it's turning out to be a > really good focal length for me on the Ds, the lens itself has proven a > bit troublesome when it comes to bokeh and a strong tendency for purple > fringing in high-contrast transitions. As I understand the lens may > have been discontinued, if Pentax ever comes out with an updated > version that addresses these issues, I'd be first in line.

