Up for sale is the highly regarded Pentax K 135mm f/2.5.
The solid build, gloriously damped focus ring, and buttery smooth aperture ring
with great click-stops are something that must be experienced!
It is in excellent+ condition with no scratches or marks on the body or aperture ring.
The glass is flawless as far as I can tell and the aperture blades are nice and snappy.
It comes with both caps as well as the original case and clip on hood.
There are some light superficial scratches on the hood from stowing it in the case.
Price: 225 USD [firm]
shipping: USPS, will consider others
estimated < $10 for ConUS
Here are a few convenient links to info when I was first investigating this lens
Pentax Lens Review Database - 135mm F2.5
other user reviews and comments
Brief Comments
photozone has even tested this lens!
Pentax SMC-K 135mm f/2.5 - Review / Lab Test Report http://www.takinami.com/yoshihiko/photo/lens_test/pentax_tele.html
The case is in decent condition and includes the proper interior padding to hold the lens and hood snugly
(which was not so with another case I ran across).
sample photos in the reply