[froeschle]

http://www.opticallimits.com/pentax/618-pentax70f24?start=1



ePHOTOzine also has tested the DA 70 on a K-5:

http://www.ephotozine.com/article/smc-pentax-da-70mm-f-2-4-limited-lens-review-16835



Furthermore, here are results of the FA 77 on a K-5:

http://www.ephotozine.com/article/smc-pentax-fa-77mm-f-1-8-limited-lens-16892



As a comparison, the tests of photozone on a K10D

http://www.opticallimits.com/pentax/127-pentax-smc-da-70mm-f24-limited-review--test-report?start=1

http://www.opticallimits.com/pentax/128-pentax-smc-fa-77mm-f18-limited-review--test-report?start=1



Could you comment on the different findings (MTF50 graphs: DA70 vs. FA77)?