PENTAX K-3 + SIGMA 17-70mm F2.8-4.0 DC MACRO HSM – Part 7-8 Posted on 10 April 2014 | 14:2110 April 2014 | 14:22 | No Comments [pe2-gallery class=”alignright” ] [/pe2-gallery] Here is the First, Second, Third, Fourth, Fifth and Sixth part of PENTAX K-3 + SIGMA 17-70mm F2.8-4.0 DC MACRO HSM Samples. Source 1 / Source 2 Posted in News.