newengland Posted January 29, 2010 Share Posted January 29, 2010 <p>Looking to know if there is a teleconverter for Pentax K200D that will also work with Sigma 120-400mm lens for same camera. What's best?</p><p>There was one on Ebay (Sigma 1.4x DG EX APO AF Teleconverter Lens for Pentax)<br>but it doesn't list the Sigma 120-400 lens in its list of Sigma compatible lenses. It does however list every other Sigma lens!</p><p>Any help appreciated, thanks!</p><p>john B.</p> Link to comment Share on other sites More sharing options...
miserere_mei Posted January 29, 2010 Share Posted January 29, 2010 <p>That lens is HSM focusing only, and Sigma does not have any HSM TCs for Pentax. You'll have to look around internet to see if HSM will work with the Tamron 1.4x MC4 or the Kenko 1.5x with SDM contacts.</p> Link to comment Share on other sites More sharing options...
michael_elenko Posted January 30, 2010 Share Posted January 30, 2010 <p>The Kenko Pz-AF 1.5X Teleplus MC will not AF with a DA* lens. It will AF with the screw-driven Pentax lenses.</p> <p>Usually, Sigma TCs only work with Sigma lenses, excepting the HSM variety for Pentax.</p> <p>ME</p> Link to comment Share on other sites More sharing options...
jgredline Posted January 30, 2010 Share Posted January 30, 2010 <p>A friend of mine has that exact same lens on a K-X and the only TC that worked is the Tamron 1.4 MC-4 . The kenkos did not work the motor.</p> Link to comment Share on other sites More sharing options...
newengland Posted January 30, 2010 Author Share Posted January 30, 2010 <p>will someone please explain HSM? and is the Tamron converter any good?<br> Thanks,<br> JB</p> Link to comment Share on other sites More sharing options...
newengland Posted January 30, 2010 Author Share Posted January 30, 2010 <p>forget that last post of mine. I figured out the HSM</p> Link to comment Share on other sites More sharing options...
miserere_mei Posted January 30, 2010 Share Posted January 30, 2010 <p>John, the Tamron 1.4x MC4 (note the "MC4") is a very good TC. More about it <a href="http://www.pentaxforums.com/forums/pentax-slr-lens-discussion/19694-tamron-tc-converter-pics.html">here.</a></p> Link to comment Share on other sites More sharing options...
newengland Posted January 30, 2010 Author Share Posted January 30, 2010 <p>Thanks for the link and thanks to all for your replies. I appreciate it and now at least I feel better informed.</p> <p>Thanks again,<br> JB</p> Link to comment Share on other sites More sharing options...
newengland Posted December 2, 2013 Author Share Posted December 2, 2013 <p>Javier, I finally got my hands on a brand new Tamron-F 1.4X Pz-AF MC4. It works fine with the Sigma 120-400mm lens. Autofocus working perfectly.</p> Link to comment Share on other sites More sharing options...
newengland Posted December 2, 2013 Author Share Posted December 2, 2013 <p>PS, the TC and lens are mounted to a Pentax K30. I no longer use my K200D</p> Link to comment Share on other sites More sharing options...
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