Originally posted by rdrum76 what telecovertor for the new DA*300mm F4?
thanks
If you want the original Pentax tcs, which in my personal opinion offer superior image quality, the S-versions should work nicely - but you loose AF. (The L-versions won't fit, from what I have seen of the DA 300).
If you want an AF-converter I would look for either the Tamron or Kenko 1.4 or 1.5x modells. There are no really good quality 2.0x tcs for Pentax available currently. But as Pentax has announced the new 2x SDM-converter, that would probably be a very good match to your DA 300.
regards
Ben