I suspect it's more the camera than the lens, but it's anyone's guess. I would first try fine focus adjustment in one kind of light, then see if it proves accurate in another case as well. The focus adjustment procedure is something that should be performed with all of your lenses in any case. My DA* 16-50 has worked fine with the K-7 and K-5. I'm sure I used it with the K20 as well. I don't recall any significant problems.
Paul On Mar 20, 2011, at 8:39 AM, Tim Øsleby wrote: > The combo seems to front focus a lot in the studio. In fluorescent it > is hit and miss. Improves in halogen light, but I can't really trust > it. It seem to do ok in daylight. I'm assuming that in house > AF-adjustments is not the way to go. That it will be useless outdoor > if I corrects it for indoor light. Am I right about this? > > FA* 85 is mostly spot on. So I'm blaming the DA* 16-50. > > What do you think guys? Should I use the situation as an excuse for an > enablement? > > My eyes are not up to critical manual focus indoor. Should I look for > another lens to use in the studio? Tamron 28-75/2,8 could be the lens > I need. Also musing at 35mm 2,8 Ltd, but I end up regretting not > buying a faster 35mm. > > -- > MaritimTim > > http://maritimtim.blogspot.com/ > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

