Just did a formal test using the AF-assist light. It did OK at the long end, but front focuses heavily at 16mm. Hm. I'll redo the test, and include the mid range. But it does not look good so far.
Will test it in the studio later. Right now it is occupied by a college. -- MaritimTim http://maritimtim.blogspot.com/ 2011/3/20 Paul Stenquist <pnstenqu...@comcast.net>: > > On Mar 20, 2011, at 10:32 AM, Tim Øsleby wrote: > >> The thing is that I never noticed this before I sended it in for a >> locked zoom ring. And I've never noticed it in daylight. In fact, I've >> never noticed it at all. >> >> What kind of light would you try first? > > It doesn't matter which test comes first. As long as you check autofocus > calibration in both daylight and artificial light. You have to do it with an > accurate scale and a tripod. It's impossible to obtain valid results > handholding. > > >> >> -- >> MaritimTim >> >> http://maritimtim.blogspot.com/ >> >> >> >> 2011/3/20 Paul Stenquist <pnstenqu...@comcast.net>: >>> 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 >> >> -- >> PDML Pentax-Discuss Mail List >> PDML@pdml.net >> 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 > PDML@pdml.net > 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 PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
