On Apr 11, 2011, at 12:49 AM, Christine Aguila wrote: > > ----- Original Message ----- From: "William Robb" > <[email protected]> >> >> I use a similar method to yours for dialing in lenses. I focus on an object >> (in my case a clock dial) at some distance from the camera using center >> point AF, and I then adjust AF by how well what I was focusing on is in >> focus. > > > > Thanks for suggesting this. I think I'll use this method from now on. > Cheers, Christine
Although without any indicators in the foreground or background, how can one tell whether the camera is front focusing or back focusing? With a chart that is at 45 degrees to the camera, you have a scale to work with. And as long as the chart has a good target in the center and the camera is set to single-point autofocus, I don't see what can go wrong. The clock can show that you're not achieving good focus, but it can't tell you which way to go with the adjustment. Paul > > -- > 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.
