Paul via phone
> On Dec 23, 2013, at 2:57 AM, "Jan van Wijk" <[email protected]> wrote: > > Hi Paul, > >> On Sun, 22 Dec 2013 15:20:24 -0500 Paul Stenquist wrote: >> >> Highly complex targets with cool graphics work, but so does a simple system >> of lines with the center line readily identifiable. I made a chart in >> PhotoShop comprised of a series of lines about a > centimeter apart. The target line in the center is thicker than the others. > With the camera at a 45 degree angle to the chart, I autofocus on the center > line with center spot selected for focus. > > > This will work, as long as you can make sure the camera only 'sees' your > target line, so the measurement lines must be > far enough away from the 'target' line. Yes, and about a centimeter seems to be enough. I've used this chart with k3, k5, k7, and k20 and achieved accurate results. I do use the viewfinder to ensure alignment and take multiple shots. That said, I think I will open up some space around the center of the thick line. > That is why I prefer to have those printed at the sides only, and have ONLY > that > target line near the center area in my viewfinder. > > The K3 is probably better at it, but I found it hard to focus exactly on a > single small detail > with the K10, K7 and K5, when other details are closeby ... > > Regards, JvW > > ------------------------------------------------------------------ > Jan van Wijk; http://www.dfsee.com/gallery > > > -- > 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.
