Originally posted by Dewman Thanks for the information, David. I must admit, I'm the absolute dullest knife in the drawer when it comes to anything involved with computer applications. I downloaded the PK-Tether software and also found a Youtube video that might help. I'll see what I can accomplish, but I'm afraid I'll either make it worse, or ........ curses..... ruin the camera altogether!
I don't suppose you happen to live near Boise, Idaho, do you?
I do not. However, the software and the debug mode are very easy to use. The difficult thing is the calibration itself. I'm far from an expert and I don't have those calibration tool/chart with me. I just used a ruler and set up a simple system to do it. As you can see from the attached image, I focused on the owner's manual using maximum aperture. Number 3 on the ruler should be the sharpest point, but it turned out to be somewhere between number 6 and 8. Then I went to the debug mode and adjusted the AF +/- number, and shot images back and forth until I felt +120 gave me the best result. This may not be accurate, but it is definitely much better than pre-adjustment. Just remember to turn off the debug mode in PK-Tether after everything is done. Whatever your method is, there is no chance you can make it worse
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I also echo Adam's comment that you'd better compare your pictures between live view mode and viewfinder mode before you do the calibration. I did it and I found that my pictures shooting by live view were always sharp so I knew it was the camera's AF needed to be adjusted. PM me if you have any questions.