I recently purchased a Nikon D200 for portrait photography and continually experience problems and difficulty with focusing on both single and groups of people. I mainly photograph children and families. Everytime I think that I have the focus problem corrected, I leave a sitting, view my photos and still have many that are still out of focus. I have shot in AF up until last night, I tried manual and last night was the worst! My session was with two beautiful little girls ages 2 and 4 and their mom. I shot about 175 photos and at least 60 of them were not completely in focus. Especially the ones of all three girls. I tried using the manual focus last night and apparently my eye is not sharp enough or I had the setting set wrong. So, long story short, has anyone found the best focus settings for the D200 or other cameras. Especially for large group shots where all members of the family are in focus. I know that there will always be a few pictures out of focus but 60 is somewhat ridiculous! I appreciate any input that anyone has. I am shooting a large family on Saturday and need to know what to do. Thank you so much!