Last night at Thanksgiving dinner I took about 100 photos of family and friends with flash. Reviewing them today I found many with depth of field issues. Sharp focus at the focus point but other areas are soft due to limited DOF. All are shot with flash, auto ISO and program mode with a 18-135 3.5-5.6f DX Nikkor lens. 90% of the exposures the camera selected 100 ISO and a aperture of F4. My question is why does the camera select ISO 100 with such a wide open aperture limiting the DOF? The sensor is certainly capable of great images at much higher ISO's. Seems like in program mode it should favor a smaller aperture and a higher ISO to give a less shallow DOF. Do I need to shoot in aperture priority with flash so I can force the camera to choose a higher ISO? This is my first digital SLR. I cut my teeth on all manual cameras back in the film days. Automation is a mixed blessing. It gets things right a lot of the time but also requires babysitting to make sure it does not make bad choices.