I took a photo last weekend and I finally had to use the flash... I set the camera to automatic and the flash popped up. The aperture was set to 2.8 though! The resulting photo of the group of firefighters has the middle guys really in focus, with the end ones out of focus (I took it standing off to the side, since I have the 35mm prime and that was the only way to get them all in). Since this was automatic - I didn't set anything - why did the camera select 2.8 and how do I override that?