I'm trying to understand what Im doing wrong. Ive been practicing on friends and family lately using my 50mm lens. Yet, a lot of my group portrait shots are coming out blurry. When I take single photos of the kids, the photos come out crisp and clear. BUT all the photos of groups, came out blurry. I was shooting at ISO 400, f/5, 1/160 yet the photo is came out slightly blurry. On all my group shots, I used a high aperture to make sure everyone is in focus. SO my question is, am I standing TOO far back? Is there a point of being so far away that the subject becomes blurry? If I have all the right settings, shouldn't I be able to stand ANYWHERE and my photos should be tack sharp? TIA!!