I'm still a newbie, and I'd like some advice here. Say 10 family members came over to my house for Easter. Then we want to take a group portrait. Should I do anything to my aperture to improve the focus? Should I put the aperture on infinity focus or what? I'm always afraid that if I have my camera on the normal focus it will only focus on one person's face and everyone's else would be a tad out of focus. Any help for a beginner? Thanks.