Sim Cam

F4- looks best at 1/125 of a sec. shutter speed
F5.6- looks best at 1/60 of a sec. shutter speed
F8- looks best at 1/60 of a sec. shutter speed
F11- looks best at 1/60 of a sec. shutter speed
F16- looks best at 1/30 of a sec. shutter speed
F22- looks best at 1/8 of a sec. shutter speed

F4- the background is all blurry you can see the couple.
5.6- the background is kind of blurry you can see some of the background. You can see the couple.
F8- you can see the background but not clearly. You can see the couple.
F11- you can see the background and the couple.
F16- the background is as almost as clear as the couple.
F22- the background is as clear as the couple.

The people come either to blurry or not at all. Change the shutter speed. 1/60