F3.5

Aperture is the amount of light that is let into the lens.

Depth of field is object in the pictuer that is clear.

the change in the shutter speed was faster when in was on the bigger aperture, when it was on the smaller aperture it became slower.

An aperture of F22 is a small aperture.

An aperture of F3.5 is a big aperture.

For shooting a group of people that are all at different distances you would use an aperture of F22 because it keeps everyone in focus and it keeps the picture clear.

If you were shooting a group of people but only want one person in focus then you would only use an aperture of about F3.5 because it lets enough light in to where it's only focused on the one person.