In brief ... the smaller then number next to the "f/", the bigger the hole, and the more light you can get into your camera. The more light you can get into the camera, the faster a shutter speed you can use, and the less blurred people are due to moving.
(There is a payoff in terms of depth of field, but I think that would require a series of images to illustrate - which I haven't yet taken ...)
no subject
In brief ... the smaller then number next to the "f/", the bigger the hole, and the more light you can get into your camera. The more light you can get into the camera, the faster a shutter speed you can use, and the less blurred people are due to moving.
(There is a payoff in terms of depth of field, but I think that would require a series of images to illustrate - which I haven't yet taken ...)
(Good icon.)