Years ago when photographing celebrities and happenings I often had to jostle for space among other people with cameras. That was until I got a Spiratone Ultrawide 18mm lens. Now I could push my way forward, stand in front of the competition, block their view, and still get everything in! Failing that I could hold the camera at arm's length, point it the general direction of the action, and be pretty well assured of getting the shot.