A lesson on how the F-stops work!
: f/1.4 | 1/125s
: f/2.8 | 1/60s
Changing the aperture of my camera we can see the difference in the image that is formed.
In the first pic the aperture is maximum and hence catches the more sensitive details in the pic. The pic remains dark as it is exposed for half as much time as pic 2.
The second pic is exposed for almost twice the time as the first as the ISO remains constant at 200. That is why you get haze effect.