'Going up from one of these settings to the next on a lens gives you twice as much exposure to light'
an f-stop
CHECKING IT TWICE: Going up from one of these settings to the next on a lens gives you twice as much exposure to light
Going up from one of these settings to the next on a lens gives you twice as much exposure to light
Going up from one of these settings to the next on a lens gives you twice as much exposure to light
CHECKING IT TWICE
an f-stop
CHECKING IT TWICE