Thursday, March 19, 2009
Here's a cut-and-paste of the sunny 16 rundown (not sure who to credit):
Let's assume an F stop of f/8 and a ISO (film speed) of 400.
Here's what these 10 light levels are and the shutter speed that would be needed.
A Sunny day outdoors — 1/2000 sec
A hazy bright day — 1/1000 sec
A bright cloudy day without shadows — 1/500 sec
An overcast day, or open shade on a sunny day — 1/250 sec
A heavily overcast day — 1/125 sec
Deep shade. The woods on an bright overcast day — 1/60 sec
Just before a thunderstorm or late on a heavily overcast day — 1/30 sec
A brightly lit store interior — 1/15th sec
A well lit stage or sports arena — 1/8th sec
A well lit home interior — 1/4 sec


