Back to the Moon

Started Jan 20, 2011 | Discussions thread
win39 Veteran Member • Posts: 5,560
Sunny 16 Rule

The old rule before light meters. On a sunny day set the camera shutter to 1/ISO and aperture to f16. The moon is the same distance from the sun as the earth. Same daylight exposure. It may be night here, but it is day on the moon except when you can't see it.

If you want to pick a better aperture for sharpness like f8 which is 2 stops brighter then increase shutter speed 2 stops to compensate.

If you are shooting at ISO 200 then the rule would be 1/200 or 1/250 sec at f16. Opening up two stops to f8 you would change the speed two stops to 1/1000.

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