Sunny f16 rule

 

The Sunny 16 Rule is a way to meter for correct exposure during daylight without using the camera’s meter.

The basic rule of thumb is that if you have a clear, sunny day and your aperture is at f/16, whatever ISO you are using, your shutter speed will be the reciprocal value of that ISO value

So for example, if your ISO is 200 at f/16, then your shutter speed will be 1/200 seconds. If your ISO is 100, then your shutter speed will be 1/100 seconds.

The Sunny 16 Rule is a good way to check if your camera is spot on with exposure or does it consistently under or over expose. Some cameras have a tendency to slightly under expose, and this is a good way to test your camera.

Additionally, unlike the camera metering system, the Sunny 16 Rule is based on incident light instead of reflected light, which means that it’s based on the brightness of the light only, and not how the light that is being reflected off the subject and into the camera.

Go ahead… try it and see how your camera performs…

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Kevin A Pepper

Kevin is a photographer and educator based in Waterloo, Ontario. His first love is photographing nature, regardless of the season or weather condition; the Ontario landscape and its wildlife are his inspiration. But you will also see other styles of photography in his portfolio. From street photography to urban exploration of abandoned buildings and architecture, he loves to capture it all with his camera for his corporate clients and his growing personal portfolio. Kevin’s images have been featured in Canadian Nature Photographer, PHOTONews Canada, Photo Technique Magazine, The London Free Press, The Weather Network, and National Geographic Online. His diverse client list includes the City of Cambridge, Olympus, GORE Mutual, TVO, and African Lion Safari. Kevin also operates “Northof49 Photography”, a company launched in 2012 dedicated to teaching amateur photographers through International and Canadian-based workshops. In the coming year, Kevin will be leading workshops in Iceland, Mongolia, Tanzania, Venezuela, Provence, and numerous destinations across Canada. Website: www.kevinpepperphotography.com