Does ISO 200 Produce Less Noise than ISO 100 on Nikon Cameras?
Many photographers say that the native ISO of Nikon cameras is ISO 200. They say that since ISO 200 is the native ISO, it produces less noise than ISO 100. I have always been intrigued by this common belief because it goes against the traditional wisdom that the lower the ISO is, the less noise is produced in the image.
I put this belief to the test this week to see if ISO 200 really was less noisy than ISO 100. What did I learn from the testing on my Nikon D7000? That the thought that the native ISO of 200 somehow produces less noise than ISO 100 is completely untrue.
If you need proof of this myth, just look at the 100% views of the images on this page. While the difference is (very) slight between ISO 100 and ISO 200, I personally see slightly less noise with ISO 100 than in the photos shot at ISO 200.
While I only included a few shots on this page, they are representative of many other photos that I took and analyzed to see if this is true. Also, Dustin Olsen investigated this myth on his Canon DSLR and achieved the same result: ISO 100 produced slightly less noise than ISO 200.
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