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ISO

ISO. Learning how to control light entering your camera. the ISO sequence is: 100, 200, 400, 800, 1600, 3200, 6400 and etc. each step between the numbers effectively  doubles  the sensitivity of the sensor.

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ISO

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  1. ISO Learning how to control light entering your camera

  2. the ISO sequence is: 100, 200, 400, 800, 1600, 3200, 6400 and etc. • each step between the numbers effectively doubles the sensitivity of the sensor. • ISO 200 is twice more sensitive than ISO 100, while ISO 400 is twice more sensitive than ISO 200. • ISO 1600 sixteen times more sensitive to light than ISO 100 • It means that it needs sixteen times less time to capture an image!

  3. ISO Speed Example:ISO 100 – 1 secondISO 200 – 1/2 of a secondISO 400 – 1/4 of a secondISO 800 – 1/8 of a secondISO 1600 – 1/16 of a secondISO 3200 – 1/32 of a secondIn the above ISO Speed Example, if your camera sensor needed exactly 1 second to capture a scene at ISO 100, simply by switching to ISO 800, you can capture the same scene at 1/8th of a second or at 125 milliseconds! That can mean a world of difference in photography, since it can help to freeze motion.

  4. I captured these Black Skimmers at 1/2000th of a second at ISO 800. My camera sensor only needed 1/2000th of a second to fully capture this photograph. Now what would have happened if I had ISO 100 on my camera instead? My sensor would have needed 8 times more time to capture the same scene, which is 1/250th of a second. At that speed, I would have introduced motion blur into my picture, because the birds were moving faster than that. In short, I would have ruined the picture.Read more: http://photographylife.com/what-is-iso-in-photography#ixzz2RlWn6JZy

  5. I set the camera to the lowest ISO to retain the detail, which also resulted in a long exposure of 5 seconds. My nephew sat still, while my friend stepped in for a brief moment to introduce the ghost :)

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