ISO is the number indicating a digital-camera-sensors sensitivity of light.
The higher the sensitivity, the less light is needed to make an exposure.
Shooting at lower ISO number requires more light than at a higher number.
This is the figure of how the aperture react on a camera.
Shutter speed is the duration of time of shutter remains open to allow light to reach the digital camera sensor.
It's measured in seconds,or fractions of seconds.
Using very fast shutter speeds to "freeze" fast moving objects.
Slow shutter speeds are used to intentionally capture the movement of a subject.
For most, shutter speeds below 1/60th of a second often required use of a camera support to prevent camera shake.
For this lesson, we did the exercise of the ISO and let the shutter speed and the aperture remains constant and just change the aperture and will saw the different of the ISO.
Here is the exercise that I did for the ISO and the shutter speed,
f/5
ISO 200 1/8
f/5 1SO 400 1/8
f/5 ISO 800 1/8
f/5 ISO 3200 1/8
f/5 ISO
3200 1/8
The second exercise of the ISO and shutter speed is to change the ISO and shutter speed so that the pictures can remain in the same exposure.
Here is my second exercise of the ISO and shutter speed,
f/5
ISO 200 1/8
f/5 1SO 400 1/15
f/5 ISO 800 1/30
f/5 ISO 1600 1/60
f/5 ISO 3200 1/125
After that, we have to do the shutter speed exercise at home, so I did it at my friend hostel room as my hostel's fan cannot function at all. At the first time, I did wrong for the fan exercise. But after that I have retook the picture with the same exposure I it is correct. I am so happy with it.
In this exercise, I had learnt that if we want to that a picture that show someone moving, we can change the shutter speed longer. Like that, our picture will not look like someone stuck there in the photo.
Besides that, ISO also plays a important part in this exercise.
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