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Lesson 3 - ISO
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This quiz is based on Lesson 3 about ISO.
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Question 1 of 11
1. Question
1 pointsWhat is ISO?
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You can do better next time. Just remember what ISO measures the sensitivity of the sensor or film to light.
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Question 2 of 11
2. Question
1 pointsWhat is the different between ISO 200 and ISO 1600?
Choose all answers which apply.Correct
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Remember this:
The lower the ISO number, the less sensitive to light it is. In this case ISO 200 is lower than ISO 1600, this is why it is less sensitive to light.
You will also get more noise at higher ISO. In this case ISO 1600 will give you more noise than ISO 200.
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Question 3 of 11
3. Question
1 pointsHow does ISO influence sensitivity of the sensor to light?
Drag and drop the right answers.Sort elements
- LESS SENSITIVE TO LIGHT SENSOR
- MORE SENSITIVE TO LIGHT SENSOR
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SMALLER ISO =
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BIGGER ISO =
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Remember this:
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Question 4 of 11
4. Question
1 pointsWhich is the following ISOs will give you the least noise?
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Remember that the lower the ISO the least noise you get. In this case 200 will be the lowest ISO.
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Question 5 of 11
5. Question
1 pointsWhich of the following ISOs will gives you the most noise?
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Remember: the higher the ISO the more noise you get. In this case 3200 is the highest ISO.
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Question 6 of 11
6. Question
1 pointsIn which of the following situations low ISO will be more appropriate?
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Low ISO usually will give you a cleaner sharper image without grain. So if you have enough light like for example outdoors, while using flash/strobe or long exposure with slow shutter speed, you should use the lowest ISO possible.
On other hand in situation, when you don’t have enough light and can’t use flash, you have no choice, but make you ISO higher.
Some photographers also like to rise their ISO, because they actually like the grain it give to their images.I also want to point out that newest cameras perform much better at high ISO. Post processing software are getting better in removing noise as well.
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Question 7 of 11
7. Question
1 pointsWhich ISO was most likely used for the following photo?
Consider that it is a theatre performance with stage lights and no flash is allowed.
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In most cases while shooting indoors for example performance where light is not very bright and flash is not aloud, you will have to use higher ISO.
In this case ISO 1000 was used. -
Question 8 of 11
8. Question
1 pointsWhich ISO was most likely used for the following photo?
Consider that this photo was takes with slow shutter speed (long exposure) using the tripod.
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Since tripod and long exposure was used, there was no need for a high ISO, so this photo was taken at ISO 100.
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Question 9 of 11
9. Question
1 pointsISO 400 is twice as sensitive to light as ISO 200? True or False
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Remember this:
Every next stop of ISO is twice as sensitive to light as the previous one.
This way ISO 200 is twice as sensitive as ISO 100,
ISO 400 is twice as sensitive as ISO 200,
ISO 800 is twice as sensitive as ISO 400,
ISO 1600 is twice as sensitive as ISO 800 and so on… -
Question 10 of 11
10. Question
1 pointsWhich of the following ISOs is the most sensitive to light?
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Remember: The higher the ISO, the more sensitive to light it is.
In this case ISO 3200 is the highest ISO, so it is the most sensitive. -
Question 11 of 11
11. Question
1 pointsIn which of the following situations you have to use high ISO?
Choose all answers which apply.Correct
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Remember this:
You will have to use higher ISO if you want to add more noise to the picture for creative purpose. The higher the ISO, the more noise you get.
Also you will have to use higher ISO in low light situation when flash is not aloud. The higher the ISO the more sensitive to light the camera sensor is.
Go to Lesson 3 – ISO
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