ISO made easy. Here are 6 tips you should know

Using ISO effectively and correctly on your camera can help produce beautiful images. If you don't know how to use the ISO, this can cause trouble with final shots. Here are 6 tips you should know to make using ISO easy.
ISO is basically used to measure how sensitive the image sensor is in your camera. In general, using a lower ISO number means less reactivity to light. Here are some tips to get you started with ISO.
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1. Use a low number
Start with a low number ISO, such as 200. At ISO 200, you can speed up your shutter speed for a clearer and sharper image. You can also get a greater depth of field by making the aperture small.
2. Increase for action
When taking action shots, move the ISO up to 800. Adjust the shutter speed and aperture to get the best shots possible. This may take some time but with practice, you will become better with action shots.
3. Dusk and clouds
Put the ISO at 400 or more when you are shooting outside on a cloudy day or as the sun is setting. There may be some digital noise but not too much at this level. You can always correct this with software after the shoot.
4. Indoor ISO
Move the ISO even higher indoors, such as at 1600. There is less light indoors, so you need to practice doing this immediately. If the lighting is really bad, change the ISO to an even higher number. Experiment with different ISO numbers to get the shot you want.
5. High ISOs
When using really high ISOs, the shot will look very noisy and grainy, but these imperfections can be doctored with software. Having a grainy shot is better than a blurry one, so don't be afraid to use high ISOs such as 3200 when the need comes up. Remember to experiment and have fun when shooting at different ISO numbers.
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6. Dark rooms
Maybe you are in a dark room for a shot and having an ISO at 1600 is still not bringing enough light in, for whatever reason. If you need to and there is no other option, move the ISO up to a high number such as 6400. Adjust the shutter speed and aperture so that the picture does not come out blurry. You can also correct other imperfections with software post-production.