What are ISO camera settings??

What are ISO camera settings??
What are ISO camera settings and what does ISO mean? ISO stands for International Standards Organization and it refers to the industry norm for sensitivity of emulsion based film, with 100 ISO being not so sensitive (and the standard ISO used by most people) to 1600 ISO which is extremely sensitive to light.

The letters ISO on your digital camera settings refer to the film speed. Even though your camera is not film,but rather digital, the ISO setting still have the same function as older film cameras. ISO determines how sensitive the image sensor is to light.
The most common ISO speed settings are: 100, 200, 400 and 800. Depending on your camera model you may also have them in the range of 64, 100, 160, 200, 400, 640, 800, 1600.
The lower the ISO number, the slower the speed. The higher the ISO number,example 1600 the faster the speed.

Tips for ISO Settings:
- Use an ISO of 100 or 200 when taking photographs outside in sunny conditions.
- If the sky is overcast or close to evening, then use an ISO within the range of 400 to 800.
- Night time or in cases of low light you might need to set to ISO to 1600. If you don't then your photo will appear too dark if at all.

If you set your digital camera to a low ISO, for example 100, the resulting picture will be better quality than one set at 1600. The higher the ISO the more grainy the photo will look.Go for a low ISO number whenever possible.

When your digital camera is at automatic mode, the ISO speed is chosen for you to suit the level of light available at that particular shot.