Aperture:

The bigger the hole, the more light comes in.

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Aperture is measured in F.Stops.

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Bigger the F.Stop number, smaller the hole in the camera lens.

 

 

Shutter Speed:

SS is measured in fractions of a second, so 1/8 is one eighth of a second, and quite slow, but 1/1000 is very fast.

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Slower Shutter Speeds may have camera shake, or motion blur. Faster Shutter Speed’s will be crisp, still images.

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Include why we look through the viewfinder, and don’t use Live view (unless we have a tripod) – slows down the Shutter Speed, makes your photos blurry.

 

 

ISO:

Is the camera’s sensitivity to light. On an old camera this would have been the rating of your film strip.

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Higher the number the brighter but more grainy a photo is – grain is good for creating a vintage look, but undesirable otherwise.

 

When shooting at night you want to use a higher ISO to make the camera more sensitive to light, so everything doesn’t come out dark.