Depth of field (aperture)

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Depth of field

Today we have a look at depth of field, how to use the f value. The f value on the lens of a camera is to show the amount of light what the aperture will let in to hit the sensor or film. The lowest number like 1.8 or 1.2 means the aperture is wide open and it let a lot of light in. Good for low light situation. It will also affect the depth of filed. So the d-o-f will be short (background blurred).

The last two images has been taken with a higher aperture. So the details in the background can be seen. The dept of field is longer than on the previous images.

I have edited them pictures in photoshop and just saved it with lower resolution.