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March 26, 2012


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There's one more element relate to depth of field. It's the sensor's dimension.
The greater the sensor, the shallower the depth of field.
So, with a compact camera (very small sensor), it has a very wide depth of field, and we cannot take a portrait with blur background, or see the bokeh in this kind of camera.

Kerry Drager

Thanks for your comment, and good points about the size of the sensor.

While it may not be possible to get a super-soft background with a compact digital camera, it is possible to blur the background to a certain extent. But all of the factors must be in place: widest aperture, longest telephoto focal length, a close-up subject (i.e., for people, a head-and-shoulders portrait - not a full-length portrait), and a distant background.

To demonstrate this, I once did a demo shot at my outdoor "museum" of old ranch/farm equipment:

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