Quote:

And the computer does not know, if the human focusses on a near or far object.




Ahh!! This is exactly what I mean, because we try to emulate the effect, we use a fixed focus, assuming we are focussing on that point, the human eye can adapt it constantly and will. Focus on something nearer and the entire depth of field will change, focus on something further away and again it'll all change bigtime. That's what I meant with 'fixed focus'. The 3 photographs explain how different the effect can be while focussing on 1 and the same point using different focal distances. In real depth of field, these focal distances are not fixed. Focus on something else and it'll change as a whole, not just adding more blur to an object further away, just totally dynamic.

@Damocles: I agree, it's not realistic, it's a lens effect and the depth of field our eyes do have, have a different kind of blur, almost not noticable and very very extremely smooth.

Cheers


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