Eero Ahonen <aer### [at] removethiszbxtnetinvalid> wrote:

> Nnnope. The point of focus is still on the surface of the ball,
> containing practically an image of the reflected area, so DoF won't
> affect on the reflection - for a camera the reflection is like a photo
> on a stand.

Well, not quite.  Just because it's in a mirror doesn't mean the laws of physics
don't apply.  For a diverging mirror (like a sphere) a virtual image exists a
short distance behind the mirror.  For a ball with radius R, an object at
infinity produces a virtual image about R/2 behind the surface.  This probably
falls well within the depth of field, so the smaller the radius of the ball,
the more it tends to focus the reflection.  Of course it can never be perfectly
in focus though, and a planar mirror won't do anything.

 - Ricky

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