Wasn't it Eero Ahonen who wrote:
>Mike Williams wrote:
>>  The combination of pin sharp reflections and high focal blur might 
>>not  be realistic. If there's enough focal blur to fuzz out a ball 
>>that's a  foot away from the centre of focus, then I'd expect it to 
>>affect the  reflection of the window that's several yards away.
>>
>
>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.

That's cool. So if I want to take a photo and eliminate focal blur 
completely, I can just take the photo of a mirror? The reflection will 
be on the surface of the mirror, so if I focus on the mirror itself 
things reflected from any distance will all be in perfect focus.

-- 
Mike Williams
Gentleman of Leisure

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