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PostPosted: Mon Jul 21, 2008 5:22 pm 
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I know that it does, just curious about why ;)

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PostPosted: Mon Jul 21, 2008 5:27 pm 
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Have a look at the Circle of confusion diagram near the top of Understanding Depth of Field. If the lens were larger the light rays would be converging even more strongly and so the focus error represented by the circle of confusion would be reached even more quickly for objects not at the plane of optimal focus.

Bob.

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PostPosted: Mon Jul 21, 2008 5:36 pm 
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Wikipedia is also always a good point to start from.

Ben


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PostPosted: Mon Jul 21, 2008 10:04 pm 
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Thanks guys :) I was in way over my head reading the page Bob gave me, but that image on wikipedia explained it to me :) I guess I'm just to lazy to lok for my self ;)

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