P3D Re: Impact Of Internal Focusing on Lens Depth Of Field

[michaelk@xxxxxxxxxxxxxxxxxx (Michael Kersenbrock)]

> 
> Hmmm. According to Kingslake what you are describing is impossible! DOF
> is a function of FL, aperture and focusing distance and that's it. He
> states that DOF can be increased in a lens by increasing one of the

Wouldn't the effective DOF be reduced if a lens had an overall slight
fuzzyness added (but less than the cut-off circle of confusion amount)?  That
way, the far and near depths that still met the "cut-off" would no longer
qualify as "in focus", and therefore the effective DOF would be smaller?

Only guessing (and still sick from NTFS which is some sort of flu I think)...

Mike K.


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