OK the 3 paramaters that control DOF and also the resultant bokeh.
Distance to subject and or backround
Focal length of the lense
Apature of the lens
Now to fill the frame equally between FF and crop you have to change 1 of the first 2 so you will change the resultant image.
You will either have to move closer to the subject or use a longer focal length.
Jul 09, 2009 at 12:34 PM
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