Depth of field

[P3D John D. Roll <johnroll@xxxxxxx>]

I was wondering if anyone would have a table or formulas to find the depth
of field for a 30mm focal length lens, focussed at 42cm from the subject to
the film plane for f16.  I understand that the depth of field is dependent
on the value of the circle of confusion.  I would be happy with any
reasonable value.  I also understand that the depth of field is usually 1/3
in front and 2/3 behind the plane of best focus.  I plan on checking the
values with a test roll, but I would like some good starting values.  If my
project works out, I'll bring some slides to Rochester.
John Roll,Rockford, IL, USA


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