This seems to be a good link for explanation of DOF and the formulas/charts.
Online Depth of Field Calculator
p.s. I'm not promoting their product, just seems to be a good reference link.
Printable View
This seems to be a good link for explanation of DOF and the formulas/charts.
Online Depth of Field Calculator
p.s. I'm not promoting their product, just seems to be a good reference link.