You have now found a blog for Jon Leirdal. I hope that the information you find here is of some interest to you. Have a nice stay.
If you need to, you can contact me via email: jon (at) leirdal (dot) net
Depth of Field Calculator
If you are looking for my depth of field calculator, have a look at my blog entry: Depth of Field Calculator for Windows Mobile 6
If you want you can also contact me via this form.