| For the depth channel, deturmine where your focus
point starts and what you determine is the farthest you can see. For mine
I started at the f and ended at the D. or 100 & 200 in the settings.
Once those images are saved its time to go into PSP.
Open both Pictures and Highlight the window with your color channel. In the menu at the top> Masks | New | From image...
In the new window that appears select your Depth channel and hit ok.
In the menu at the top> Selections | From Mask
Your mask is now ready to add the blur. You can do this step more then once if you are not satisfied> Effects | Blur | Blur More
Now rid of the mask> Masks | Delete
A popup will ask you "Would you like this mask to merge into the current layer". Choose no.
choose> Selections | Select none And your done :)