Questions regarding Lens Blur in Photoshop

Started May 6, 2012 | Discussions thread
cspringer Forum Pro • Posts: 19,632
Check out this demo

You might find this interesting.
Click any chess piece to bring into focus. You can do this with Lens Blur in PS.

4. Depth Map Source: Alpha channel

This is the only mode I understand, and was able to work with, successfully. But I still don't understand how to use Blur Focal Distance (I noticed that changing it from 0 to 255 has the same effect as 'Invert'.

If someone can shed some light, I'll appreciate it.

If you duplicated the background, added a mask and masked off subjects ranging from white, light grey, dark grey, black you can then use Lens Blur Depth Map/Source/Mask.

Clicking INVERT gives you no control over the blur on each subject and the Blur Focal Distance slider does.

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