Depth of Field:
This is using Photoshop to create a maximum and minimum depth of field. In Photoshop one can go to filter, blur, and then Gaussian Blur. From that point one takes the history tool brush to create the depth of field.
0-50-100:
When using this technique it creates a better and more realistic look. The first plan is 100 opacity and flow, the next is 50 opacity and flow, and the last one 0 opacity and flow. This creates a nice even flow.