Dfx User Guide - Tiffen.com

82 Filter Tutorials
•
Depth of Field
Depth of Field can be added to a scene by isolating and blurring only a portion
of the image. The amount of blurring is directly proportionate to the luminance
of the depth source.
1 Apply Depth of Field from the Lens category.
2 Try out some of the presets.
3 If the Parameters window is not showing, click the Parameters tab at the bottom
of the Presets window.
4 Set the Depth > Depth to Selection.
5 Adjust the Horizontal and Vertical Blur to your liking.
In some of the filters, a selection is generated to create the desired effect--in
this case, depth of field.
6 Change your View to Depth to see the selection values.
The areas that are white in the selection are the areas where blur will be
introduced. The location of the blur within the scene can be adjusted by
modifying the Selection > Position and Selection > Range parameters.
7 Change the Selection > Position parameter if you want to select different values
to be used for the selection.
8 Increase the Selection > Range control to add more values to the selection.
Decrease for less values.
9 Increase the Selection > Blur parameter to soften the transition areas of the
selection.
10 Change your View to Output to see the filtered image.
The Depth of Field filter can also use a grad or an image as the depth source
instead of the selection.
11 Set the Depth to Grad.
12 Adjust the Grad > Direction, Corner Points and Size to change where the blur is
added.
To adjust the Corner Points, just click and drag them to the desired location.
Dfx User Guide
•