The Focal Distance
represents the focal region and the angle of view that will be captured. A longer focal length has a shallow depth of field causing objects to be more blurred outside of the focal region while shorter focal lengths have a wider depth of field with sharper focus and fewer objects out of focus. The f-stop number can stay the same and changing the lens size adjusts how shallow or wide the depth of field effect is.
Click image for full size.
Once you’ve set the Focal Distance
and the Focal Region
, you can use the Near Transition
and Far Transition
to adjust the distance between the focal region and the fully blurred scene. In addition, you can adjust the Near Blur Size
and Far Blur Size
to further tweak the look of Gaussian DOF.
Gaussian DOF with adjusted values for Near/Far Transition and Blur Size to produce a nice depth of field effect.
In this example, the following values have been set to produce a soft depth of field effect for near and far regions.
- Focal Distance: 215
- Focal Region: 2500
- Near Transition: 500
- Far Transition: 400
- Near Blur Size: 2.0
- Far Blur Size: 2.5