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manual/render/cycles/camera.rst

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Depth of Field Depth of Field
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Aperture Type .. figure:: /images/camera-dof-panel_cycles.jpg
Method with which to specify the size of the camera opening through which light enters.
With Radius the radius of the opening can be specified,
while F/Stop specifies the size relative to the camera focal length, a measure more common in photography.
Their relation is: *aperture radius = focal length / (2 f-stop)*
Aperture Size
Also called lens radius. If this is zero, all objects will appear in focus,
while larger values will make objects farther than the focal distance appear out of focus.
Aperture F/Stop
Also called F-number or relative aperture. Lower numbers give more depth of field;
higher numbers give a sharper image.
Aperture Blades Focus
If this setting is 3 or more, a polygonal-shaped aperture will be used instead of a circle, Set an object to be used as a focal point by the camera, causing the camera
which will affect the shape of out of focus highlights in the rendered image. to focus on the selected object.
Aperture Rotation
Rotation of the *Aperture Blades*.
Focal Distance Distance
Distance at which objects are in perfect focus. Alternatively, When an object is not used, the camera can be set to focus on an area in 3D
an object can be specified whose distance from the camera will be used. space set by the distance from the camera. Using the *Limit* Display option, you
are able to view the distance in the 3D space.
High Quality
Enables the High Quality *viewport* depth of field, giving a more accurate
representation of *depth of field*. This allows the viewport depth of field
to be closely represented to that of the render and render preview depth of
field.
F-Stop
Viewport depth of field aperture measured in F-Stops. Smaller numbers will
cause more blur in the viewport, OpenGL renders, and sequencer.
Blades
The number of polygonal sides to give blurred objects in the viewport. The minimum
number of blades needed to enable the bokeh effect is 3 (triangle). *Only available
with High Quality*
Aperture
Use F-Stop or Radius to set the aperture for the render, and render preview.
F-Stop is the focal ratio, where Radius is the the raidus of the focal point.
Size/Number
Aperture radius *size*, or F-Stop *number* used for the render, and render
preview. Using the F-Stop with a low number, or Radius with a large size will
result in a strong blur, also allowing the use of the *bokeh effect*.
Blades
Total number of polygonal blades used to alter the shape of the blurred objects
in the render, and render preview. Like the viewport, the minimum amount of
blades to enable the bokeh effect is 3, resulting in a triangle shaped blur.
Rotation
Rotate the polygonal blades along the facing axis, and will rotate in a clockwise,
and counter-clockwise fashion.
Ratio
Change the amount of distortion to simulate the anamorphic bokeh effect. A
setting of 1.0 shows no distortion, where a number below 1.0 will cause a
horizontal distortion, and a higher number will cause a vertical distortion.
.. figure:: /images/camera-dof-bokeh.jpg
Clipping Clipping
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