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Important Terms There are several terms used in this user guide and in other tutorials for FocalPoint that may not be familiar to all users. This is a brief list and their definitions.
| FocusBug: The FocusBug is the main control used in FocalPoint. It
appears as a wireframe insect with a body, legs and antennae. You
reposition the FocusBug by clicking and dragging its body. You adjust
its size and rotation by pulling and rotating its legs. Finally you
control the amount and type of blur as well as the feather with the
antennae.
| | | Sweet-spot: The sweet-spot is the area under the FocusBug that is
uneffected (protected) from the blur. You control the sweet-spot with
the FocusBug.
| | Bokeh: The bokeh is the area outside of the sweet-spot that is
blurred.
| | | Tilt: Photographically, tilt is created by tilting the lens
plane of camera to be not perpendicular to the film plane. This is
accomplished by using speciality lenses such as tilt-shift lens or view
cameras. This technique allows the photographer greater control over
the plane of focus and depth of field. In FocalPoint the tilt control
allows you vary the feather across the sweet-spot to simulate the tilt
effect.
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| Vignette: A vignette is a darkening or lightening of the edges of an image. This can help focus the viewers eye. Traditionally this technique is accomplished using a special lens hood or by burning in the darkroom.
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See also
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