Grass Valley Zodiak v.6.0 Mar 15 2006 - Manual (Page 281)

Zodiak — User Manual 281
Still Store Menus
Touching the Crop data pad brings up a similar menu with Top Crop ,
Bottom Crop , Left Crop , and Right Crop controls ( Figure 197 ). The image can be
cropped to any rectangular shape. These controls are keyframeable (see
page 437 ), but resolution is limited to pixels and lines so interpolated
motion may not appear smooth. For smooth motion use a Transform
Engine.
Figure 197. Still Store Playback Menu, Crop Controls
The Production Aperture button sets crops slightly wider than Clean Aperture,
to meet the SMPTE recommended practice. This permits passing the
maximum amount of image data down the signal chain, which can help
hide edge artifacts during subsequent image processing.
The Clean Aperture button crops the image to exactly match the aspect ratio,
to meet the SMPTE recommended practice. Crop values are set to 3.0, -3.0,
-4.0, 4.0 with this button.
These buttons adjust crop values, which are keyframeable (see page 437 ).