Canon iP7200 Series Manual page 266

The (Center) mark for setting the center position appears in the Preview area.
Note
The effect level can be changed by moving the slider displayed below Fish-eye Effect.
5.
Drag the (Center) mark to set the center position, then click OK.
The edges of the image are distorted, focusing on the specified area, and the
mark appears on the upper left of the image.
Note
Click (Display Comparison Screen) to display the images before and after the enhancement
side by side so that you can compare and check the result.
Click Cancel to undo the enhancement. Enhancements made with other functions are retained.
6.
Click Save Selected Image or Save All Filtered Images.
Enhanced images are saved as new files.
Note
To save only the image(s) you like, select it (them) and click Save Selected Image. Click Save
All Filtered Images to save all the enhanced images at one time.
The enhanced image(s) can be saved in JPEG/Exif format only.
7.
Click Exit.
(Enhancement)