Analyze images, click icons to open "Image settings", modify "Lens type" to be "Fisheye", "Focal" for 10.57mm, click
on "OK" to confirm.
Select "Detect" icon on upper le corner to analyze stitching, select "Edit" aer analysis, enter the editing interface.
Details can be adjusted in editing interface. Refer to Autopano Giga oicial tutorial for detailed methods