Comparison between the HD HERO Original ('HERO1') and the new HD HERO2 Professional ('HERO2'). Both cameras were set to 1280x960@30 fps. They were mounted to the keel using the GoPro 3D HERO System's housing (the sync cable wasn't used), so their lenses were as close together as physically possible.
For a more accurate comparison, download the original (under 'About this video').
Throughout the video, HERO1 audio is panned entirely to the right while HERO2 audio is panned to the left.
The HERO1 appears to have a slightly wider FOV than the HERO2.
The day was overcast, so lighting was less than ideal. Wind on the ground was practically nill.
Tows courtesy of hangglidetexas.org .