What's the difference between the Fisheye1 and Fisheye2 setting on the camera?

The Coolpix 4500 has two fisheye settings -'Fisheye1' and 'Fisheye2'. 'fisheye1' gives you the full 180-degree circle and 'fisheye2' is the full-frame mode. Fisheye1 meets the Panoweaver needs. For more information, please refer to the user manual at http://www.easypano.com/download/Panoweaver_manual.pdf.