The "GEM" in question is the Nikon Coolpix 8400 point and shoot digital camera I bought way back in 2005.
When the camera was launch in late 2004 it features the widest-angle of coverage of any digital camera available then, it was the answer to my search for true wide-angle photography from a compact digital camera!!
The Coolpix 8400 came with 8.0 effective mega pixel and a very sharp and low distortion ultra-wide 24-85mm (35mm equivalent) zoom with Extra-low Dispersion (ED) glass.
I also bought the optional WC-E75 wide-angle converter lens which takes the build in zoom lens even wider to an unmatched 14 mm (equiv) of ultra-wide coverage!