I just took comparison pics between my Surefire L4 and Gen 2 night vision monocular, take a look:
http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Number=516993&Main=516993#Post516993
http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Number=516993&Main=516993#Post516993