Just got back from Grand Turk where I took my first underwater shots. Camera is a Fuji FinePix F10 and I used the Fuji housing and internal flash. These were taken in Manual mode with the ISO set at 100 (everything else is automatic and can't be overriden, except for a Macro setting for closeups).
Full size versions and a few more pics at http://www.scubaboard.com/gallery/showgallery.php/cat/1790.




Full size versions and a few more pics at http://www.scubaboard.com/gallery/showgallery.php/cat/1790.