Underwater help?

[danralph3]

I am about to invest in the Canon EOS 30D, and am a novice to SLR photography. I want to buy a few lenses for the camera of a half decent quality, and am unsure what to buy. I will need at least one good lens for underwater photography to fit within the Ikelite housing I intend to buy.

Can anyone suggest a good lens for underwater photography for closeup and and/or macro work?

Any advice on a good 3 lenses to cover both above and below the water would be gratefully received.

Thanks

danralph3