I'm thinking of getting this lens for my upcoming trip to the Phils:

http://www.dpreview....tamron70200.asp
I think I'll be able to fit the lens in my multi-port and be able to zoom and focus underwater. The lens have a minimum focus distance of 30" but I think it will work well with a +1 or +2 diopter fitted.
What are your thoughts? The lens is just now coming available at $700.
I'd like something more versatile than my Canon 100mm or Sigma 150mm
Cheers
James