Reefwalker - 17 May 2008 11:43 AM
My experience with the G-9 has been excellent. I don’t own one, but I have taught around 6 u/w photo students with this camera, and I’m very impressed with its capabilities.
It has fast start-up, Two Custom Modes which are great for storing two sets of settings for u/w use - this makes it much quicker to change from one type of shooting to another, without accessing various menu’s. It also shoots RAW (unlike its predecessor the G-7). I like the dial that just changes ISO. The LCD screen is big and easy to view. It takes very nice sharp photos, and the JPG’s straight out of the camera are nicely saturated.
Only one minus, is that due to the lens design/construction, you can’t use an add-on wet wide angle lens with this camera underwater. This is because the lens retracts progressively into the camera as the zoom is widened. When at full wide angle, the lens is so far back that when a wet wide angle lens is attached to the front of the housing (on either Ikelite or Canon housings), it is too far from the wet lens to focus and vignettes (cuts the corners of the image) badly. But the standard lens is wide enough for pretty well anything except broad scenics, and as a macro or fish portraiture camera (In my opinion) it is as close as you will get to DSLR quality without buying a DSLR !
It is currently my recommendation for “Best Buy in Compact Camera’s for u/w use” - for what my opinion is worth 
Thank you Jeff! The research I’ve done certainly supports your comments and I think I’ve made my decision. The truth is, I do have a Canon XTi that I was planning on housing, but on some advise from a local u/w photographer I began to look into the G9 as an alternative to the high cost of it all. The ability to shoot RAW was the clincher, and from what I understand, a wide angle adatpter will work well with the Ikelite short port. Again, thanks for your comments. It’s reassuring to hear that I’m leaning in a good direction.