At the risk of getting hammered on this thread I'll throw out my opinion anyway as it's just one mans perspective.
Keeping in mind the Canon G10 is a point-and-shoot camera, albeit a good one, spending approx. $1000. on a Patima housing + another 500 to 1000 for one or two strobes seems out of proportion for a point-and-shoot camera. If you have almost 2k to spend on a housing and strobe(s) shouldn't you be buying a DSLR camera? There is no comparison in picture quality difference between the two.
Hi Gilligan,
The point you make regarding the justification for spending the $ to set up a G9/10 in a Patima Housing vs. setting up a DSLR System is a very valid one. It's a question that I've studied on a regular basis, because I would like to ultimately upgrade to a dslr system. However, each time I've sat down and crunched the numbers, as I did before committing to my G9/Patima system, I've found that setting up a comparable dslr system is Considerably more expensive, at least by my math.
I know you can find cheaper cameras and systems, but when you look at quality dslr systems, boy are they expensive!
Ikelite has some pretty reasonable prices, but I generally disregard Ikelite as an option for me, and that's because I use Inon strobes which are generally not compatable with their housings, because the electonics are different, and Ikelite's housings do not have provisions to connect strobes optically.
Recently, I've been considering buying a Nikon D300 camera, and setting it up in a housing. I know the D300 is pricey, but that's only one factor contributing
to the costs. Here's some of the things that I've found to contribute to the much higher dslr costs, and trust me, I'm pretty sure I'm low-balling the numbers:
1) Quality dslr housings are expensive. Sure, some manufacturers make them for approximately $1500 or so, but realistically, a quality dslr housing will run you somewhere between $2K - $3K+. (Assume Total = $2,000)
2) If you want to shoot true wide angle, then you will need a quality dome port to support your 10 to 14 or so milimeter lens. Most quality dome ports for that kind of lens, will run you in the range of $800 - $1200+. I know, that sounds like alot, but it just seems to be the case, each time I look into it. Oh, and don't forget to add another $500+ for the lens itself. (Assume Total = $1,300)
3) You also need a port for macro. I've always looked at 100mm macro, which will run you another $400+ or so. Oh, and don't forget to add another $500 or so for the 100mm lens. (Assume Total = $900)
4) Let's not forget to throw in the camera as well. You can buy a dslr in the $600 price range, but realistically, a nice quality dslr will run you $1K to 2K+. (Assume Total = $1,000)
Consequently, when I add up these numbers, I end up with a total for the camera, lenses and housing at about $5,200, and that doesn't include some of the other extras that always get added on, such as extra batteries, extension rings, sync cords, etc.
The truth is, the system I've been looking at, which would include a Nikon D300 with a housing that would allow me to go to 300' depth (yep, I'm a tech diver), would run me approximately 50 to 100% more than the numbers I've totaled here, because if you go with higher-end housing and add a quality viewfinder on it, the cost just skyrockets. And fortunately, I already have the strobes, arms and tray.
Now for the somewhat comparable point-n-shoot comparison...The Patima housing runs approx. $1,000. The G9/G10 can be purchased for approximately $450. A good Inon wide angle lens, with the dome addition for awesome wide angle will run you approximately $750. Two Inon close-up lenses will run you approximately $300. Grand total, should be approx. $2500.
Dual strobes, such as the Inon z-240s I use, would work for both systems, and the tray and arms are also comparable, so we'll assume they are neglible for the sake of comparison.
So when you compare a lower-end dslr camera/housing setup, to a high-end point-n-shoot camera housing setup, you are probably $3000 or so apart in cost, when you add the sync cords to connect the dslr. For most folks, an extra $3K is a fair amount of cash, especially when you can get some fairly respectable results with a quality point-n-shoot setup.
I suppose one option is to buy a used dslr system, which can save you a bunch of $, but my problem with that has always been, that most older dslr camera systems come with a terrible screen size and resolution, compared to the newer systems. If you've never shot with a viewfinder underwater, that's at least 3" in size and 230,000 pixels of more of resolution, like the G9, then you don't know what I mean. Once you use that kind of display, you'll never ever ever ever be able to go back to a lower size/resolution option, trust me.
My apologies for going off on a tangent on this thread, but this may be a question that many folks out there have considered, and until you actually sit down and put pen to paper, it's often difficult to realize how expesive a quality dslr system is, compared to a point-n-shoot sytem.
Just my $0.02.
Adrian