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Gopro 3 has 12 MP in resolution. The lens and software combo does favor single width, wide angle to very wide angle, which some won't like, I realize. Fogging is cured with cheap anti=fog devices. The housing is very rugged, goes down deep and the dive housings go deeper. The basic units all come with the waterproof housing as part of the package, so you don't pay extra unless you want one specifically for diving deep.
Your G15 is a $500 camera requiring another $300 underwater housing and has a 12.5 MP resolution. So at twice the price you can have a great zoom, but it's bigger and won't work as well for video nor for places where you need small light camera.
If you understand the Gopro's intended major use - video - and its secondary use - stills - you have a very versatile camera system to work with. If you want a zooming, truly waterproof still camera that might shoot short videos, then you don't go the Gopro route, something like the Canon will do better.
Just depends upon the intented use, really.
Still running my Pentax Optio Wpi 6 megapixel
and it's seen a lot of use in Michigan.
Got it the first year it came out, still works today.
The only I miss is Image Stabilization that my
buddy has on his newer model.
Kayaks wiggle a bit and it helps, a lot
- use a StickyPod on bottom of kayak, with a tether.
Got awesome video of wrecks by paddling over them
near Tobermory,Ontario Canada aka Georgian Bay.
Scuba buddies were jealous.
EDITING is always the biggest pain, prepare ahead.
I was formerly a pro photographer, with a 40 year history using video as well, and part of my daily work is in computer graphics. So what you could post won't be new to me at any level.
But what you're saying here is that you have a thing against Gopro and you want a zoom. So be it. It's your choice.
All I said was that Gopro works (or Canon), depending upon your prefered mode of use. I didn't run down the Canon, while you do seem to run down the Gopro.
And as for having a small camera on your head, I have the original Gopro, which is twice the size of the 3, and add the wifi back as well, and it mounts easily to a headstrap, which you forget you have on in a few minutes.
BTW, when I travel and want a simple point and shoot zoomer that fits in my hand or pocket, I do take a Canon Digital Elph of a certain vintage. I also take along an older larger Canon videocam that fits in my shorts pocket. But having tried to outfit both, as well as other cameras, for work around water or in outdoor sports, I find the Gopro far superior for kayaking, hiking, biking, etc. The Gopro is elegant for its intended uses, though not perfect.
I'll skip the opportunity to make a smarmy pun about Canon.
I am also shopping for one...I am considering the new version of the Nikon Coolpix AW100 just out, the AW 110. Looks good on paper and the reviews of the AW 100 were generally quite good.The AW110 is expensive ($350) for a point-and-shoot with a so-so sensor, but has GPS, Wifi-connectivity, and what looks like good general functionality. Specs for depth and drop resistance seem to be enhanced from the AW100. I'm not sure that the changes are worth an extra $120 or so from the AW100, though.
Edit: Sorry, should have been Nikon, not Canon, in title.
Tha AW Coolpix is a Nikon (not Canon).
That aside, my friend has one and, while it makes decent pictures and has a nice screen, his fogs-up way too much. He also has an older Pentax that flooded patially for no apparent reason. We went to all the same places and my Sony TX5 (a veeery old model by now) had no issues, knock on wood. That little camera I carry in my PFD pocket often and it has seen lots of snorkeling and rolling and white water and is still going good despite the scratched-up metal exterior...
Most waterproof cameras, somewhere in the fine print, tell to replace the seals every year to maintain waterproofness. The replacement cost is about 1/2 the camera cost if not more. Something to keep in mind as one's camera ages beyond a year or two (mine is already at near 3 years of active use and I see no issues with the seals or anything else aging)...
Still use me 35mm Nikonos V wit film (on occasion)! Built like a tank an' ah' kin go fer months on a battery.
Now fer all dat new-fangled deecheatool daguerreotypes - ah' use an Olympus T-610 which be purty good, but iffin' ah's gonna shoot some decent video an' stills ah' use a Nikon P7100 (which has an actual oopticool viewfinder still) an' a Fantasea waterproof housing. A wee bit bulky but woyks great. Ah' wuzn't gonna spend $1600 on a dive housin' fer me Nikon D7000 or $4000 on a Gates fer me big JVC HD-100 camcorder.
it works for what I shoot.
GO WITH WHAT MEETS YOUR NEEDS.
"VK1NF" is right on regarding the float strap. Mine is from Olympus.
I have a friend who had lost 3 'waterproof' cameras and finally realized the truth that, it's only as retrievable as its PFD (foam strap). To which his boyfriend said, "I told you so!" Now to get him to remember, during cooler weather, not to wear his blue jeans for paddling especially when slinking under a low bridge in your kayak, which he usually dumps. Some younguns never learn.
Small aperture, no zoom, few to no settings. If you were a pro photographer you'd acknowledge this.
There is no magic to setting up a decent waterproof point-and-shoot. It's simple, try it.