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The system starts out with the Olympus C-5050 Zoom Digital Camera, featuring: 5 megapixel resolution. Full manual and automatic controls - shutter, aperature, fully manual control, and "full automatic" modes. MOVIE MODE shoots digital movies at 320x240, 15fps, for as long as your memory...

You're probably not, but the 70' stop is one you'd have to make if you were doing real deco (for a gas switch) in most cases. It won't hurt you substantially in terms of gas loading on any dive to 100' or deeper; its not a long time in this case, just one minute, and it gets you "in sync"...

NACD will permit doubles at the instructor's discretion. Hint: If you're going to use them, get some NOW and an appropriate rig to use for a while in open water. They trim COMPLETELY differently than singles and the first time you use them you will be quite a comedy piece for your friends :D...

Yep.... There have been some double fatalities due to nets and other debris on wrecks. At least that's what it looked like when the bodies were found. Whether that's a cause or effect (e.g. did they die due to entanglement, or die and THEN get entangled) is sometimes difficult to figure...

Why? You know what the time was at the last time you looked, right? Let me posit something Andy. You're on a dive with your computer. You know you're within the NDLs when you look at it, and at 20 minutes dive time. You look again, and its blank - its puked. You're not sure exactly...

The best conservatism move you can make is to ascend on EVERY dive like you are on a deco curve. For example, for a dive to 100', you might make a stop at 70', 60' and 50' for one minute, then 40 and 30 for 2, then 20 and 10 (or 15) for 3 each, and make your final ascent at a rate of one foot...

Actually, most "buddy dive incidents" involve buddy separation. That is, the casualty is alone at the time of the incident. The problem is that he did not plan and intend to be alone. If he had, the incident likely would not have happened, as he would have been equipped, mentally and...

Had he been with a buddy, two would have been in trouble. Indeed, deeper two would have died instead of one. True, but in some of those situations, having another person there just increases the body count. In the example you cite, it took FOUR people to get one out.

You have to look at the statistics. We've been over this before here, but the bottom line looks something like this: 1. About 100 divers cack themselves from ALL causes (including those that set Pete and others off - diving in overheads w/o certification, solo diving, etc) This is...

You know (well, ok, at least through here) more than a few ordinary divers who encourage that too :D

I heard about that incident. You have to wonder if that reg was a rental......

Yes. "Spare Air"?! You're kidding, right? How about "sufficient redundant gas supply to reach the surface, with all ordinary stops, at twice the diver's average RMV across the last 20 dives in his log." That might be a good STARTING POINT. I disagree with point (4) in its entirety; the...

Find a hydro shop (they mostly do fire extinguishers and such) and take it there yourself. There is not only no reason not to go through the dive shop, you will get nothing other than a bigger bill from doing so. You can get a hydro done for $15 or so. It takes just minutes, as was noted.

Cool!

That's definitely one of those "if you need a class, you're not qualified" things. I don't see how you can teach that one, to be honest..... :D

Your trim will vary depending on how you have it set. The important thing is that you can get to it. If you can't, you can DIE if a mistake is made. Being able to reach your valves is a PRIMARY skill.

I don't see how the reg cover comes off SECOND in any sequence; my money is on that being the initiating factor in the accident.

Well maybe not, but it doesn't need a gas engine (or electric power), which is a fairly significant safety improvement and, if the price is right, it might fly. Duration could be really good since the only gas required from the tank is make-up (for decents, etc) much like a rebreather, plus...

I hear that one. I had a friend of mine have an LP hose blow underwater last summer on my boat, and ANOTHER one had an LP hose blow on the SURFACE when he turned on the gas. In BOTH cases the hoses were, well, hosed. The underwater one was a bad scene; that, by the way, leaves you with a...

I have an Abyss Doubles wing that has double pulls, and I find it useful, particularly if I have something in one hand (like a goodman handle!) and need to dump. Yeah, yeah, I know, you only need one dump. OK, but if that hand is busy having the other one is nice! BTW, the Abyss wings are...