![]() ![]() You'll notice that I mentioned metal-to-metal SEATING, not sealing. Remember that the door and/or the lens are seated metal-to-metal, and the o-ring sealing ability comes from its alignment within all four sides of its groove, and not from tightening force of the mechanism (unlike some of the Ikelite case models).ĭeleted pending I have used various Nikonos and other underwater cameras during my 45+ years of diving, and can safely say that I understand about water & pressure-related problematics. The screw-down arangement or tightening latches do not augment the sealing quality. After that, the pressure makes both the opening of the hatch or removal of the lens nearly impossible. Nikonos V's lens is sealed and spring-locked into its port in the same way, and the back door had a ring in the groove, loose hinges on one side and a locking latch on the other.Īcually, any hinge / latch arrangement is only important in the first two or so meters of depth anyway, since the seals have to be in proper "starting" positions to adjust to the growing pressure. The lens locks it together, its own o-ring sealing the port simultaneously. See here for more detail:Īs you recall, Nikonos III uses an o-ring around the upper rim of the deck simply pushed into the casing. The hatch and the place it takes can remain the same. ![]() But these mostly are sealed by o-rings: for a the o-rings do not have to be screwed down into position, there are other ways. it is a different discussion entirely, and quite extensive at that. The principle ensures that the greater the pressure, the better the sealing, so there is no excuse for the manufacturers for not implementing them.Īs to the camera housings. The quantity of the lubricant used is very little, just so that the o-ring appears shiny, it is no problem at all. It's only so they can adapt themselves (move) within their groove toward the low pressure zone.The ring does not have to be taken out of the groove and re-lubricated every time, only when the water washes the lubricant off. It is a common misconception that the grease aids in sealing. I use Canon DSLRs as principal cameras.ĭefinitely o-rings. This can be done quickly with about 3 menu selectionsy.GPS finds location quickly (few seconds) when turned back on. Need to turn off GPS function when not in use because it consumes the battery in a few hours even with camera off. External battery charger is extra (the one from the WG-1 works). Two downsides: you have to find your own fitting case if you want one. Picture quality is good, much improved over the older WG-1. That makes the limited battery stamina less of an issue. lightweight, and cheap-I got five, they charge in relatively short time. ![]() ![]() Other cameras allow use of a cellphone as a remote but that is not practical for a rugged outdoor camera. The reach of the remote is only a few feet, however. The WG-3 is the only compact I could find that has built-in time-lapse mode, and a separate, very compact remote wireless remote (accessory item). ![]()
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