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Inadvertently losing a mask while diving can be avoided by the use of a simple bungie/silicone necklace or lanyard, much like the backup regulator necklace used by DIR divers. I think the real advantage of this sort of mask is how it aids a diver with heavy task loading. Looking at a wrist or...

A quick question about the 'Black Passion' Nemo computer: is the casing made of stainless steel or titanium? Obviously the 'black' in 'Black Passion' refers to the colour of the case, but the underlying material is also an important characteristic. My guess is that it is made of 316L stainless...

- Atomic Aquatics T1 - Agir-Brokk backplate 28 and Blackbird 36 wing - Pinnacle Polar semi-dry wetsuit After months of research I chose my equipment wisely and now dive in bliss (most of the time).

I bought a few additional items not shown in the photos (bolt snaps, etc.), so my total cost would not be an accurate price reference. However, if I subtracted the additional items, I estimate that all the gear in the photos could be shipped to your door for approximately $660. That's not bad...

Here are some photos of my Agir-Brokk rig, including STA and tank bands. I include them here as an addendum to Stephen Ash's prior review of Agir-Brokk's Blackbird 36 single tank wing because Agir-Brokk has since modified its design. The Blackbird 36 now has a toroidal bladder as opposed to the...

Agir-Brokk stainless steel STA and Agir-Brokk tank bands with stainless steel cam latches

Agir-Brokk Backplate 28 and Hogarthian harness

Agir-Brokk Blackbird 36 wing label side

Agir-Brokk Blackbird 36 zipper side

Close-up of Agir-Brokk Backplate 28 and Hogarthian harness

Agir-Brokk! I chose an Agir-Brokk Blackbird 36 wing and Agir-Brokk Backplate 28 with Hogarthian harness as my first diving rig after a considerable amount research. The most important factors that influenced my decision were the Blackbird 36's toroidal bladder, the geometry of Agir-Brokk's...

Familia müesli with fresh milk and then a dive in Lac Léman!

Cool, thanks for the link archman! It appears that fiberglass measuring tape in the form of "surveyor's tape" is the adopted standard for underwater measurement. I find it strange, however, that manufacturers of this kind of equipment haven't made a variant specifically for marine use...

In my research, I recently found this website with some useful information about measuring distances underwater. http://www-personal.umich.edu/~lpt/measure.htm According to its author, Dr. Larry Taylor, conventional "surveyor's tape" may be employed to measure distances underwater. Alas, he...

I'm currently planning my mapping project for my Dive Master certification. I've decided that the kick-cycle method is too inexact for my purposes and that a more suitable method of measurement is needed. I've considered using a standard dive reel with increments graded on the line, but it...

Actually, according to what I've read, some cetaceans do suffer from DCS. A cetacean biologist can give you all the details no doubt, but I think deep diving species, e.g. Sperm Whales, can incur DCS injuries if they surface too quickly, even though they are freediving. Given the long durations...

Diving in Pacific Northwest waters in a 7mm wetsuit is very common. In fact, the majority of divers I encounter along the Oregon and Washington coast use wetsuits and not drysuits. Drysuits are commonplace as well, but I generally see fewer of them being worn, possibly due to their significantly...

1. Protei-5 DPV 2. MK15 CCR With those toys I would be Der Übertauchenmeister! Sadamune

Yes, I've observed this as well and I find it quite aggravating. I consider e-mail as the best method of conducting research as it generates a record of the information communicated. Perhaps for that reason, and maybe due to the volume of e-mail they might receive, companies may simply ignore...

I am well aware that the complexity of such transactions and the annoyance they cause makes any dive shop reluctant to proceed with them. My post, sans smilies, was directed towards shops that don't respond to legitimate purchase inquiries. I'm the sort that gets a bit miffed when I politely say...