acsherwood
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Hello, I am looking for a new computer with a non conservative logarithm. Recommendations?
Computers with non-conservative algorithm.
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Stoo
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Shearwater computers let you adjust gradient factors to pretty much whatever you like...
I might as well ask before someone else does... why do you want such a computer?
I might as well ask before someone else does... why do you want such a computer?
Look at the Oceanic computer line. They have computers that will fit all budgets and all have dual algorithms so that you can choose how conservative or liberal in your diving depending your conditions and personal preferences and your buddy's computer algorithm. Oceanic has one of the most complete dive computer lines for the recreational diver.
If you are looking for a technical dive computer, then you will need to look for a different computer. In about a month's time, few dive computer manufacturers are coming out with their updated dive computers and it will be wise to wait to see what they have before deciding on which way to go.
If you are looking for a technical dive computer, then you will need to look for a different computer. In about a month's time, few dive computer manufacturers are coming out with their updated dive computers and it will be wise to wait to see what they have before deciding on which way to go.
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algorithm not logarithm
all algorithms have a somewhat similar level of conservatism, what makes certain computers more or less conservative is the implementation of those algorithms. You can make a Shearwater one of the most or one of the least conservative computers on the market and you have complete control over that. Very few computers allow you to control the conservatism like that. Oceanic as mentioned above allows you to choose between two different algorithms though one is not necessarily more or less conservative than the other. One is more conservative with certain profiles, the other more conservative with different profiles. No different than the NAUI tables being less conservative for the first dive compared to PADI, but much more conservative for repetitive diving.
DEMA is coming up in a month or so and there was a major changeover in the computer manufacturers last year so this will be a chance for them to release quite a few new products and we are likely to see a lot of sales on old products with the injection of the new so I would recommend waiting until Black Friday sales before you purchase.
all algorithms have a somewhat similar level of conservatism, what makes certain computers more or less conservative is the implementation of those algorithms. You can make a Shearwater one of the most or one of the least conservative computers on the market and you have complete control over that. Very few computers allow you to control the conservatism like that. Oceanic as mentioned above allows you to choose between two different algorithms though one is not necessarily more or less conservative than the other. One is more conservative with certain profiles, the other more conservative with different profiles. No different than the NAUI tables being less conservative for the first dive compared to PADI, but much more conservative for repetitive diving.
DEMA is coming up in a month or so and there was a major changeover in the computer manufacturers last year so this will be a chance for them to release quite a few new products and we are likely to see a lot of sales on old products with the injection of the new so I would recommend waiting until Black Friday sales before you purchase.
This isn't exactly how Oceanic explains and sells this feature of their computers in their literature, is it?
R
redacted
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I favor older Oceanic computers from ebay at less than $100.
ManBearPig
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Had a bunch of Oceanics and just got a Shearwater. Holy Crap the Perdix is such a far superior, and easier to use computer than anything Oceanic has it is ridiculous. On one dive my instructor showed me a different feature on the computer underwater and I could replicate it immediately. In diving oceanics 8 years I still search for stuff on them.
ScubaJill
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"Frequent dives and short surface intervals don’t allow enough time between dives to effectively off load the build-up and rapidly starts to affect your experience. The Pelagic DSAT was built for handling this type of diving, frequent dives to 30 metres or shallower depths"
" The Pelagic Z+ algorithm is perfect for deeper dives in more strenuous conditions like cold temperatures. In most cases we’ll have longer surface intervals to have a bite to eat, warm up, chat about the dive, etc and the algorithm takes this into account to safely give us as much time in the water as possible"
Not quite how they worded it, but same meaning. Use DSAT for the rapid repetitive dives where the first dive may not have as much NDL time, but as the dive #'s start racking up you'll start having more NDL time than on Z+ where the first dive is liable to be longer, but the repetitive dives won't necessarily be.
I'm not a fan of switching algorithms around. Find one that you agree with and believe in, and then use a computer that as an informed diver you can adjust based on conditions and variables. Unfortunately as an industry we fail divers in giving them the real understanding of how and why this works and teach to "fly" a computer without understand why someone may or may not want a conservative algorithm. Personally? I dive what is considered to be extremely conservative algorithms when recreational diving because decompression isn't scary *just extraordinarily boring*, and I would rather have a 5 minute mandatory deco stop and know I'm getting out of the water with 70-80% theoretical saturation than have an optional 3 minute stop what if I skip it I might get out at 95% or higher theoretical saturation.
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