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Bishop
Aug 15, 2000


That's a real interesting post. I did not know that they gave you such a high ppo2 in chambers, even if you were symptomatic. One thing I'd say is that I'm talking about situations where you do a normal slow ascent and just run out of deco gas. When that happens you can surface, get more gas, and go back down to finish cleaning up. Always plan your dive correctly, but sometimes poo poo happens and you are down longer than expected or something else goes wrong. I just think IWR is an option that people should know about.

Using pure o2 deeper than 20ft freaks me out and I'm surprised it's done that often.

Also here's an interesting review of some cases where people did in-water recompression. A lot of these people were bent to hell before they started to recompress. The results vary quite a bit too.
http://www.anaspides.net/documents/scuba_diving_documents/In%20Water%20Recompression%20Case%20Studies.pdf

Bishop fucked around with this message at 16:40 on Dec 19, 2012

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SlicerDicer
Oct 31, 2010

PAILOLO CHANNEL

East gales to 35 kt. Wind waves 17 ft. Scattered showers.

Its time to DIVE


pupdive posted:

Read the linked file of Richard Pyle and he says exactly that:

In other words this is not in water recompression as most people bandy it about, and thus is a ways from what most divers think it is. It is absolutely not going in with a 60% o2 mix, or any kind if Nitrox at all; it is going in with 100 o2 and breathing it in water at a PPo2 of 2.0 with a full face mask. And it often results in seizures. And it works because treating DCS with nitrogen is silly, and the Richard Pyle version of IWR is absolutely not doing that. It is accepting o2 hits as the price of doing business.

Understood, I was just merely pointing out if you are in middle of nowhere no chamber and being stupid. You might not have to die

But then again tough choices come to play.

Loving Africa Chaps
Dec 3, 2007


We had not left it yet, but when I would wake in the night, I would lie, listening, homesick for it already.



On the subject of DCS i have a feeling it could be managed more effectively in the initial stages. Particularly by the technical diving community. If you have someone on a facemask with high flow oxygen on they will have a maximum Fi02 of 80%. That means the nitrogen gradient isn't going to be as steep as people think it is slowing the offgassing.

One of the most effective things i can do to someone as a doctor to improve their oxygenation is use CPAP. That gives you a true 100% o2 and opens up the alveoli increasing gas exchange. The obvious issue is using pressurised gas in someone who might have barotrauma and need for specialised equipment but we're talking pressures of 10cmH20 (0.142 PSI).

SlicerDicer
Oct 31, 2010

PAILOLO CHANNEL

East gales to 35 kt. Wind waves 17 ft. Scattered showers.

Its time to DIVE


Loving Africa Chaps posted:

If you have someone on a facemask with high flow oxygen on they will have a maximum Fi02 of 80%.

Unsure how you compute this? I have 99.7% O2 in my O2 tank.. With a regulator I am breathing in 99.7% O2 there is no "flow" its just pure O2.

If I breathe this underwater I cannot grab nitrogen molecules from the surrounding water. Unless you are talking surface. However if I was having issues I would gladly breathe off regulator at surface to get pure O2.

Loving Africa Chaps
Dec 3, 2007


We had not left it yet, but when I would wake in the night, I would lie, listening, homesick for it already.



SlicerDicer posted:

Unsure how you compute this? I have 99.7% O2 in my O2 tank.. With a regulator I am breathing in 99.7% O2 there is no "flow" its just pure O2.

If I breathe this underwater I cannot grab nitrogen molecules from the surrounding water. Unless you are talking surface. However if I was having issues I would gladly breathe off regulator at surface to get pure O2.

Yeah sorry i was talking surface. Regulator would give you 100% too but i think there's a common misconception that a standard medical oxygen mask at high flow does aswell.

macado
Jun 3, 2003

How to keep an idiot busy, Click here.

Deco diving, fun stuff. On that topic..for most of my dives I've used an AL40 with either 50% or O2 depending on the dive. One of my goals is to get more experience carrying multiple deco gases; I've only done that a few dives since my initial deco procedures certification where I have carried two bottles, most of my deco dives at this point have been with one AL40.

I finally got around to converting an AL80 that I am going to dedicate to 50% and keep my AL40 and use it exclusively for O2.

I'm not doing anything terribly deep (~160ft) but even in my limited experience I've found having two deco gases makes for a much more efficient deco. Seems like it's sort of a crap shoot in the 100-150ft range though.

The dive I am doing this weekend is sort of a gray area. I'm planning on 120ft for about 40 minutes BT. Does it even make sense for me to carry two deco bottles for such a limited time? While it certainly wouldn't be fun, I could do all my deco on backgas entirely if I were to lose my deco bottle.

59 minute runtime with (O2 and 50%) versus 63 minute runtime with only O2. For extra 4 minutes, seems like not worth it to carry a second bottle.

I'll be venturing into trimix next year which I know will mean more deeper stops which means I'll want to get on Nitrox 50% to get helium out of my system sooner I would imagine. Makes much more sense to become proficient managing two deco gases before I make the jump to trimix.

let it mellow
Jun 1, 2000



Dinosaur Gum

Edit: Sorry for anyone that got smacked with my previous post's idiocy, should be fixed now

Pictures from Aruba! This was one of our best diving experiences yet, if not the best. I can't pin down exactly why, but it was some combination of us getting better at consumption and buoyancy (to the point where we fine with lasting til pretty much everyone else), a fantastic dive operation that we selected based on TripAdvisor rating and would unreservedly recommend (JADS, if anyone wants a recommendation) and just some awesome dive sites / conditions.

I stil have backscatter issues, but I think the pictures are looking better than my last effort.

Anyway, on the first day we did a couple of airplanes on our first dive. The firest one was relatively small.



Let's see... Altitude -60', air speed ~2 knots, air temp ~80F... I think most plane gauges handle that, right?



Hi there, going to join us for the next plane?



The second plane.. Looking at this, I think we talked about it in the predive briefing, right? (I know it has very bad backscatter, but wanted to give an idea of how this one sat for the next couple of images - I was relatively level / plumb when I took this)



Heading aft, I distinctly remember something about this, but can't remember what.



Oh yeah, I remember. We're checking out the cabin for T class tickets.



At least the view's good! Well, it is if you know what to focus on, which I obviously didn't in this picture.



I hadn't see a lot of trumpet fish prior to last week, but they were everywhere on this trip, to the point that a day or two in, I stopped taking pictures of them. I dunno, I thought they were semi-rare before this trip. We're definitely taking some aquatic life courses.




Speaking of learning about aquatic life, I already knew this part. A bit more on it later, though. I will say that out of water, they sure deflate a ton. Most didn't make it out of the water for bounty claiming though - again, more on that later.



Something's in front of Mrs. jackyl (wearing the split fins) here. Maybe it is what was causing that weird humming we had been hearing for the last 15-20 minutes?



Oh, yeah, it is an Atlantis fish. I think they're somewhat rare and can only be found in specific locales at certain times or something.



I'm assuming they were taking pictures of us too, but who knows since it was dark in the sub to let them see out. That was pretty loving cool, although this guy was thoroughly unimpressed.





This picture had the most color saturation of any picture I took all week and I have zero idea why. I don't remember the depth on it, but the one immediately before and after didn't look like this and it isn't even that good of a picture or that interesting of a subject, but what the hell?




This on the other hand shows two things I need to learn to do. One: blow underwater bubble rings. I can do smoke rings, so this is probably doable with little effort. Two: center them in photographs. That may prove harder for me, as I'm sure you can tell already.



Looking at the photo timestamps, this gives some idea as to the depth on that other picture. Also shows my improving consumption. What the hell is going on in that picture????



Probably the best photo I took all week, plus it has broncos colors and is unobstruc..... ffffffffffffff



Mrs. jackyl was a bit slower than me on the descent here, but it led to what I thought was kinda a cool picture.



More proof I need to work on timing and centering. This picture was gonna own, I knew that when I was taking it. Oops.



She really wanted a picture of this guy. I tried like 5 times and this was the best I got.



This wasn't so bad, though! We only saw a few turtles, and none like the massive ones we saw wall diving near West Caicos.



Most of the lionfish ended up as lunch to try to train some natural predators. All but 1 of the 16 or 20 killed (the worst I've seen as far as population goes so far, actually) that I know of were fed to this guy or a relative. That one was surprisingly deflated when tossed on the dock, but I'm dumb and didn't think to get a picture. Also you'd have an open mouth if I had better timing, sorry.



Yours truly going for his first kill. How hard can it be, right? Decent form, good aim, away from the coral.. Well, Mrs jackyl didn't take a whole lot of pictures, but this is better than most of mine, so do you know where this is going?



Well, hitting it isn't hard. Keeping it on to ensure its dead, though? I sucked so there's no proof or certainty about whether I did in fact do my job.

Hopefully this guy avenged my fuckup



Lobster!




And two more shots.



Guess when a bunch of divers are around you taking pictures, you decide your camo might not be working properly.



Well, of the 300+ underwater pictures we took, those are the ones I thought worthy of keeping. Others might be better with some additional tweaking, but this post is too long now anyway. Awesome trip and I cannot wait to get underwater again.

let it mellow fucked around with this message at 21:22 on Dec 19, 2012

SlicerDicer
Oct 31, 2010

PAILOLO CHANNEL

East gales to 35 kt. Wind waves 17 ft. Scattered showers.

Its time to DIVE


macado posted:

Deco diving, fun stuff. On that topic..for most of my dives I've used an AL40 with either 50% or O2 depending on the dive. One of my goals is to get more experience carrying multiple deco gases; I've only done that a few dives since my initial deco procedures certification where I have carried two bottles, most of my deco dives at this point have been with one AL40.

I finally got around to converting an AL80 that I am going to dedicate to 50% and keep my AL40 and use it exclusively for O2.

I'm not doing anything terribly deep (~160ft) but even in my limited experience I've found having two deco gases makes for a much more efficient deco. Seems like it's sort of a crap shoot in the 100-150ft range though.

The dive I am doing this weekend is sort of a gray area. I'm planning on 120ft for about 40 minutes BT. Does it even make sense for me to carry two deco bottles for such a limited time? While it certainly wouldn't be fun, I could do all my deco on backgas entirely if I were to lose my deco bottle.

59 minute runtime with (O2 and 50%) versus 63 minute runtime with only O2. For extra 4 minutes, seems like not worth it to carry a second bottle.

I'll be venturing into trimix next year which I know will mean more deeper stops which means I'll want to get on Nitrox 50% to get helium out of my system sooner I would imagine. Makes much more sense to become proficient managing two deco gases before I make the jump to trimix.

Take my insight for what its worth, I use bailout gas obviously as I am on a rebreather so this is not applicable to most scenarios. However deco vs gas vs mixes is applied when computing how much is needed.

I can go pound sand at 34.4m usually not much deeper if I try. However its easy to run up usual 25 mins of decompression obligation, if its a busy day I can hang out longer my computational math tells me under some circumstances I would want to have 80cf of bailout. I carry x2 40cf tanks. As stated above 38% + 100% is what I run for that dive with air diluent. Its a rigid dive I do twice a week same in same out to some degree.

Here is the monkey in the wrench. Lets say you are down there herpin and derpin.. what happens if there is schooling sharks above you? Do you consider it acceptable risk to go up in and amongst those possible hostile animals. I will not put myself in midwater with sharks even though I intentionally dive with them twice a week. I am under no illusion I am safe on bottom either but I can take more defensive positions if needed or try.

So any number of problems can keep you on the bottom longer than you had planned do you want to be questioning if you have enough gas to get to surface? I am soon for longer deco dives to carry x2 80cf tanks as I plan on hanging out at 30+m for over 2 hours LOL!!

With my conservatism settings I could be somewhere in the neighborhood of 60 mins of deco.. by doing so lets face it I can be stuck at 27m for lord knows how long while working my way back to where I want to be picked up as I am not willing to push myself halfway to russia off molokai.. I must come up at the same spot for my own safety so I have to carry enough gas to put myself there. I am doing live dive so there is no chance of dropped cylinders at all. I can send up a yellow marker bouy but they would have no idea what I needed unless I attached a slate to it writing it.. However its just easier to bring what I need.

What I am saying is when you start doing decompression diving you got to plan for what you will do if this or that happens. I am reasonably confident my rebreather will not fail.. However in the event it does and I have to start breathing open circuit gasses.. I want to have enough to last at depth.

below is based off 30m, as the deeper spot I am in current shadow and can get out of fast so its of less concern than 30m depths.
38% at 3.96 ATA 1.5 PPO2
3.96 ATA x .6 CF SAC rate, 2.3cfm used.. 20 mins to GTFO Assuming I am not battling current that can go higher? Ventilation rates of 1.2 are not out of sight in my mind to battle currents..
3.96 ATA x 1.2 CF SAC rate 4.7cfm I got 10 mins to GTFO with 80cf..

And by GTFO I mean to shallow enough depths that I will consume less air.

Sorry to ramble so much Macado but I do not intend on died. I may carry way more gas than anybody else and more weight but I am young, I can do it.. I dont care its likely to save some idiots life some day. Maybe my own? Ohh and note I am putting a 2nd O2 clean reg on my O2 bottle once its at 80cf.

Plan for ALL THE THINGS!! As best you can.. Think of worst case and what you will do

SPERG RAGE or something.

jackyl posted:

something something something photos something something

Awesome photos I love the french angel

SlicerDicer fucked around with this message at 00:55 on Dec 20, 2012

macado
Jun 3, 2003

How to keep an idiot busy, Click here.


Thanks. I definitely appreciate the advice. I always run my stuff through v-planner and try to keep several "oh poo poo" dive plans on a slate in my pocket for contingency. At this stage in my deco planning, most of my dives can be deco'd on backgas if I were to lose a deco bottle. I usually dive with double HP100s or LP95s with very generous fills. I agree with you about always having much more gas than needed.

In this dive, If go any deeper than 120ft i'd have to take a shovel and start digging. Most of dive will be ~105-110fsw. Have contingency plan for overstaying by 10 minutes or losing my deco bottle.

At this point, I definitely think I should start carrying two deco bottles for practice.

let it mellow
Jun 1, 2000



Dinosaur Gum

SlicerDicer posted:



Awesome photos I love the french angel

Thanks, I think we are going to blow it up on one of those stretch photo prints you can get and put it in our water themed guest room. We both love that picture. I may also see if a TFF guy is willing to make it all orange and blue and change my av.

Also, I may be in Hawaii on a work trip sometime in 2013 and will of course stay longer, with my wife joining me, so I might hit you up for site/shop recommendations if you don't mind. I will buy you dinner or drinks or something in exchange, of course!

SlicerDicer
Oct 31, 2010

PAILOLO CHANNEL

East gales to 35 kt. Wind waves 17 ft. Scattered showers.

Its time to DIVE


macado posted:

Thanks. I definitely appreciate the advice. I always run my stuff through v-planner and try to keep several "oh poo poo" dive plans on a slate in my pocket for contingency. At this stage in my deco planning, most of my dives can be deco'd on backgas if I were to lose a deco bottle. I usually dive with double HP100s or LP95s with very generous fills. I agree with you about always having much more gas than needed.

In this dive, If go any deeper than 120ft i'd have to take a shovel and start digging. Most of dive will be ~105-110fsw. Have contingency plan for overstaying by 10 minutes or losing my deco bottle.

At this point, I definitely think I should start carrying two deco bottles for practice.

Only thing I dont like about vplanner is I cant do my full gradient factor I am running 20/85 right now.

But yes vplanner is great, glad you are planning and keeping safe. Shovels are never bad! Let me know how it all goes

jackyl posted:

Also, I may be in Hawaii on a work trip sometime in 2013 and will of course stay longer, with my wife joining me, so I might hit you up for site/shop recommendations if you don't mind. I will buy you dinner or drinks or something in exchange, of course!

Let me know if you are on Maui

Orions Lord
May 21, 2012


Hello peeps,

I am a diver also we do a lot of liveaboards. Usual Egypt north and south route.

We have some really nice vids of the north route.

http://duikenonline.com/blog2012.html

It's in dutch but the videos are just music.

We are going next year to the thistlegorm for the 4th time. It is one of the most impressive wrecks that you can reach without going tek.

http://www.ssthistlegorm.com/

Orions Lord
May 21, 2012


Also I've noticed some tek talk here lol.

I made some tek stuff for you information.

The vd Waals Formula shown graphical
http://www.duikenonline.com/waals/waals.htm

Some presentation about Bulhman in a chart. I was looking for this and couldn't find it so I made it myself.
http://duikenonline.com/Buhlmann02.xls

Blending
http://duikenonline.com/blenden.xls

Gasmanagement
http://www.duikenonline.com/Gasmanagement.htm

I also made the IANTD Adv Nitrox automaticly but that was years ago with only 50% deco gas.
And I can't motivate me anymore to make the other gas deco software anymore.
The first one was about 80 hours of work or more.

Regards,

Roland

pupdive
Jun 13, 2012


macado posted:

59 minute runtime with (O2 and 50%) versus 63 minute runtime with only O2. For extra 4 minutes, seems like not worth it to carry a second bottle.

I find that carrying one bottle easier especially if it is an 80 which just rides better than a 40 for me.


What's your rig for the 'back gas', assuming you are not running SM (sidemount)?

macado
Jun 3, 2003

How to keep an idiot busy, Click here.

pupdive posted:

I find that carrying one bottle easier especially if it is an 80 which just rides better than a 40 for me.


What's your rig for the 'back gas', assuming you are not running SM (sidemount)?

Diving traditional hogarthian rig. Double HP100s or LP95s with HOG 58# wing, SS backplate, basic harness. I use Apeks DS4 for my first stages and combination of HOG 2nd stages and Apeks ATX50s. Nothing too fancy. Apeks DST first stages for my deco bottles.

macado
Jun 3, 2003

How to keep an idiot busy, Click here.

Well..forecast next few days is calling for high winds and 5-8ft seas.

Probably will not make it out to the wreck we wanted but will probably just end up doing some inner harbor wrecks and/or scallop diving. Still fun but I was looking forward to diving a different wreck this weekend.

Anyone have any experience with the DRIS 1000 lumens lights? Everyone that has them seems to think they make great backup lights. At 1000 lumens, they're brighter than some entry level can lights that people use.

http://www.diverightinscuba.com/catalog/lightsrecreationallights-drisdivegear-1000lumendivelight-p-3380.html

They just released a shorty version of this that will fit perfect on my harness
http://www.diverightinscuba.com/catalog/lightsrecreationallights-drisdivegear-1kshortydivelight-p-3586.html

Just ordered one of the original ones and I am going to put it in on a goodman handle and compare it to my buddy's DiveRite 9W LED Can light.

Have a Hollis LED15 can light on order that I can't wait to try out too.

Wish can lights werent so expensive. I get total light envy when I see people with 35W HID lights.

Orions Lord
May 21, 2012


macado posted:

Well..forecast next few days is calling for high winds and 5-8ft seas.

Probably will not make it out to the wreck we wanted but will probably just end up doing some inner harbor wrecks and/or scallop diving. Still fun but I was looking forward to diving a different wreck this weekend.

Anyone have any experience with the DRIS 1000 lumens lights? Everyone that has them seems to think they make great backup lights. At 1000 lumens, they're brighter than some entry level can lights that people use.

http://www.diverightinscuba.com/catalog/lightsrecreationallights-drisdivegear-1000lumendivelight-p-3380.html

They just released a shorty version of this that will fit perfect on my harness
http://www.diverightinscuba.com/catalog/lightsrecreationallights-drisdivegear-1kshortydivelight-p-3586.html

Just ordered one of the original ones and I am going to put it in on a goodman handle and compare it to my buddy's DiveRite 9W LED Can light.

Have a Hollis LED15 can light on order that I can't wait to try out too.

Wish can lights werent so expensive. I get total light envy when I see people with 35W HID lights.

Wow I never saw this light. This is great no cables anymore. And a free hand.
To bad I have to much lights already but maybe next year.

Bangkero
Dec 28, 2005

I baptize thee
not in the name of the father
but in the name of the devil.


macado posted:

Well..forecast next few days is calling for high winds and 5-8ft seas.

Probably will not make it out to the wreck we wanted but will probably just end up doing some inner harbor wrecks and/or scallop diving. Still fun but I was looking forward to diving a different wreck this weekend.

Anyone have any experience with the DRIS 1000 lumens lights? Everyone that has them seems to think they make great backup lights. At 1000 lumens, they're brighter than some entry level can lights that people use.

http://www.diverightinscuba.com/catalog/lightsrecreationallights-drisdivegear-1000lumendivelight-p-3380.html

They just released a shorty version of this that will fit perfect on my harness
http://www.diverightinscuba.com/catalog/lightsrecreationallights-drisdivegear-1kshortydivelight-p-3586.html

Just ordered one of the original ones and I am going to put it in on a goodman handle and compare it to my buddy's DiveRite 9W LED Can light.


hey cool, I also ordered the original DRIS 1000 light for my brother for christmas. He wanted to go with the tovatec first, but I convinced him otherwise after seeing all the raves about the DRIS.

Never noticed the shorty, but that's cool - maybe that would be more suited for a goodman handle?

Depending on how impressed I am, I'll be ordering one for myself too!

macado
Jun 3, 2003

How to keep an idiot busy, Click here.

Bangkero posted:

hey cool, I also ordered the original DRIS 1000 light for my brother for christmas. He wanted to go with the tovatec first, but I convinced him otherwise after seeing all the raves about the DRIS.

Never noticed the shorty, but that's cool - maybe that would be more suited for a goodman handle?

Depending on how impressed I am, I'll be ordering one for myself too!

Shorty just came out last week I think. It is definitely more suited for a goodman handle but it has a shorter run time. I think 2.5 hours (but only about 1.5-2 hours at max strength) from what I read. I'll probably pick a couple of those up and use them as my backup lights once I have some more cash.

There are some reviews of the light on cavediver.net forums. Seems likes a very good light.

I ordered longer one just because I wanted something with a longer runtime. There is a person who is doing a custom goodman handle for this and other handheld lights that I did a pre-purchase for.

http://www.indiegogo.com/gooddris

Trivia
Feb 8, 2006

I'm an obtuse man,
so I'll try to be oblique.


Leaving tomorrow for Singapore and Malaysia. Going to dive Sipadan. Look upon my vacation and despair.



I'll be sure to post pics!

rockcity
Jan 16, 2004


macado posted:

Shorty just came out last week I think. It is definitely more suited for a goodman handle but it has a shorter run time. I think 2.5 hours (but only about 1.5-2 hours at max strength) from what I read. I'll probably pick a couple of those up and use them as my backup lights once I have some more cash.

There are some reviews of the light on cavediver.net forums. Seems likes a very good light.

I ordered longer one just because I wanted something with a longer runtime. There is a person who is doing a custom goodman handle for this and other handheld lights that I did a pre-purchase for.

http://www.indiegogo.com/gooddris

That shorty version looks awesome. I just ordered a few lights to learn how to cavern dive and I'm sort of wishing I knew about that one instead. I'd seen the longer version, but I wanted to go with a wrist strap instead of handle and the other one just looked too long for what I wanted.

IM FROM THE FUTURE
Dec 4, 2006



That light is amazing. I have a pelican light that runs off of some C's and it puts out like 27 lumens. To imagine 1000 lol. Is the beam on that thing concentrated or wide angle? Edit: 11.5% beam, i guess thats somewhere in the middle, not super tight but not wide either.

Went out for a beachdive tuesday before work. Conditions have been mostly crappy but that day they were too nice to pass up. Was with a buddy that shot some go pro so I got some cool shots. Was a beautiful day with nice viz between 30-60 feet. Tuesday nights dinner was also pretty incredible.








IM FROM THE FUTURE fucked around with this message at 19:55 on Dec 21, 2012

macado
Jun 3, 2003

How to keep an idiot busy, Click here.

IM FROM THE FUTURE posted:

That light is amazing. I have a pelican light that runs off of some C's and it puts out like 27 lumens. To imagine 1000 lol. Is the beam on that thing concentrated or wide angle? Edit: 11.5% beam, i guess thats somewhere in the middle, not super tight but not wide either.

Went out for a beachdive tuesday before work. Conditions have been mostly crappy but that day they were too nice to pass up. Was with a buddy that shot some go pro so I got some cool shots. Was a beautiful day with nice viz between 30-60 feet. Tuesday nights dinner was also pretty incredible.


The shorty one has a 9 degree beam. Seems like a great alternative to a can light for poor people like myself.

Nice pictures! Wish I did more spearfishing. Just mostly do lobster hunting and scallop diving up here.

I spear the odd flounder every now and then but those don't typically count since they're dumb enough to swim into a catch bag.

Crunkjuice
Apr 4, 2007

That could've gotten in my eye!
*launches teargas at unarmed protestors*

I THINK OAKLAND PD'S USE OF EXCESSIVE FORCE WAS JUSTIFIED!


Tell me about lobster diving guys. I've got relatives near Boston and I'm thinking of trying to go lobster diving up there this summer. I know nothing of it, or the legalities.

macado
Jun 3, 2003

How to keep an idiot busy, Click here.

Crunkjuice posted:

Tell me about lobster diving guys. I've got relatives near Boston and I'm thinking of trying to go lobster diving up there this summer. I know nothing of it, or the legalities.

Can be fun though you must be a Massachusetts resident and have a permit (it's like 45 bucks for the year). If you're not a resident, you could technically tag along with someone who has a lobster license. As long as that person comes out of the water with the lobsters it should be ok. Technically not legal but people do it all the time. Occasionally on boats or shore dives environmental police will check to make sure you have a proper license didn't take any shorts.

Even if you don't catch them they can be fun to play around with.

Lobsters have to be a certain size. There is a minimum and maximum. 15 lobsters a day limit (hard to get but it is possible if you know good spots). You gauge them underwater and also make sure that if it's a female that it doesn't have a tail full of eggs. (You can still take females, they just can't a eggs or a v-notch in their tail)

It's fun wrestling some of the monsters. 10-15lb+ losters look like small dogs and have huge claws. These guys are well oversize and can't be taken. (Unless you're off Cape Cod which has no size restrictions)

You do have to be quick because if they grab onto your finger, it WILL hurt. A few different techniques to use, some people use a tickle stick, basically a small pole that you get behind the lobster and tap them from behind. They sense the movement and think something is behind them and will shoot out from under the rocks or wherever they're hiding if you do it right.

Usually I just go in for the kill with my hands and hope for the best. As long as you can see where their claws are, you can grab them behind the head. Their claws don't extend that far. Trick is not to hesitant and just go as soon as you can see them.

The thing that can be frustrating about lobster diving is if you're new or it's the beginning of the season, a lot of times people spend a lot of time trying to wrestle small ones out of their holes only to realize they're too small. (You know the deal, things look bigger underwater). After a while you can usually look at the claws and get a good idea of it's size. I tend to know go after the smaller ones anymore.

SlicerDicer
Oct 31, 2010

PAILOLO CHANNEL

East gales to 35 kt. Wind waves 17 ft. Scattered showers.

Its time to DIVE


IM FROM THE FUTURE posted:

That light is amazing. I have a pelican light that runs off of some C's and it puts out like 27 lumens. To imagine 1000 lol. Is the beam on that thing concentrated or wide angle? Edit: 11.5% beam, i guess thats somewhere in the middle, not super tight but not wide either.



12000 combined lumens, Keldan Luna 8

Note: These are my new video lights

let it mellow
Jun 1, 2000



Dinosaur Gum

SlicerDicer posted:



12000 combined lumens, Keldan Luna 8

Note: These are my new video lights
Holy poo poo.

SlicerDicer
Oct 31, 2010

PAILOLO CHANNEL

East gales to 35 kt. Wind waves 17 ft. Scattered showers.

Its time to DIVE


jackyl posted:

Holy poo poo.

I think they should do the trick nicely.. I figure since I am going to be shooting video with a Red starting next year I may as well have some decent light? I am sure I am going to get some spectacular footage with it

macado
Jun 3, 2003

How to keep an idiot busy, Click here.

Jesus..those things would light up caves nicely for video.

Mr.AARP
Apr 20, 2010

I was born after Kurt Cobain died. Now you feel old.



Very pleased that I was able to score a Suunto Vyper for $125 on scubaboard. Hooray for not getting DCS from looking at the wrong square on my dive tables! Now if only Suunto didn't charge $75 for the USB cable...

Tomberforce
May 30, 2006


Mr.AARP posted:

Very pleased that I was able to score a Suunto Vyper for $125 on scubaboard. Hooray for not getting DCS from looking at the wrong square on my dive tables! Now if only Suunto didn't charge $75 for the USB cable...

I paid $120 yesterday for a Mares Drak usb cable. I feel violated.

In other news, I booked flights to Hawaii. I get into Honolulu on the 29th March and leave on the 10th April. I want to hike Mauna Kea and spent a considerable time underwater - any suggestions for good dive sites and the best/cheapest way to travel in between the islands? I assume there's a ferry?

macado
Jun 3, 2003

How to keep an idiot busy, Click here.

Yikes.. It was like a braille dive today. No ambient light at all past 30-40ft. Glad I brought a good light.

Wind from Friday and Saturday kicked up all the poo poo. I knew it was going to be bad when people who normally do very well catch wise were coming up after 10-15 minutes saying it wasn't worth it.

Still managed to get a full bag of scallops but 41F degrees is pushing the limits of my current undergarments.

SlicerDicer
Oct 31, 2010

PAILOLO CHANNEL

East gales to 35 kt. Wind waves 17 ft. Scattered showers.

Its time to DIVE


macado posted:

Yikes.. It was like a braille dive today. No ambient light at all past 30-40ft. Glad I brought a good light.

Wind from Friday and Saturday kicked up all the poo poo. I knew it was going to be bad when people who normally do very well catch wise were coming up after 10-15 minutes saying it wasn't worth it.

Still managed to get a full bag of scallops but 41F degrees is pushing the limits of my current undergarments.

God no thanks...

macado
Jun 3, 2003

How to keep an idiot busy, Click here.

SlicerDicer posted:

God no thanks...

New England winter diving! Only the diehards go out in this weather :-) Air temperature 36f, water temp 41f. We actually had a full boat but it was like Murphy's Law today. Everyone that usually does really well had issues.

One regulator freeflow which forced someone to end dive, two drysuit floods, and another person couldn't equalize at all.

We are usually blessed with some decent visibility in the winter up here (30-50ft is good in winter here) but the last storm kicked up all sorts of poo poo. I was just glad to have got out today. We bagged the charter on Saturday because of 8ft seas. I would not want to be braille diving at 120ft so I'm sort of glad.

Snowdens Secret
Dec 29, 2008
Someone got you a obnoxiously racist av.


Mr.AARP posted:

Very pleased that I was able to score a Suunto Vyper for $125 on scubaboard. Hooray for not getting DCS from looking at the wrong square on my dive tables! Now if only Suunto didn't charge $75 for the USB cable...

There are cheaper ones on ebay. There's also some plans for making your own if you Google around.

Considering the deal I got on my Leonardo the Cressi PC interface is almost the cost of the whole drat computer.

speshl guy
Dec 11, 2012


In regards to free diving:

I watched the video of Will Trubridge doing his 101 meter constant weight/unassisted world record 4 min+ dive and was truly inspired. I myself am a swimmer in college and can hold my breath for 75 yards (3 laps) underwater, but I've never trained for any kind of depth over 20 yards.

What are my options as for training / signing up for competitions such as this? I am extremely interested and believe I can compete at this level given the right training.

EDIT: 75 yards underwater dolphin kicking at a constant depth of about 1 meter, meaning I never reach neutral buoyancy. Static I can hold my breath for 4+ min so given the right training I really think I could compete with the best. Thanks for any feedback.

speshl guy fucked around with this message at 08:35 on Dec 24, 2012

Orions Lord
May 21, 2012


SlicerDicer posted:



12000 combined lumens, Keldan Luna 8

Note: These are my new video lights

I did a night dive in the red sea from a liveaboard.

I actual switched OFF my lights for some time. Now a days the whole reef is lightened up.

And you think there is a nuclear submarine approaching you but it is a dive with 2 lights for his video camera.

SlicerDicer
Oct 31, 2010

PAILOLO CHANNEL

East gales to 35 kt. Wind waves 17 ft. Scattered showers.

Its time to DIVE


Orions Lord posted:

I did a night dive in the red sea from a liveaboard.

I actual switched OFF my lights for some time. Now a days the whole reef is lightened up.

And you think there is a nuclear submarine approaching you but it is a dive with 2 lights for his video camera.

Actually these lights are for daytime.. Plenty of night dives I have done out here where I just shut everything down people think I am crazy! I will swim off in the bioluminescence.

These are for daytime when you go down 90+ft the light is so dim and the color spectrum so toasted you cant pull color if you tried. So you got to get ridiculous lights to make it work. This is a image of my buddy filming a Eel I turned off my strobes for the still let natural ambient light fill in, check how washed out everything is on his wetsuit and reef there is zero color. The actual area of light is very small from these lights. It will go about 5ft at best..



Note: To run at 120+ FPS underwater at that depth you need a truckload of light due to shutter speed to capture 120 frames in a second.

SlicerDicer fucked around with this message at 18:47 on Dec 24, 2012

IM FROM THE FUTURE
Dec 4, 2006



SlicerDicer posted:

Actually these lights are for daytime.. Plenty of night dives I have done out here where I just shut everything down people think I am crazy! I will swim off in the bioluminescence.

These are for daytime when you go down 90+ft the light is so dim and the color spectrum so toasted you cant pull color if you tried. So you got to get ridiculous lights to make it work. This is a image of my buddy filming a Eel I turned off my strobes for the still let natural ambient light fill in, check how washed out everything is on his wetsuit and reef there is zero color. The actual area of light is very small from these lights. It will go about 5ft at best..



Note: To run at 120+ FPS underwater at that depth you need a truckload of light due to shutter speed to capture 120 frames in a second.

That is a great picture to show how blue shift and underwater filming works. Are you filming with the Red for a special reason or just to step up your work?

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SlicerDicer
Oct 31, 2010

PAILOLO CHANNEL

East gales to 35 kt. Wind waves 17 ft. Scattered showers.

Its time to DIVE


IM FROM THE FUTURE posted:

That is a great picture to show how blue shift and underwater filming works. Are you filming with the Red for a special reason or just to step up your work?

Well thats my buddy he shoots a XR520 Sony, he has the Fathom Flat Port thus his reason for not upgrading.

And yes the color is just DRAMATIC in this shot, I am filming with RED as I want to step up the quality and show whats really out there.

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