Canon EOS300D

Veggie Dave scribbled on the back of a napkin:

Not to mention that getting really good B&W shots also means you'll
spent a long time in darkened rooms, and I'm not talking about the back
room of the local here.

 

In my experience many "professionals" have already made the change.

Film will soon any be an "enthusiasts" format.

 

For sheer effort
http://www.deepimage.co.uk/photography/dancing_withlight-article/dancing_withlight.htm

 

Those are fucking superb!

--
Veggie Dave
UKRMHRC#2 BOTAFOF#08
IQ 18 FILMS http://www.iq18films.com
Extreme Racing http://www.veggie-dave.co.uk
Toxic Shock Syndrome Gets More Girls Than Me

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Veggie Dave

Aren't they?

http://www.deepimage.co.uk/photography/dancing_withlight-article/empire_t
ank1.htm

got me particularly.

230 feet's fucking deep for SCUBA though, isn't it?

Boots? Bonwick?

--
Wicked Uncle Nigel - Manufacturer of the "Champion-105" range of rearsets

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
ZZR1100, Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, mups

Ah. I had in mind a figure of 30 metres before it all got "difficult".
But I can't remember where I got that from.

--
Wicked Uncle Nigel - Manufacturer of the "Champion-105" range of rearsets

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
ZZR1100, Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"

 

Wicked Uncle Nigel says...

70 Meters, deep but certainly doable using air, be a bit boring on the
way up though.

 

Wicked Uncle Nigel says...

Its years since I did any serious diving but IIRC 30 meters was the PADI
max BSAC had a max of 50 meters but 70 meters is possible before the
oxygen levels or the nitrogen narcoses get to you.

 

Quick conversion gives 70 metres[1], so beyond recreational limits but
not uncommon. He's using a CCR which helps in some ways like gas usage
and reduction in deco. Probably one of these
http://www.ambientpressurediving.com/insp.htm unfortunately I am not
sure if I can persuade the finance committee I should have one

[1] Despite thinking still in miles/feet/inches normally I really can't
get my head round it for Scuba.

 

Not really sure I'd go for 70m on air, you're PPO2 is up to 1.7 by then
and I am pretty sure narcosis will be biting hard. I dived to 50m late
last year on a 22% mix, so almost air and suffered fairly severe
narcosis[1]. If you notice it, then you know you're affected.

[1] To the point where I really couldn't remember how to take a simple
compass bearing.

 

Not really sure I'd go for 70m on air, you're PPO2 is up to 1.7 by then
and I am pretty sure narcosis will be biting hard. I dived to 50m late
last year on a 22% mix, so almost air and suffered fairly severe
narcosis[1]. If you notice it, then you know you're affected.

[1] To the point where I really couldn't remember how to take a simple
compass bearing.

 

The narcosis will hit most people way before then. Plus after any time at
70m there are considerable decompression stops to perform. Trimix would
be the best weapon for the job, but it's still a serious depth.

 

Boots Blakeley says...

Close to the limit I agree, dunno if its still the same but 1.8 PP02 was
reckoned to be the limit when I was doing this sort of stuff. Narcosis I
find is a bit like beer the more you do it the more you take before it
effects you.

I did a 60m bounce dive in Dorothea years ago on air, didn't feel to bad
but I wasn't down long enough for the full effects and I didn't have to
do anything complicated like look at a gauge.

Heh, as long as you can remember which was is up...

 

The guy that taught me, in Baltimore, Ireland. Was a very experienced diver
who used to do contract work for the Norwegian navy up in the arctic circle.
On occasion when looking for a wreck, he'd 'touch bottom' going as deep as
80-90 meters on air alone. His buddy would wait at 50m with spare air, for
decompression, ready for him if he got delayed for any length of time.

It was usally a bit tense on the boat when we were waiting for him to
return.

--
Alex
BMW R1150GS
DIAABTCOD#3 MSWF#4 UKRMFBC#6 Ibw#35 BOB#8
http://www.team-ukrm.co.uk
Windy's "little soldier"

 

AFAIK all agencies are saying 1.4 if you're working and 1.6 for deco.
I've heard commercial and military will push the PPO2 as far as 2.0
for deco but they'll be wearing full face masks, so the risk
associated with an O2 hit is lower. I'll go/have gone to 1.6 briefly
and 1.5 for a while at depth between 40m & 45m for a couple of minutes
using a 29% mix.

I was at 50m for about 15 minutes, I suppose it took about 2 or 3
before I realised how wasted I was. Anecdotal evidence suggests that
people get used to narcosis and subjectively believe they're
performance is ok. However, lots of ability tests have been done with
chamber dives that tend to disprove that.

Up I could manage ;-)