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Bali - close-ups

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Bali - close-ups

Postby gooseberry on Thu Sep 18, 2008 2:48 am

Take me to your leader
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Stop following me
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Ornate ghost pipefish
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Anenome crab
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Re: Bali - close-ups

Postby Bindii on Thu Sep 18, 2008 9:02 am

I've never tried underwater togging and I expect that its harder than it appears... these are fab the crab one really grabs me.. fantastic! :)
The last thing I want to do is hurt you... but it's still on the list... ;)
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Re: Bali - close-ups

Postby dviv on Thu Sep 18, 2008 10:07 am

The Mantis Shrimp shot is Awsome! - How close were you?

I ask because after being on the end of a spearing from one of them I can tell you - it hurts!
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Re: Bali - close-ups

Postby Glen on Thu Sep 18, 2008 10:18 am

Impressive work. What equipment were you using?
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Re: Bali - close-ups

Postby gooseberry on Thu Sep 18, 2008 11:19 am

Bindii wrote:I've never tried underwater togging and I expect that its harder than it appears... these are fab the crab one really grabs me.. fantastic! :)


Thanks Sue. Yeah, when I first started taking it up (underwater togging) I thought it'd be an easy transition from land based, but boy was I wrong.... :)
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Re: Bali - close-ups

Postby gooseberry on Thu Sep 18, 2008 11:25 am

dviv wrote:The Mantis Shrimp shot is Awsome! - How close were you?

I ask because after being on the end of a spearing from one of them I can tell you - it hurts!


Thanks dviv. Ouch - yeah, I've heard about what they can do with their strong claws - I was maybe about 15-20 cm away from it when I took the shot.
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Re: Bali - close-ups

Postby gooseberry on Thu Sep 18, 2008 11:30 am

Glen wrote:Impressive work. What equipment were you using?


Thanks Glen. Using a sea&Sea DX-1G compact (basically a rebadged Ricoh GX-100) and housing with an Inon Z-240 strobe.
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Re: Bali - close-ups

Postby dviv on Thu Sep 18, 2008 11:46 am

gooseberry wrote:Thanks dviv. Ouch - yeah, I've heard about what they can do with their strong claws - I was maybe about 15-20 cm away from it when I took the shot.


They are incredible creatures - they have one of the most complex eye's in nature and their claw strikes are the fastest recorded movement in an animal.

Have a look at http://en.wikipedia.org/wiki/Mantis_shrimp

The "punch" delivered has roughly the acceleration of a .22 caliber pistol


Both types strike by rapidly unfolding and swinging their raptorial claws at the prey, and are capable of inflicting serious damage on victims significantly greater in size than themselves.

In smashers, these two weapons are employed with blinding quickness, with an acceleration of 10,400 g and speeds of 23 m/s from a standing start, about the acceleration of a .22 caliber bullet.

Because they strike so rapidly, they generate cavitation bubbles between the appendage and the striking surface. The collapse of these cavitation bubbles produces measurable forces on their prey in addition to the instantaneous forces of 1,500 N that are caused by the impact of the appendage against the striking surface, which means that the prey is hit twice by a single strike; first by the claw and then by the collapsing cavitation bubbles that immediately follow. Even if the initial strike misses the prey, the resulting shock wave can be enough to kill or stun the prey.
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Re: Bali - close-ups

Postby ja_S_on on Thu Sep 18, 2008 1:52 pm

number 1 is absolutely stunning, brilliant colours!
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Re: Bali - close-ups

Postby gooseberry on Fri Sep 19, 2008 12:52 am

dviv wrote:They are incredible creatures - they have one of the most complex eye's in nature and their claw strikes are the fastest recorded movement in an animal.

Have a look at http://en.wikipedia.org/wiki/Mantis_shrimp


Yeah, amazing stuff.
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Re: Bali - close-ups

Postby gooseberry on Fri Sep 19, 2008 12:54 am

ja_S_on wrote:number 1 is absolutely stunning, brilliant colours!


Thanks Jason. Yeah, the colours of the different underwater creatures make for excellent photographic subjects.
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