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Land based flash underwater?


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#1 johnohuk

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Posted 13 July 2014 - 01:34 AM

Hello All,

I'm toying with the idea of converting an above water flash gun for diving? Can anyone think of any reasons why this is not a good idea ? Apart from the obvious !

My candidate is a Yongnuo 560 or 460 which I would use in manual mode, waterproof with an acrylic tube, a dome if my engineering skills can stretch to it and custom electronics to expose the manual power controls to a waterproof interface. As I only use my Canon S95 with a flash in manual mode I think it will work....There are a few examples out there for me to build on but i'm sure this has been thought about before...?

 

Thanks in advance!

 

John

 

BTW I'm doing it for the challenge as well as replacing my recently flooded strobe!



#2 gsk3

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Posted 13 July 2014 - 05:20 AM

I've often wondered why we house cameras but not strobes.  Will be interesting to see where this goes.

 

Maybe think about a fiber port leading to the strobe's optical slave?


Edited by gsk3, 13 July 2014 - 05:21 AM.


#3 kc_moses

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Posted 13 July 2014 - 06:02 AM

The reason why no one house a land strobe is because of heat issue. Without water surround the strobe to disperse heat, your strobe will burn out very quickly, or fog up the housing. We all know that air is a bad heat conductor, so, save the headache. But if you can get it work, good for you and you could make a million and file the pattern!



#4 frogfone

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Posted 13 July 2014 - 09:56 AM

Roddy used to have a 10bar housing for his canon speedlite 580ex.  It was amazing for macro and eTTL but didn't cut the mustard with WA.  It did flood in the end but it was only a small leak which only fried the batteries.  He sold it with the 10bar housing to a surf photographer as he didn't need it to be submersible, only splash proof. 

 

Sharon



#5 Julian D

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Posted 13 July 2014 - 04:41 PM

Not sure if this helps or not but there's a Subal flash housing for an SB800 on e-bay at the moment (nothing to do with me). Cheers



#6 johnohuk

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Posted 14 July 2014 - 05:39 AM

Thanks for that... A bit expensive but proves it can be done... as does this ...

 

http://forum-photosu...opic.php?t=1317

 

http://forum-photosu...ighlight=#14339



#7 Alex_Mustard

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Posted 14 July 2014 - 07:50 AM

Main limitation for underwater use is lack of coverage for wide angle, the bulk of the strobe housings, which limit strobe positioning, cold colour temp of the strobes, and expense/complexity of housings to give access to all the buttons/controls on the flash. 

 

That said, I use a housed land flash from time to time. I have an old Subal housing, that was originally bought for an SB-26, I think. But has been used down the years with that flash and then more modern flashes, such as SB-28DX, SB-600 and now SB-700.

 

This picture was taken with a housed land flash - to enable me to have the fast flash synch to be able to shoot with an open aperture into the sun: 

http://www.naturepho...?showimage=1106

 

I actually did some shots this year at 1/8000th. 

 

Alex


Alexander Mustard - www.amustard.com - www.magic-filters.com
Nikon D4 (Subal housing). Nikon D7100 (Subal housing). Olympus EPL-5 (Nauticam housing).


#8 johnohuk

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Posted 14 July 2014 - 11:27 AM

That's a beautiful picture! Love the background... 

 

Thanks Alex for the feedback, i'd forgotten about the size/bulk issue.