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#1 paulandersonphoto

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Posted 20 September 2018 - 07:43 PM

Hi everyone I've been shooting landscape and wildlife for years and looking to get my first underwater system. I'm looking to purchase a sony a7ii and a wide angel lens. With this I'd like two get a two strobe setup been reading and trying to decide on which strobes to go with, but my question is what I should be looking for with strobe arms and mounts? Not sure which brand? Type? Length? Any advice would be appreciated.

Thanks
Paul

#2 TimG

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Posted 20 September 2018 - 09:21 PM

Hey Paul

This often comes up and it'd be worth doing a search of the Wetpixel forums.

I think you'll find the general view is that you might as well buy arms and clamps once - and buy well. They are one of the few bits of kit that can move relatively seamlessly from system to system.

As an example, Ive had my ULCS arms, clamps and bits and bobs since around 1998 and they're still in perfect condition after many hundreds of dives. And they've moved across 6 housings in that time. You'll find many people on WP saying a similar thing.

Get a quality brand and you should be good for many years and maybe even get some return if/when you finally sell.

On arm sizes, an 8" plus a 5" arm for each strobe is a fairly popular combination. This gives flexibility in terms of strobe positioning and is good for macro, WA and CFWA.

You then need clamps to join the arms; to join the arms to the strobes; and the arms to the housing. So 3 clamps for each strobe. Then add a fitting to the strobe itself to take the clamp; and a fitting on the housing.

Hope this helps for starters.


Tim
(PADI IDC Staff Instructor and former Dive Manager, KBR Lembeh Straits)
Nikon D500, Nikkors 105mm and 8-15mm, Tokina 10-17mm,  Subal housing

http://www.timsimages.uk
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#3 Tom_Kline

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Posted 20 September 2018 - 09:33 PM

Here is a good beginner tutorial:

https://reefphoto.co...-arms-do-i-need


Thomas C. Kline, Jr., Ph. D.
Oceanography & Limnology
Currently used housed digital cameras: Canon EOS-1Ds MkIII, EOS-1D MkIV, and EOS-1DX; and Nikon D3X. More or less retired: Canon EOS-1Ds MkII; and Nikon D1X, D2X, and D2H.

Lens focal lengths ranging from 8 to 200mm for UW use. Seacam housings and remote control gear. Seacam 60D, 150D, and 250D, Sea&Sea YS250, and Inon Z220 strobes.

http://www.salmonography.com/

 


#4 Vondo

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Posted 21 September 2018 - 05:13 AM

The only issue I'd take with that tutorial is that one arm setups can work pretty well in some cases. I use a single 5" arm on each side for macro work. Considering that my strobes are attached to a ball with another very short arm, I get enough flexibility.



#5 Weiry

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Posted 23 November 2018 - 08:21 PM

Paul I use the nauticam strobe arms they are great