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SteveB

Member Since 18 Sep 2008
Offline Last Active Apr 20 2013 05:51 PM

Topics I've Started

Buoyancy to aim for

05 October 2012 - 04:12 PM

What is a comfortable amount of buoyancy to aim for ?
I have a 50D in Ikelite housing and two DS125's. With an 8" dome, it weighs 1.7kg (3lb 11oz) in water.
I can't say that I've found the weight to bothersome in the half dozen dives I've done with it, but we've got a couple of weeks of diving (GBR & Truk) coming up, so that may change my mind. I need to add some length to my arms, so I may as well add some buoyancy. I assume that's a good plan. Is it ?

Since overall weight is also an issue with traveling, I do have a couple of DS51's which would also make the rig much lighter in the water. How significant are the differences between the DS51 and DS125 in clear water situations ? Would it be a crime to leave them at home and use the 51's ?

Steve.

Dual strobe ratios

27 September 2012 - 10:06 PM

Being a beginner, I suspect that I may be barking up the wrong tree, but I'll ask anyway.
I have a 50D in Ike housing and two DS-125's. The manual says to put the strobes on TTL and then select between manual and TTL on the housing and adjust the power there as well. Fair enough. That seems the most versatile option.

Assuming fully manual operation, can I get one strobe to fire at half or quarter power of the other ? If I put one strobe on full power (at the strobe) and the other on 1/2, will they maintain that ratio if I set the power on the housing to say -1 (giving me one at 1/2 and one at 1/4) ?
Does it work that way ? If so, does it matter which strobe has which power ?

I appreciate that I can put the strobes at different distances and/or have one without a diffuser. I'm just trying to get a feel for what options I have available.

Thanks,

Steve.