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LeDouxDiving

Using 1 light???

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Anybody have any good suggestions for using 1 light for a nauticam housing with gh5 and a wide angle lense (8-18mm)?
Yes buy another light

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Do you mean light i.e. video light or strobe. If you look at Richard Salas's stuff, much of it is shot with a single strobe. If for video, then buy another light seems like good advice.

Bill

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I was thinking video light not a strobe. Just a little light to bring out the colors. Nothing to intense because I realize that with only one light the particulates will show up. I know the correct way is to have to lights angled in but trying to keep the rig more compact. Thanks for your input. 

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One light is not a solution with a wide lens it may work at close range when the field of view of the lens is much smaller than the light apex beam
If you use a single light at wide angle with a light that has a small apex you will just generate a hotspot that will make the exposure hard and also compromise the white balance
The 8-18 has around 95 degree horizontal field of view so you would need a light with sufficient power at 120 degrees to try with a single one and even so the frame will not be evenly covered
When you zoom to 18mm you have a chance but there will be hard shadows on the other side of the frame



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If one of my strobes isn't functional I've used one light positioned up and center, just above the camera. You can have more shadows but it will bring out the color. 

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I recently went on a two week dive photography trip and found one of my strobes was broken on the 2nd or 3rd day.   Learned to shoot with a single strobe after that.   First suggestion, for the most part you'll have an easier time if the strobe is a lot closer to the dome than hung out to the sides in a typical 2-strobe setup.

Second suggestion is that light aiming becomes a lot more critical.  If your strobe has a modeling light, it may be a good time to put it to use.

Third, if you use a diffuser to get around the critical strobe aiming a bit,  you lose light power, and you're starting off with half the power you 'need', so ... be aware of the trade.

With one strobe you can get very dramatic highly direction and contrasty lighting.   You might try making use of it as opposed to trying to cover that up.

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