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Subject:RE>>lights in low vis

George wrote

> THe tow keys are focus and the potion of the light raltive 
>to you. If you hold it furhter in front the backscatter 
>seems less. The problem with non-adjustaable beams is that 
>they do not penetrate and are useless for signalling. 

I have to (as usual) agree with George - we use the AUL lights with the goodman
handle for a lot of our diving in the UK, where vis is somewhere between 0 and
10m, with a lot of sedimentation in the water - the focus, colour, beam etc all
work real well - we don't notice a backscatter problem at all

GD


                      Mail Address : graeme_davison@ne*.co*...
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