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. 

 The higher color temperature 50 watt bulbs seem best - the 
shape of the fifty with the standard reflector gives a 
sharper beam than the 100 watt of the same type. We use all 
50's. The lower current of the fifty means less heat in the 
wires and less deterioration of the swithces and 
connections, especially if it were to leak a little.

 We think this way due to extreme fear and loathing - my 
biggest fear in cave diving or wreck diving is not being 
able to make the dive, that is hy I stay away from shit 
equipment.  

On Tue, 25 Mar 1997, Kevin Connell <kevin@nw*.co*> wrote:
>
>For those of you not diving in 300' vis, like me, I'm 
looking at getting a
>"real" primary light, probably the AUL 14.  I admittedly 
haven't used a
>light bigger than 15W...
>
> My question is, does the back scatter from, say, 15-20' 
vis become really
>bad with a 50W light, and if so, is it better to go with a 
lower wattage
>bulb?  If not, is the AUL 14 "focusable" enough to cut 
through bad vis
>rather than create a white wall of light?
>
>Thanks in advance.
>
>
>
>
>
>
>-----------------------------------------------------------
---------------
>Kevin Connell <kevin@nw*.co*>
>
>Northwest Labor Systems
>http://www.nwls.com
>Bellingham, WA
>-----------------------------------------------------------
----------------
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