Hi all,
A lot of us, myself included, have had an problem with having enough light for the autofocus mechanisms of our "consumer" digicams to focus quickly and accurately, of course especally at night
. I think I've found a great solution!
In the past I used an Ikelite PCa as a spotting light, but in certain cases this generated a "hot spot" visible in the final picture. I was on the verge of buying a really expensive purpose made spotting light, when I came across a review of a torch made by a very small Dutch outfit called Gilan. The torch is the Gilan Pocket. Here's a review http://www.divernet.com/equipment/lamps2003/lampsintro.shtml
So I went and bought one! When used together with their optional wide angle diffuser, you get a (not too bright, but bright enough) 100 degree beam with zero hot spot. The torch uses 8 x AA batteries, so that's an additional bonus. It looks great, is superbly made, has double O rings and rated to 80 metres. On the downside it is a bit large, especially relative to my Aquatica 5000 housing, but works fine for me.
I have not tried it out during a night dive yet, which is when any hot spots are likely to show up, but will let you know my experiences.
Total cost is MUCH LESS than a purpose made spotting light, and Steven is a real pleasure to do business with!
I'll post a photo of my rig as soon as I get a moment.
John