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Northeastwrecks:Visual confirmation that I've remembered to connect the battery connectors?
Before this gets too far out of control, I'm not trying to suggest that there is anything wrong with Terkels. If the people who use them find them reliable, and they are pleased with the performance, then I'm not going to criticize their decision.
However, I'm curious. There was a statement earlier in the thread that you can't adjust the beam below 20 feet or you risk damaging the threads.
I've needed to adjust my light beam much deeper than 20 feet. So I'm curious whether this is actually an issue and, if it is, how you handle the problem. In other words, is this really an issue or not?
For me ... no. As a matter of practice, I set my beam to the tightest possible spot and leave it there (regardless of which light I'm diving). The water here is typically rather turbid, and the tightest beam is the one that is almost always most desirable as it minimizes the amount of backscatter you'll have to deal with ... and produces the beam with the farthest possible range.
In point of fact, I find the Halcyon (and Salvo) solution to be less useful simply because the way the light is built, you want to loosen the screw for storage (or risk loosening the o-ring that seals your ballast to the light head), and so you have to remember to adjust the light beam on every dive. That's a minor thing, but something I don't have to do with my Terkel.
... Bob (Grateful Diver)