"Look at a cliff face above a hiking trail. Your headlamp illuminates the rock with a 300+ lumen beam. Now, glance at your map; notice as the headlamp beam instantly tones down to adjust for a close view. That is the reality of the NAO from Petzl, a self-adjusting light that uses optical sensors and a tiny computer processor built-in to assess what you’re looking at, how far away it is, and then to change its output accordingly from 8 lumens to 355 lumens in a literal blink."
The price is steep but I'm terribly interested in trying one out. Guess I know what I'll be looking for when I head down to Midwest Mountaineering's Spring Expo.
Oh great... here I am thinking my kit is right where I want it and I follow your link and see the swiss cheese coat. That thing better be heavy or I'm in trouble.