Here in the Arctic I can hunt at night--as long as no artificial light, NV, or Thermal isn't used--so in falltime, especially in late August early September it's still light enough to hunt up to 10 and sometimes 11 at night. However, thats twilight and if its raining, cloudy, or snowing visability is cut considerably. On the trapline in winter there are three or four days in December that the sun doesn't rise at all, but dusk and dawn here is the longest in the world, but again it's "compromised light" hence if possible I'd get the 56mm OBJs. Right now there's only the 8x56 3200.com and the last I knew there's no plan to offer the 10x56. The former has the largest exit pupil the human eye can use--7--as does a 6x42 scope, 9x63, etc. So I'm wondering if the 10x42--given its great bright Leica glass--would suffice or should I go with the 8x56...