Got a chance to do some elk hunting last week. No elk but lots of fresh tracks, they just slipped by in the night, so close. But....all 3 of us had our binos fog up while glassing. The temps were from 5-15 degrees. Once you take them away from your face for a bit they would clear up. More eye relief helps but then it's hard to see. First time for me in that cold of temps while our bodies were warm from walking. Any suggestions ?