I have noticed some binocular specs give an operating temperature, and I'm hoping Canadians who naturally know more about cold conditions would share any cold related issues regarding their optics?
I have hunted whitetails in Alberta and Saskatchewan for a total of six trips, but only once was it extremely cold -20f to -25f in 2013. This was the only time I noticed anything unusual, the power selection ring on my Zeiss Conquest rifle scope was really hard to twist.
What if any preferences do you have for cold weather optics?
Thanks in advance
