Just tested mine this evening in high teen temperatures.....................the sight picture is phenomenal. Will try it on the porks later on this week. For the ten minute play that we had, it is as good as some of the high end Gen 2 kit that I have. Eye relief is not an issue as the torch sits atop the scope. The question, is does the green light spook the beasts. If not, will it stand up to sub zero temperatures as it states on the tin? To be continued.....