Which thermals have been best for you in bad conditions....humidity, warmer temps, drizzle, etc?
i've only used a few thermals but none that i've seen work well in high humidity or drizzle. moisture isn't a good conductor of heat. i don't really know but i'd guess that a larger obj dia might allow for more thermal waves to enter, like light and a large obj lens. of course other factors must certainly play a role, like magnification and quality of glass??
here is an old vid from when it was raining. visibility was so bad i literally walked right up to the hay bales these hogs were destroying. when there's that much water in the air you can't tell the ground from the sky.
