While not the lightest, this tripod has served me well in the mountains chasing sheep, as well as in the fields smacking steel. It's a bit heavier, but also a lot sturdier than the Sprint Pro, which makes a big difference with a heavy optic, or when the wind is blowing.

http://www.bhphotovideo.com/c/product/1014333-REG/slik_613_337_pro_340dx_tripod_legs.html