Any good winter leather glove , then use it everyday until the finger tip softens up.The hand will still get cold ,there is no getting around that .Grey Cup is in Wpg in 2015 , start the softening now.There is also QB like muff that you can wear , it will keep your hands warn , hold Hot Shots and extra batteries .Still like to keep spare batteries in a warm inside chest pocket . If you are coming ,have snow pants with a chest high bib and zipper front since your jacket will likely be open struggling with batteries and flash ,and maybe keep a camera body warm .
A thin leather glove with a built in second inside knit glove is also very warm and good for operating a camera , these gloves are usually $20