How cold? For down to perhaps freezing I'll recommend fingertipless mountain biking gloves; for colder conditions, fingertipless wind-blocking fleece gloves that fit snugly and have grippy palm material. I recently got a pair like that by Patagonia that work very well. There are others, but many have slick material on the palms that wouldn't grip the camera as well.
I've not found I can operate camera controls, especially wheels and small buttons, in gloves that include fingertips. I also have a kind of goofy pair of windproof mitten-gloves by OR. The mitten part folds back to reveal fingerless gloves inside. The fit isn't as good as pure gloves, though.