My son's Varsity football made it to the playoffs---first time in years, so this is a big deal for the team. I have been getting a lot of great nightime game shots with my Pentax k100d Super, but now it has gotten really cold here. For our next playoff game it is supposed to be a high of 32 in the day and 15 in the evening. Kickoff is at 7:30 and will probably be around 25 degrees by then. I will be bringing a lightweight duffle bag to carry all the extra hats, scarves, gloves and I will place the camera in that bag to avoid carrying a pocketbook and camera bag. If I keep it in the bag until the game starts and bring it out to use it when I need to, will it be okay at the game for 3-4 hours? I will leave it in the bag and bring the bag in the house when we get home to get it slowly acclimated to the warmer temps of the house. It fhas resh batteries in it but I have an extra set to bring. Thanks for any advice!