Does anyone have trouble with their objective lens fogging on cold mornings? When I say cold, a cold morning here is usually around 28-30 degrees. I have had a few times this has happened before. I recently bought a scope with a 56mm objective lens. I hunted with it two mornings this week and it developed a hazy fog both mornings. This fog occurs on the outside. I've had it happen that there may be a little in the center of the lens but never the whole lens.