This year, I have been able to get out and do a fair amount of cold-weather shooting. I have been getting some excellent opportunities for interesting shots...except that my *second* Canon F-1N just developed a slow mirror problem. I just sent an F-1N out for repair (quite costly and extensive) for the mirror staying up too long, and, today, a second F-1N is beginning to exhibit the same problem. I am very frustrated and disappointed (as you may imagine). I had some "once in a lifetime" shots today of the historic snowstorm, and the last several are sure to be overexposed. Anyway, what is going on here? I thought the F-1N was supposed to be a great camera for cold weather shooting? In most cases, I have been shooting for 45 minutes to an hour in temperatures in the 15-30-degree (F) range. I usually do not go out more than twice in a day. In my view, a better camera should be able to handle this. Again, this is very disappointing. PS: I have an Olympus OM-2N on the way. How do these cameras fare in colder weather? After what has happened with my F-1Ns, I will be sure to send this camera out for a CLA before I start using it.