Has anyone else experienced excessive mirror-tripping after being out in the cold for a while?
I was out yesterday with my K-70, it was -26C with a stiff wind (WC -40). The camera was fine until the end of the second hour: when I'd press the shutter I'd often get a triple-flip of the mirror, as if it was taking three shots. I still got the image (and only one), it's not like I accidentally set it to multi-frame. Camera seems fine this morning, doesn't seem to have done any damage, but I was wondering if anyone else has experienced this.
The battery was fine, was at half when I started and lasted 1.5 hours, had a warm one in my pocket to change to. But I'm hoping -20C isn't the limit, forecast here isn't above -25C for at least a week, and when these cold spells hit they usually last a few weeks.
So a few related questions:
I'm considering sticking one of those hand warmers in my bag, they're supposed to last 10 hours, has anyone tried it? Is there a danger of them being too hot, or the constant temperature shift in and out of the bag causing damage?
Would a different camera body have better low-temperature performance? Like, do I need an excuse to get a K-1?
Any other suggestions for getting more than a couple hours-worth of cold-time? I'd like to be able to be out all day.
TIA...