Hello. I'm off to the Cairngorms in February for a few days walking and sleeping in snow holes, I will be taking my X-E1 and xc16-50 as it's either that or the xc 50-230(my only lenses ) I've not shot in snow conditions before, what would you recommend I start at settings wise to get to a point I can play from(massive learning curve at the moment) also should I look for a filter or filters too? I won't be taking a tripod but thought I could use a dry bag on my pack as a beanbag like rest. The batteries will be in a dry bag inside my top to protect from the cold. Any advice greatfully received. Dave.