Well, this is the year I turn the big 4-0. Instead of buying a car or getting a large tattoo, my family and I are taking a trip to Alaska. For the trip we plan to see wildlife, big and small, as well as plenty of beautiful landscapes. I am using this trip as an excuse to get some more gear and was hoping to get some thoughts from others out there in a similar situation, ie, buying gear for a big trip when you have a good excuse 
Specifically I would like to purchase a back-up camera. In general, any thoughts about travel and photography in Alaska are also welcome. We plan to spend time from Seward and Denali for about 10 days in August.
As of now, I plan to take a 5D MkIII with a 24mm TSE, 40mm pancake for hiking, 100mm L macro, and a 300mm f/2.8 with extenders - already have a good tripod and backpack. I am considering the 6D or Sony A7 as a second camera option. I definitely want a camera I can use without purchasing new lenses. Thanks.
Specifically I would like to purchase a back-up camera. In general, any thoughts about travel and photography in Alaska are also welcome. We plan to spend time from Seward and Denali for about 10 days in August. As of now, I plan to take a 5D MkIII with a 24mm TSE, 40mm pancake for hiking, 100mm L macro, and a 300mm f/2.8 with extenders - already have a good tripod and backpack. I am considering the 6D or Sony A7 as a second camera option. I definitely want a camera I can use without purchasing new lenses. Thanks.
