Four days in the Alberta Rockies with only what I can carry on my back. I’ve never done that and because of that I’m worried I might not balance being prepared with weight. Think this is too much?

Contents:

Sony A7ii , 35mm 2.8, rokinon 85mm 1.4, Fuji x20, 3 extra batteries for the Sony, 1 extra for the Fuji.

Possible optional gear, but will unlikely bring due to weight and size: a 70-200 2.8, 24-70 2.8, and a 10-24 3.5-4.5.