As a gift from some of my friends for my 40th birthday last year, I have gotten a stay at Dalen Vilmarkssenter in Norway (http://www.dalenvillmarkssenter.no/
) where I am staying a night in February (we leave early in the morning with a snow mobile before daylight, settle in the hut with precut holes for lenses) hopefully get to take pictures of eagles, and then return after daylight.
I have gotten word that I will be able to borrow two bodies (1Dx and 1D iv, and a 400 F2.8L II) and I am thinking to bring my own 70-200 2.8L II, and a 2xIII TC.
Thus a question arises...
Are there other lenses you would bring to be safe? In addition, what aperture would you choose as a rule of thumb? I am thinking F 5.6 or 8 (to include the environment), and maybe 2.8 for portraits (where the background is not important)?