moonhawk wrote:
You won't go wrong with an OM1. My 12-100 Pro has been my go to on many trips, and basically lives on my camera. But the choice is yours, There's something to be said for the all in one super zooms, but if you're concern is IQ, stick with the 12-100. How many shots do you take where you need the extra reach? Is 200mm enough, or do you need 300? (Taking into account the 2Xcrop factor?)
I think that this is a good strategy. 12-100mm (24-200mm full-frame equivalent) is a good travel lens. I too would be concerned about the IQ super zooms. I have traveled to all these places, except for Greenland, and this focal range will do the trick. A longer lens might be nice, depending on OP's shooting style, but I would guess that the 12-100mm will do 99% of the shots.