Interesting answers...
I guess the lighter setup is F200EXR and it has also a good image quality for a P&S.
reeftool got the point... on one side there is the setup - the whole kit - and on the other what you should have mounted on your camera. Having a telephoto mounted and a wide angle on your bag it's a reasonable solution imo.
Probably, a good compromise for keeping it very simple and light would be:
- DA 15mm (212 gr.)
- DA 55-300mm (440 gr.)
Although, in total it sums up to roughly 1.35Kg (with a KM - 590gr.). With a bag and a couple of filters you'll probably end up with more than 1.5Kg just for the camera...
plus you have to add a backpack, water, food, spare clothes, hiking equipment, camping equipment (if needed)...
is it only me that find it a bit too much? Do I have to suffer that much to get nice pictures on the mountains???