For day hikes/climbs up into more extreme altitudes and rocks, mostly in the Eastern Sierra, so if you've been there, or just seen it from the 395, you'll know the conditions I'm talking about. Carrying: Tripod Various rectangular filters GH2 14-45, 20mm, 40-150 possibly 7-14. Canon 7d at least three lenses for that Rokkor 135mm f2 and 200mm 3.5 adapter small bit of cleaning gear Leatherman and various other small tools. It's got to be backpack-style, as sling-type bag drive me nuts after 1/2 or so, and most of the travel will involve steep inclines and possibly class 3 type hand-grabbing, etc.... Anyone?