Although I dont hike as much as I use to I still have my gear set up for at least day hikes. I find that unless I intend to shoot (with film) wildlife that a wide to moderate zoom works well. I have a backpack that I have cut a number of foam inserts for differnt configuations depending on my needs and mood. My light kit is a Sigma Sa7 with 28 to 105, the Sigma has mirror lockup, good metering, but not so good auto foucs which I dont find to be critical for landcapes. My heavy kit is Pentax K 2000, SF1n and PZ70 with 4 lens, 50mm, 28 to 90, 18 to 55 (K 2000) and a 100 to 300. I swaped out the screen of the SFIn for a split image screen from an old ME that I had sitting around and I carry just K mount manual focus lens, 28mm, 50 105mm and 300mm. I also carry a tripod and Minolta Weathermatic for shooting in the rain. My really heavy kit is my Kowa 66 with 55, 85mm and 150mm, light meter and tirpod, with MF gear I will carry 35mm as well My backback is water proof, but I also take sealing plastic bags large enought to bag all each of the bodies and lens if the weather really becomes wet.