I'd appreciate your thoughts. What should go into a kit for landscapes that fulfills the criteria of being sharp, lightweight, and covering the focal length range 20 to 135 (at least!) on FX? This is easy to do if weight is not an issue, but for 6 hour mountain days, with bag, filters, tripod and food/clothing, weight really is an issue. How to carry it is sorted - but what should I be carrying? So you have something to react to, I'll be taking the following to Scotland's mountains and coast for a month soon: D700 with 20/2.8 AIS, 35/2 AFD, and 75-150/3.5E. Can I do better? And how would a DX shooter solve this problem?