A few years ago, my wife Samantha and I went on an over night backpacking trip up Eagle Creek, Oregon. At the time I was carrying my Wisner 4x5 with a contingent of lenses, actually quite a bit of premium glass. My pack was so heavy that I thought that I was carrying lead weights or rocks. From then on I decided to cut down the weight in my pack. To that end I invested in the Toyo 45CF which, at a little over three pounds, was less than half the weight of my Wisner. After consulting Kerry Thalman's web site, I found out that there is a plethora of light weight lenses that are more than adequate for covering the 4x5 format in the field. I switched the 90mm Super Angulon for the 105mm Fujinon-W (I always felt that the 90mm was too wide for my purposes, and the extra F-stop in the Fuji lens is very useful for focussing), the 120mm Nikkor SW (a mammoth but beautiful lens) for the 125mmFujinon-W, I kept the 150mm Nikkor-W as it is small and very lightweight, The 210mm Caltar was replaced with the 200mm Nikkor M (hard to find but worth it), and I retained the 300mm Nikkor M. I also replaced my cotton focussing cloth with the Harrison dark cloth, saving more weight, and either replaced or eliminated anything that I could to pare more weight. Because I crafted a rear element filter adapter for my 105mm Fujinon lens, I can use 52mm filters for all of my lenses, which weigh much less than the 67mm filters I was carrying before. As it stands, my pack now weighs less than twenty pounds, not including the tripod. I still, however, carry film holders instead of readyloads, just fewer of them.