Landscape photography to most people means using wide or ultra wide angle lenses, just like everyone else this was how I approached landscape at the beginning. I had a few lenses that I used exclusively for landscape: Canon EF17-40mmL, Zeiss Classic 2.8/21, and Zeiss Classic 2/25, with the Zeiss 2/25 being my all-time favourite.
Not too long ago I had a desire to use a different focal length for my outdoor experiences, somehow I had chosen exploring with a 50mm lens - Zeiss Milvus 1.4/50. This is one of the best lens I've ever owned, period! Love the colour, love the construction, and obviously I love the silky smooth manual focus ring.
With my latest addition, a Zeiss Milvus 1.4/85, my landscape kit now contains a trio of Zeiss lenses in these focal lengths: 2.8/21mm, 1.4/50mm, and 1.4/85mm.
I used to own 2 Canon full frame bodies at the same time (5DII/6D) for shooting landscape. With the acquisition of a black & white rangefinder camera, I had to make a choice to let one of the Canon go. The 6D was left behind simply because it has better image quality.
Other equipments include a Zacuto Z-Finder, Gitzo Mountaineer GT1532 tripod, and some B+W filters.