I shoot most of my landscape work with a Canon 5D Mark II, which is a really versatile full frame camera. Is it capable of stunning prints at all but the largest sizes. I use 4 lenses with this camera:
Canon 24-105mm f/4 L
Canon 17-40mm f/4 L
Canon 100-400mm f/4.5-5.6 L
Canon 100mm macro
I also use a Fujifilm X100S sometimes for landscapes, general purpose shooting and nature, but this is mainly used as my travel camera. It is the best camera I have ever owned because of its versatility and incredible picture quality.
I also use a Slik Pro tripod, various neutral density, graduated and polarising filters. I process most of my images in Lightroom, but will occasionally use Photoshop CC for more important edits.