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.