What is the Best Lens for Awesome Landscapes?

I’ve been running some online workshops each week for photographers who can’t get to their local camera clubs whilst we’ve got this COVID virus keeping us all at home. One of the questions that we’ve been asked is what’s the best lens for landscape photography? So the other night we did a session on landscapes and I got my brother, Adrian, who lives up in the lake district and does some great landscape photography to talk to us about what lenses he uses in what situations and what he finds best.