Help with landscape lens choice

Thanks for the info. I have looked at both the sigma lenses but I couldn’t find a review which demonstrated full size shots that are sharp edge to edge. If you know of one please let me know.

I understand your reluctance to give away a full size image but maybe you could post 100% crop of the right and left edge.

I realise you can use any focal range to shoot landscapes but my interest is for wide angle as edge sharpness is not such an issue for me with longer lenses.

Thanks Ian