Preorder the Sony FE 12-24mm f/2.8 GM Lens at B&H.
The manufacturer specifications for this relatively compact new lens are loaded on the site. Check out these comparisons, paying attention to the size and weight:
Sony FE 12-24mm f/2.8 GM Lens Compared to Sony FE 12-24mm f/4 G Lens
Sony FE 12-24mm f/2.8 GM Lens Compared to Sony FE 16-35mm f/2.8 GM Lens
Sony FE 12-24mm f/2.8 GM Lens Compared to Sigma 14-24mm f/2.8 DG HSM Art Lens
Sony FE 12-24mm f/2.8 GM Lens Compared to Canon EF 11-24mm f/4L USM Lens
Though its price is high, the Sony FE 12-24mm f/2.8 GM Lens will attract attention.