Get Sigma 24-35mm f/2 DG HSM Art at B&H Photo for Canon/Nikon/Sony A/Sigma SA.
This scene is at relatively close range, but spans a good distance of about 2 feet from the camera to about 12 feet from the camera.
Taken at 24mm, the goal here is to see whether the Sigma 24-105mm f/4 DG OS HSM Art with its 4.4X zoom range stands a chance against its newer optimized sibling that has only a 1.45X zoom range (a compromise for quality), but a full two stops faster.
Entire-frame images up to 28 megapixels for apertures from f/2 - f/13. Large crops also included.
The results are clear-cut and should be very useful to anyone pondering a 1.4X zoom vs a 4.4X zoom.