Sigma 135mm f/1.8 DG HSM Art Aperture Series: Mid-Creek Boulder (Nikon D810)
Get Sigma 135mm f/1.8 DG HSM Art at B&H Photo.
This series looks at brilliance and contrast from f/1.8 through f/11.
In my review of the Sigma 135mm f/1.8 DG HSM Art in Advanced DSLR:
Sigma 135mm f/1.8 DG HSM Art Aperture Series: Mid-Creek Boulder (Nikon D810)
Includes images up to full resolution from f/1.8 through f/11.