Sigma FE 105mm f/1.4 DG HSM Art Wide Aperture Examples: Deer At Dawn (Sony A7R IV)
These examples from the Sigma FE 105mm f/1.4 DG HSM Art were shot handheld using IBIS at full aperture or close to it. Often it is better to use f/1.8 or f/2 for more even illumination across the frame and a pop in micro contrast, so most shots are at f/1.8.
Sharpness and bokeh are considerations here.
Sigma FE 105mm f/1.4 DG HSM Art Wide Aperture Examples: Deer At Dawn
Includes images up to full camera resolution.

Fawn Studying Matters
[low-res image for bot]
f1.8 @ 1/100 sec handheld IBIS=on EFC shutter, ISO 200; 2020-05-06 05:48:54
Sony A7R IV + Sigma FE 105mm f/1.4 DG HSM Art
ENV: Mt Whitney foothills, altitude 6250 ft / 1905 m, 58°F / 14°C
RAW: Enhance Details, LACA corrected
Sony A7R IV + Sigma FE 105mm f/1.4 DG HSM Art
ENV: Mt Whitney foothills, altitude 6250 ft / 1905 m, 58°F / 14°C
RAW: Enhance Details, LACA corrected
[low-res image for bot]