Sony’s decision to open their full-frame E-mount mirrorless cameras to third-party lens manufacturers has led to a thriving market with a variety of options. Among these, three standard zoom lenses stand out: the Sony 24-70mm f/2.8 GM II, the Sigma 24-70mm f/2.8 DG DN Art II, and the Tamron 28-75mm f/2.8 G2. These lenses are popular because they offer a versatile zoom range and a bright maximum aperture, making them ideal for various shooting scenarios, including low-light situations and achieving smooth bokeh.