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.
Coming to you from Christopher Frost, this insightful video examines three standard zoom Sony lenses. The Sony 24-70mm f/2.8 GM II, priced at $2,300, is the most expensive but promises top-tier performance. The Tamron 28-75mm f/2.8 G2 is the most affordable at $900, offering great value without compromising on quality. The Sigma 24-70mm f/2.8 DG DN Art II falls in between at $1,200, balancing performance and cost.
Frost highlights the importance of build quality and features in these lenses. All three have excellent build quality and weather-sealing, but the Sigma lens stands out with its premium feel and metal construction. The Sony and Sigma lenses feature aperture rings that can be locked into automatic mode and adjusted smoothly or with clicks, catering to both stills and video shooters. The Tamron lens, while simpler and lacking an aperture ring, is lighter and more compact, making it a convenient choice for on-the-go shooting.
The video also discusses focus performance and image stabilization. All three lenses rely on the camera's stabilization system. Autofocus performance is strong across the board, with the Sony lens having a slight edge in speed and accuracy, followed closely by the Sigma lens. The Tamron lens, while slightly behind, still offers reliable autofocus. Frost's analysis of focus breathing shows that the Sony lens is the best corrected, making it ideal for video work, followed by the Sigma and Tamron lenses.
Image quality is another critical aspect covered in the video. Tested on a demanding high-resolution sensor, all three lenses deliver sharp and contrasty images, but the Sony lens consistently comes out on top, particularly in corner sharpness and control of chromatic aberration. The Sigma lens performs well but lags slightly in corner sharpness, while the Tamron lens shows more chromatic aberration, especially at longer focal lengths. Despite these differences, all three lenses provide excellent image quality, making them suitable for professional use. Check out the video above for the full rundown from Frost.
