Sigma 17- vs Tamron 70-

Overview of the Sigma 17-40mm F1.8 DC and Tamron 70-180mm F/2.8 Di III VC VXD G2

In this comparison, we will examine the Sigma 17-40mm F1.8 DC and the Tamron 70-180mm F/2.8 Di III VC VXD G2, two high-quality lenses designed for Sony E-mount cameras. The Sigma lens is priced at $919.00, while the Tamron lens is available for $999.00, making the Sigma about 8% cheaper. Both lenses offer unique features that cater to different photographic needs, appealing to a range of photographers from enthusiasts to professionals.

Design and Build Quality

The Sigma 17-40mm F1.8 DC is built with a focus on achieving professional image quality while maintaining a compact design. Its constant F1.8 aperture allows for excellent low-light performance and creative depth effects. In contrast, the Tamron 70-180mm F/2.8 Di III VC VXD G2 emphasizes versatility with its longer focal range and moisture-resistant construction, making it suitable for a variety of conditions. The Tamron lens features a more extensive design with dimensions of 6.2" x 3.3" and a weight of 30.2 oz, which may affect portability in certain situations.

Optical Performance

When it comes to optical performance, the Sigma 17-40mm F1.8 DC is celebrated for its Art-series optics that deliver sharp detail and professional image quality. Its constant aperture of F1.8 throughout the zoom range ensures consistent exposure and depth of field control. On the other hand, the Tamron 70-180mm F/2.8 boasts a revamped optical design that maintains high image quality across its zoom range. It also incorporates TAMRON’s proprietary VC (Vibration Compensation) mechanism, enhancing stability during handheld shooting, particularly at longer focal lengths.

Autofocus Capabilities

The Sigma 17-40mm F1.8 DC leverages fast and accurate autofocus, suitable for both still photography and video applications. However, the Tamron 70-180mm F/2.8 takes autofocus to another level with its VXD (Voice-coil eXtreme-torque Drive) linear motor, which provides high-speed and high-precision auto-focusing, particularly excelling in subject tracking. The advanced autofocus features of the Tamron lens make it an appealing choice for action photography and videography.

Versatility and Use Cases

The Sigma 17-40mm F1.8 DC is ideal for various scenarios, such as portraits, travel, and video, due to its wide-angle capabilities and bright aperture. This versatility allows photographers to explore different creative styles, especially in low-light conditions. Conversely, the Tamron 70-180mm F/2.8 is designed for those who require a longer reach, making it suitable for portraiture, wildlife, or sports photography. Its ability to focus as close as 0.3m (11.8in) at 70mm adds to its versatility, enabling unique photographic expressions.

Additional Features

In terms of additional features, the Tamron 70-180mm F/2.8 incorporates a zoom lock switch, fluorine coating for scratch resistance, and compatibility with TAMRON's Lens Utility apps for customization. The Sigma 17-40mm F1.8 DC, while lacking some of these advanced features, still offers a bright constant aperture and high-quality optics that can meet the demands of many photographers. The added technology in the Tamron lens may appeal to users looking for enhanced functionality.

Price and Value

The Sigma 17-40mm F1.8 DC is priced at $919.00, while the Tamron 70-180mm F/2.8 is listed at $999.00, making the Sigma approximately $80 cheaper. This price difference could be significant for those on a tighter budget. Both lenses offer great value for their respective features, but the Sigma lens may provide a more attractive option for those prioritizing cost without sacrificing image quality.

Which should you buy?

Ultimately, the choice between the Sigma 17-40mm F1.8 DC and the Tamron 70-180mm F/2.8 Di III VC VXD G2 depends on your specific photography needs. If you seek a versatile, wide-angle lens suitable for low-light conditions and creative depth effects, the Sigma lens is an excellent choice. However, if you require a longer focal length with advanced autofocus capabilities and superior stabilization, the Tamron lens might be worth the additional investment. Evaluate your shooting style and preferences to make the best decision for your photography journey.