Sigma 28- vs Tamron 17-
Updated July 2026 — Sigma 28- wins on price and build, Tamron 17- wins on stabilization and focal range.
The Sigma 28-70mm offers superior build quality and image performance, while the Tamron 17-70mm provides excellent versatility and value for APS-C users.
Why Sigma 28- is better
Image Quality
Sigma lens closely resembles the performance of the renowned 24-70mm F2.8 DG DN Art lens.
Build Quality
Sigma features superb build quality with a focus mode switch and nano porous coating.
Professional Use
Sigma is tailored for professionals prioritizing image quality.
Why Tamron 17- is better
Price
Tamron is about 30% less expensive than Sigma.
Versatility
Tamron covers a wider focal length range for APS-C cameras.
Image Stabilization
Tamron includes Vibration Compensation for better video performance.
Overall score
Specifications
| Spec | Sigma 28- | Tamron 17- |
|---|---|---|
| Max Aperture | F2.8 | F2.8 |
| Focal Length | 28-70mm | 17-70mm |
| Weight | 0.93 lbs | 1.1 lbs |
| Close Focus | N/A | 7.5 in |
| Elements | 16 | 16 |
Dimension comparison
Overview of the Sigma 28-70mm F2.8 DG DN and Tamron 17-70mm f/2.8 Di III-A VC RXD
The Sigma 28-70mm F2.8 DG DN for Sony E Black is priced at $859.95, while the Tamron 17-70mm f/2.8 Di III-A VC RXD is more budget-friendly at $599.00, making it about 30% less expensive than Sigma's offering. Both lenses cater to photographers seeking versatility and performance, but they target slightly different user needs.
Optical Performance and Design
When it comes to optical performance, the Sigma 28-70mm is designed to deliver outstanding image quality, closely resembling the renowned performance of the 24-70mm F2.8 DG DN Art lens. Its internal focusing system and lightweight design make it suitable for everyday use. The Tamron 17-70mm, on the other hand, boasts a unique design as the world’s first high-speed standard zoom lens for APS-C cameras. With 16 elements in 12 groups, including two GM lens elements, it promises excellent optical performance across its zoom range. The versatility of the Tamron lens, covering a focal length equivalent of 25.5-105mm, is impressive for everyday photography.
Build Quality and Usability
The Sigma 28-70mm stands out for its superb build quality, featuring a focus mode switch and nano porous coating that enhances durability and usability. This lens is designed to be both compact and lightweight, making it an excellent choice for photographers on the go. The Tamron 17-70mm lens also emphasizes practicality with its moisture-resistant construction and fluorine coating, ensuring durability in various shooting conditions. The 7.5-inch minimum object distance at 17mm further enhances its usability, allowing for close-up shots that add creative variety.
Image Stabilization Features
The Sigma 28-70mm does not explicitly mention image stabilization in its features, which may be a consideration for those shooting in low-light conditions or at longer focal lengths. In contrast, the Tamron 17-70mm incorporates Vibration Compensation (VC) technology, which is particularly effective for video shooting, leveraging AI to improve stabilization. This makes the Tamron lens a better option for videographers or photographers who frequently work in dynamic environments where shake can be an issue.
Versatility and Focal Range
The Sigma 28-70mm lens offers a versatile zoom range suitable for a variety of photography styles, including portraits and landscapes, thanks to its standard focal range. However, the Tamron 17-70mm provides a broader range, making it an ideal lens for APS-C mirrorless cameras. With its 4.1x zoom ratio, the Tamron lens allows for a versatile approach to photography, covering everything from wide-angle shots to moderate telephoto perspectives. This added flexibility may appeal more to those looking to capture a wide range of scenes without switching lenses frequently.
Price Comparison
The Sigma 28-70mm is priced at $859.95, while the Tamron 17-70mm is available for $599.00. This price difference of about $260 highlights a significant factor for many buyers. While the Sigma lens is positioned as a premium option, the Tamron lens provides an attractive value proposition, especially for those on a budget or looking for a high-performance lens that won’t break the bank.
Target Users
The Sigma 28-70mm is tailored for photographers who prioritize image quality and build, making it a great choice for professionals or serious enthusiasts who need a reliable lens for varied shooting conditions. Conversely, the Tamron 17-70mm is optimized for APS-C users seeking a versatile, all-in-one lens with excellent optical performance, making it suitable for both amateur and professional photographers alike. The Tamron lens’s features also cater well to video creators, making it a more versatile tool for multimedia projects.
Which should you buy?
Choosing between the Sigma 28-70mm F2.8 DG DN and the Tamron 17-70mm f/2.8 Di III-A VC RXD largely depends on your specific needs. If you prioritize premium build quality and image performance for full-frame use, the Sigma lens is an excellent investment. However, if you seek a more budget-friendly, versatile option for APS-C mirrorless cameras, the Tamron lens provides great value with its wider focal range and added image stabilization features. Ultimately, both lenses have their strengths, making it essential to consider how you plan to use them in your photography journey.