Sigma 28- vs VILTROX
Updated July 2026 — Sigma 28- wins on price and weight, VILTROX wins on autofocus.
The Sigma 28-70mm F2.8 offers superior versatility and build quality, while the VILTROX 9mm F2.8 excels in affordability and wide-angle performance.
Why Sigma 28- is better
Versatility
Sigma is a standard zoom lens suitable for various photography scenarios.
Build Quality
Sigma features superb build quality and advanced features.
Optical Performance
Sigma provides exceptional image quality throughout its zoom range.
Why VILTROX is better
Price
VILTROX is significantly cheaper at $199.
Weight
VILTROX is more compact and lightweight.
Wide Angle
VILTROX specializes in wide-angle shots, ideal for landscapes.
Overall score
Specifications
| Spec | Sigma 28- | VILTROX |
|---|---|---|
| Focal Length | 28-70mm | 9mm |
| Aperture | F2.8 | F2.8 |
| Compatibility | Full-frame | Full-frame & APS-C |
| Autofocus | Yes | Yes |
| Weight | 1.0 kg | 0.5 kg |
Dimension comparison
Price Comparison
The Sigma 28-70mm F2.8 DG DN for Sony E is priced at $859.95, whereas the VILTROX 9mm F2.8 E comes in significantly lower at $199.00. This makes the VILTROX about 77% cheaper than the Sigma lens. For photographers on a budget or those just starting out, the lower price of the VILTROX may be particularly appealing. Despite the price difference, each lens targets different photography needs, making their value propositions distinct even within the same market.
Optical Performance
The Sigma 28-70mm boasts an optical design that mirrors the acclaimed 24-70mm F2.8 DG DN | Art, ensuring exceptional image quality throughout its zoom range. It is designed for performance and portability, making it suitable for various photography scenarios. In contrast, the VILTROX 9mm F2.8 E offers a wide-angle perspective with a bright F2.8 aperture, which excels in low-light conditions while providing beautiful background separation. While the Sigma lens may be better for versatility in framing, the VILTROX stands out for those who prioritize wide-angle shots.
Build Quality and Design
The Sigma lens is built with superb quality, featuring a lightweight and compact body that is ideal for everyday use. It also includes advanced features like internal focusing and a focus mode switch. The VILTROX lens, while also compact and lightweight, emphasizes mobility, making it a great option for photographers who need to travel light without sacrificing image quality. Although both lenses prioritize portability, the Sigma's superior build quality may appeal to professional photographers seeking durability.
Autofocus Capabilities
The Sigma 28-70mm includes a focus mode switch, enhancing its usability for different shooting styles. However, the VILTROX 9mm F2.8 E shines with its efficient and reliable autofocus. Its built-in STM stepping motor allows for precise autofocus and tracking, supporting features like eye and face detection for heightened responsiveness. This makes the VILTROX particularly advantageous for dynamic shooting situations, such as events or wildlife photography, where fast focus is essential.
Compatibility
The Sigma lens is designed for Sony E-mount cameras, offering compatibility with a broad range of models. It is particularly suited for full-frame photography, which can be a significant advantage for serious enthusiasts or professionals. On the other hand, the VILTROX is also designed for Sony E-mount systems but specifically caters to both full-frame and APS-C sensor formats. This versatility makes the VILTROX a great choice for photographers using different camera types within the Sony ecosystem.
Intended Use
The Sigma 28-70mm F2.8 is a versatile standard zoom lens, ideal for everything from portrait to landscape photography. It aims to balance performance with portability, making it suitable for daily use. Conversely, the VILTROX 9mm F2.8 E is tailored for those who specialize in wide-angle shots, making it perfect for architecture, landscapes, and creative photography. Depending on your specific photography style, one lens may be more beneficial than the other.
User Experience
The Sigma lens offers a high-quality user experience with its focus mode switch and internal focusing system, catering to professional needs. Meanwhile, the VILTROX lens provides a smooth manual focus control, allowing for precise adjustments. Users looking for quick autofocus and ease of use may prefer the VILTROX, especially in fast-paced shooting environments. Each lens offers a different experience based on the user’s priorities, whether they value speed, precision, or adaptability.
Which should you buy?
Choosing between the Sigma 28-70mm F2.8 DG DN and the VILTROX 9mm F2.8 E ultimately depends on your photography needs. If you require a versatile lens that excels in various scenarios and can accommodate full-frame photography, the Sigma is the better choice despite its higher price of $859.95. However, if you're looking for a budget-friendly option that offers excellent low-light performance in a compact design, the VILTROX at $199.00 presents an outstanding value. Each lens has its strengths, so consider your shooting style and budget before making a decision.

