SIGMA 18- vs VILTROX
Updated July 2026 — SIGMA 18- leads on weight and length.
The Sigma lens offers versatility and superior build quality, while the VILTROX lens provides excellent low-light performance at a budget-friendly price.
Why SIGMA 18- is better
Versatility
Sigma's zoom range allows for more shooting options.
Build Quality
Sigma's rubber-sealed mount enhances durability.
Weight
Sigma is lighter at 300g compared to VILTROX.
Why VILTROX is better
Price
VILTROX is significantly cheaper at $179.
Aperture
VILTROX's f/1.7 aperture excels in low light.
Close Focus
VILTROX has a closer minimum focusing distance.
Overall score
Specifications
| Spec | SIGMA 18- | VILTROX |
|---|---|---|
| Zoom | Yes | No |
| Autofocus | Standard | Fast STM |
| Image Quality | High | Very High |
| Compatibility | Canon RF | Fujifilm X |
| Design Features | Compact | Hood & USB-C |
Dimension comparison
Overview of the Sigma 18-50mm F2.8 DC DN Contemporary Lens
The Sigma 18-50mm F2.8 DC DN Contemporary Lens is tailored for Canon RF mount mirrorless cameras, offering a versatile zoom range suitable for various photography styles. This lens is currently priced at $599.99. Its compact design makes it the smallest and lightest in its class, weighing only 300g. The rubber-sealed mount enhances its durability, allowing photographers to work in diverse environments while its minimum focusing distance of 12.1cm enables impressive close-up shots.
Overview of the VILTROX 35mm f1.7 Fuji
The VILTROX 35mm f1.7 Fuji lens stands out with its bright f/1.7 aperture, which is excellent for low-light conditions and creating beautiful bokeh. Priced at $179.00, this lens offers significant value, especially for portrait and street photography enthusiasts. It features an optimized optical design with 11 elements in 9 groups, ensuring sharp and vivid images. With a minimum focusing distance of 0.33m, the VILTROX lens excels in capturing detailed close-ups, making it a versatile choice for different photography scenarios.
Image Quality Comparison
When it comes to image quality, both lenses are designed to produce outstanding results but cater to different photography needs. The Sigma lens, with its zoom range of 18-50mm and a constant aperture of F2.8, allows photographers to adapt quickly to various shooting conditions while maintaining consistent quality. In contrast, the VILTROX lens’s f/1.7 aperture allows for impressive low-light performance and stunning background blur, making it ideal for portraits. With the VILTROX optimized optical design, users can expect minimal chromatic aberrations and distortion, resulting in sharp images across various focal lengths.
Autofocus Performance
Autofocus performance is a crucial factor in modern photography, especially for action shots or when capturing fleeting moments. The VILTROX lens is equipped with a new STM motor, which provides fast and near-silent autofocus performance, making it particularly suitable for both photography and video recording. In comparison, while Sigma does not explicitly detail its autofocus technology, the lens is designed to offer high performance in various conditions. Thus, if swift autofocus is a priority, the VILTROX lens may have the edge.
Portability and Design
Portability is essential for photographers on the go. The Sigma 18-50mm lens is notable for its lightweight design at just 300g, making it easy to carry during extended shoots. Its compact dimensions further enhance its travel-friendly nature. Conversely, the VILTROX lens, while not specified for weight, is designed with thoughtful details like an extended lens hood and a USB-C upgrade port for firmware updates. This design consideration means that while it may not be as light as the Sigma, it offers practical features for photographers who wish to maintain their gear effectively.
Price Comparison
The price difference between the two lenses is significant. The Sigma 18-50mm lens is priced at $599.99, while the VILTROX 35mm lens is considerably more budget-friendly at $179.00. This means the VILTROX lens is approximately 70% cheaper than its Sigma counterpart. For photographers on a budget or those just starting, the VILTROX lens offers a compelling option without compromising on performance, especially for specific styles like portrait and street photography.
Versatility in Photography
The Sigma 18-50mm lens excels in versatility due to its zoom capabilities, allowing users to shoot wide-angle landscapes and capture close-up details without needing to change lenses frequently. This makes it an excellent all-around lens for various scenes. On the other hand, the VILTROX 35mm lens, with its fixed focal length, promotes creativity by encouraging photographers to explore composition and framing without the convenience of zoom. While it may seem less versatile, the f/1.7 aperture enhances its use in low light and portrait situations where depth of field is critical.
Which should you buy?
Deciding between the Sigma 18-50mm F2.8 DC DN Contemporary Lens and the VILTROX 35mm f1.7 Fuji ultimately depends on your photography needs and budget. If you seek versatility and are prepared to invest around $599.99, the Sigma lens offers a flexible zoom range ideal for various shooting conditions. Conversely, if you are focused on portrait photography, value low-light performance, and prefer a more budget-friendly option at $179.00, the VILTROX lens is a strong contender. Each lens has unique strengths that cater to different styles, making the choice a matter of personal preference.

