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Sigma 18- vs VILTROX

Updated July 2026 — Sigma 18- wins on weight and focal length, VILTROX wins on aperture and autofocus.

The Sigma lens offers versatility and compactness, while the VILTROX excels in low-light performance and advanced features.

Why Sigma 18- is better

Versatility

Sigma offers a zoom range of 18-50mm.

Compact Design

Sigma is lightweight and portable.

Optical Quality

Sigma features in-camera aberration correction.

Why VILTROX is better

Low-Light Performance

VILTROX has a larger f/1.8 aperture.

Advanced Autofocus

VILTROX includes eye and face recognition.

LCD Display

VILTROX features a built-in LCD screen.

Overall score

Sigma 18-
85
VILTROX
80

Specifications

SpecSigma 18-VILTROX
Focal Length18-50mm16mm
Aperturef/2.8f/1.8
Weight16.5 oz19.9 oz
Mount TypeSony ENikon Z
AutofocusYesYes

Dimension comparison

Sigma 18-VILTROX

Overview of the Sigma 18-50mm F2.8 DC DN Contemporary

The Sigma 18-50mm F2.8 DC DN Contemporary lens is designed for Sony E mount cameras, offering a versatile focal range and excellent optical performance. Priced at $587.00, it provides a compact option for photographers seeking a blend of quality and portability. The lens features superb optical quality and in-camera aberration correction, making it suitable for various photography styles, from portraits to landscapes.

Weighing in at a compact size, the Sigma lens is touted for its small and light design, which contributes to its portability. This makes it an appealing choice for photographers who prefer to travel light without sacrificing image quality. The lens also incorporates the latest technology to combine optical performance with ease of use, making it a solid choice for both amateurs and professionals alike.

Overview of the VILTROX 16mm f/1.8 Z Lens

The VILTROX 16mm f/1.8 Z Lens is a prime wide-angle lens specifically designed for Nikon Z mount full-frame cameras. Priced at $580.00, it is about 1.2% cheaper than the Sigma lens. This lens excels in low-light situations, thanks to its large f/1.8 aperture, allowing photographers to capture stunning images even in dimly lit environments. It also offers a wide 105.6° angle of view, making it ideal for landscapes, cityscapes, and architectural photography.

Additionally, the VILTROX lens features advanced autofocus capabilities with eye and face recognition, ensuring precision in capturing subjects. The inclusion of an LCD display provides users with real-time shooting parameters, enhancing the shooting experience. This lens is designed to be portable, weighing just 19.9 ounces, making it a convenient option for photographers on the go.

Build Quality and Design

Both lenses exhibit commendable build quality and design, but they cater to different needs. The Sigma lens is compact and lightweight, making it easy to carry around for extended periods. Its design prioritizes versatility without compromising optical performance, appealing to those who appreciate a multi-functional lens.

Conversely, the VILTROX lens stands out with its advanced features, such as the LCD screen and customizable button, adding a layer of functionality that enhances the user experience. While both lenses are designed for portability, the VILTROX offers more innovative features, making it a strong contender for photographers who prioritize technology and ease of use.

Optical Performance

In terms of optical performance, the Sigma 18-50mm lens is engineered for versatility, featuring a focal length range that is ideal for a variety of photography styles. Its superb optical quality, combined with in-camera aberration correction, ensures that images are sharp and clear across the zoom range.

On the other hand, the VILTROX 16mm lens promises exceptional image quality through its 12 groups of 15 optical elements, including aspherical lenses. This design aims to capture vivid and detailed pictures with a wide viewing range. When it comes to low-light performance, the VILTROX's f/1.8 aperture gives it an edge, allowing for more creative shooting options in challenging lighting conditions.

Autofocus Capabilities

Autofocus is a critical aspect of modern photography, and both lenses offer impressive capabilities. The Sigma lens features a reliable autofocus system that works well across its focal range, making it suitable for both still photography and video work.

The VILTROX lens takes autofocus one step further with its STM stepping motor, which provides precise and fast autofocus, supporting advanced features like face and eye recognition. This can be particularly beneficial for portrait and event photographers who need to quickly focus on subjects. The VILTROX's seamless switching between manual and autofocus modes adds flexibility for users who prefer hands-on control.

Price Comparison

With the Sigma lens priced at $587.00 and the VILTROX lens at $580.00, there is a slight price difference of $7.00, making the VILTROX about 1.2% cheaper. This marginal difference may not be a significant factor for many photographers, but it does make the VILTROX a more budget-friendly option for those looking to save while still acquiring a high-quality lens.

Considering the price point alongside the features, the VILTROX lens offers a solid value proposition, especially for photographers who will benefit from its advanced autofocus technology and low-light performance.

User Experience and Compatibility

User experience can heavily influence the choice between these two lenses. The Sigma 18-50mm lens is compatible with a range of Sony E mount cameras and provides a versatile option for various shooting scenarios. Its user-friendly design ensures that both amateurs and professionals can achieve excellent results with ease.

The VILTROX lens is compatible with a wide array of Nikon Z mount full-frame mirrorless cameras, including popular models like the Z5, Z6, and Z7. Its features, such as the LCD display and customizable button, enhance the user experience, making it a compelling choice for photographers who seek both functionality and ease of use.

Which should you buy?

Ultimately, the choice between the Sigma 18-50mm F2.8 DC DN Contemporary and the VILTROX 16mm f/1.8 Z Lens will depend on your specific needs and preferences. If you seek a versatile zoom lens that performs well across different scenarios, the Sigma is an excellent choice. However, if low-light performance, advanced autofocus features, and a wider angle of view are your priorities, the VILTROX lens may be the better option.

Both lenses offer unique strengths, with the Sigma excelling in versatility and the VILTROX providing advanced technology. Consider your shooting style, camera compatibility, and budget to make an informed decision on the right lens for you.