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Sigma vs VILTROX AF

Updated July 2026 — Sigma wins on build and image quality, VILTROX AF wins on price and weight.

Winner

The Sigma lens offers superior image quality and low-light performance, while the VILTROX lens is more affordable and portable.

Why Sigma is better

Image Quality

Sigma excels in low-light conditions with a larger aperture.

Build Quality

Sigma has a more robust and professional build.

Compatibility

Sigma supports a wider range of Sony E-mount cameras.

Why VILTROX AF is better

Price

VILTROX is significantly cheaper at $99.

Portability

VILTROX is ultra-lightweight and compact.

Innovative Design

VILTROX features a unique slide cap design.

Overall score

Sigma
85
VILTROX AF
70

Specifications

SpecSigmaVILTROX AF
ApertureF1.4F4.5
Focal Length30mm28mm
Motor TypeSteppingVCM
Elements96
CompatibilitySony EFuji X

Dimension comparison

SigmaVILTROX AF

Overview

When comparing the Sigma 30mm F1.4 Contemporary DC DN Lens for Sony E and the VILTROX AF 28mm F4.5 XF Pancake Lens for Fuji X Mount, the most immediate distinction is in their price and intended use. The Sigma lens is priced at $419.00, while the VILTROX lens comes in at a significantly lower price of $99.00, making it about 76% cheaper than the Sigma. This price difference reflects not only the unique features of each lens but also the target audience they serve.

Design and Build Quality

The Sigma 30mm F1.4 boasts a robust design, characteristic of Sigma's Contemporary line, which combines high performance and compactness. It features nine rounded aperture blades and includes accessories such as a lens hood. On the other hand, the VILTROX AF 28mm is ultra-lightweight, weighing just 60g and measuring only 15.3mm thick. This makes it the lightest and thinnest lens in its category, designed for on-the-go shooting. While the Sigma offers a more substantial build, the VILTROX lens emphasizes portability, which is ideal for casual photographers and vloggers.

Image Quality

In terms of image quality, the Sigma 30mm F1.4 is designed to excel in low light conditions due to its large aperture. It offers a perfect balance of image quality and compact size, making it suitable for various shooting environments. Conversely, the VILTROX AF 28mm features six elements in six groups, including two ED lenses and two aspherical lenses, which contribute to sharp images and vibrant colors. The unique front element of the VILTROX lens allows for beautiful starburst effects, appealing to those who appreciate artistic photography.

Autofocus Performance

Autofocus is a critical feature for photographers, and both lenses deliver distinct advantages. The Sigma lens utilizes a stepping motor for fast and accurate autofocus, making it particularly useful for video work. In contrast, the VILTROX AF 28mm incorporates a built-in VCM motor that ensures quick and effortless autofocus, also supporting face and eye recognition. This feature makes the VILTROX lens particularly user-friendly, especially for those who prioritize spontaneous shooting.

Compatibility

The Sigma 30mm lens is compatible with a wide range of Sony E-mount cameras, including models like the a33, a55, and a900. This broad compatibility is a significant advantage for users who own different Sony camera bodies. Meanwhile, the VILTROX AF 28mm is specifically designed for Fuji X-mount cameras, including popular models like the X-T5, X-H2, and X-Pro3. If you own a camera from one of these brands, your choice will significantly depend on your existing equipment, as the lenses are not interchangeable between the two mounts.

Price and Value

One of the most striking differences between these two lenses is their price points. The Sigma 30mm is listed at $419.00, while the VILTROX AF 28mm is only $99.00. This means that the Sigma lens is about 320% more expensive than the VILTROX, which may deter budget-conscious consumers. However, the Sigma lens's higher price may also correlate with its advanced features and build quality, which could be worth the investment for serious photographers.

Accessories and Additional Features

The Sigma 30mm comes with essential accessories including a lens hood and both rear and front caps, enhancing its usability right out of the box. Meanwhile, the VILTROX AF 28mm features an innovative slide cap design that transforms into a lens cap, providing additional protection from dust and dirt. This playful yet practical design adds a unique touch to the VILTROX lens, making it an appealing option for those who enjoy creative shooting experiences.

Which should you buy?

Choosing between the Sigma 30mm F1.4 Contemporary lens and the VILTROX AF 28mm F4.5 lens largely depends on your specific needs and budget. If you prioritize high image quality, low-light performance, and compatibility with Sony E-mount cameras, the Sigma lens may be worth the investment despite its higher price. However, if you seek a compact, lightweight lens that is easy to carry for everyday photography and is budget-friendly, the VILTROX lens stands out as an excellent choice. Ultimately, your decision should align with your shooting style and camera system.