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Sigma 28- vs VILTROX

Updated July 2026 — Sigma 28- wins on versatility and build, VILTROX wins on price and weight.

The Sigma 28-70mm offers superior versatility and build quality, while the VILTROX 50mm excels in portability and price. Choose based on your specific needs.

Why Sigma 28- is better

Versatility

Sigma is a zoom lens suitable for various photography styles.

Build Quality

Sigma has superb build quality and durability.

Optical Performance

Sigma's optical design rivals high-end lenses.

Why VILTROX is better

Price

VILTROX is significantly cheaper.

Weight

VILTROX is lighter at 205g.

Aperture

VILTROX has a larger maximum aperture of F2.0.

Overall score

Sigma 28-
85
VILTROX
75

Specifications

SpecSigma 28-VILTROX
Focal Length28-70mm50mm
ApertureF2.8F2.0
Minimum FocusN/A0.51m
Lens TypeZoomPrime
AutofocusYesYes

Dimension comparison

Sigma 28-VILTROX

Price Comparison

The Sigma 28-70mm F2.8 DG DN is priced at $859.95, making it significantly more expensive than the VILTROX 50mm F2, which retails for $199.00. This price difference of about 73% reflects the varying capabilities and features of these two lenses. While the Sigma lens is a versatile zoom option, the VILTROX serves as a budget-friendly prime lens ideal for specific photography styles.

Build Quality and Design

The Sigma 28-70mm boasts superb build quality with a lightweight and compact body, making it suitable for day-to-day use. Its design includes features like internal focusing and a focus mode switch, adding to its usability. In contrast, the VILTROX 50mm is also lightweight, weighing only 205g, and offers an ultra-compact design that enhances its portability. Although the Sigma lens is heavier, its overall construction is aimed at providing durability and reliability during extensive use.

Optical Performance

Sigma’s optical design is derived from the acclaimed 24-70mm F2.8 DG DN | Art lens, promising outstanding image quality throughout its zoom range. This lens is known for its versatility and high performance, making it suitable for various photography styles. The VILTROX 50mm, while a prime lens, features a complex optical structure of 9 groups and 13 elements, including 3 ED and 1 aspherical element. This design allows for superb optics, promoting excellent image quality, especially for portraits.

Autofocus Capabilities

In terms of autofocus, the Sigma 28-70mm features a focus mode switch that enhances its usability for different shooting needs. However, the VILTROX 50mm lens is equipped with an STM (Stepping Motor) that provides reliable, fast, and quiet autofocus, making it particularly advantageous for both photography and video recording. This fast and silent operation is crucial for capturing spontaneous moments without drawing attention, an area where the VILTROX excels.

Aperture and Depth of Field

The Sigma lens has a constant aperture of F2.8 throughout its zoom range, allowing for consistent exposure and depth of field control. This is beneficial for achieving beautiful bokeh effects, especially when zoomed in. The VILTROX, on the other hand, features a larger maximum aperture of F2.0, which provides more significant light-gathering ability and allows for smoother background bokeh due to its 9-blade circular aperture. This makes the VILTROX particularly appealing for portrait photographers looking to create artistic background blur.

Minimum Focusing Distance

The minimum focusing distance is another area where the two lenses differ significantly. The Sigma 28-70mm does not specify its minimum focusing distance, leaving some uncertainty about its close-up capabilities. Conversely, the VILTROX 50mm has a minimum focusing distance of 0.51m, offering enhanced close-up performance and versatility for macro-style shooting. This feature makes the VILTROX a strong choice for photographers who frequently shoot subjects at close range.

Versatility and Use Cases

The Sigma 28-70mm is designed to be a versatile zoom lens suitable for a variety of photography styles, from landscapes to portraits, thanks to its focal length range. This flexibility makes it an excellent choice for photographers who want an all-in-one solution. The VILTROX 50mm, while a prime lens, is particularly well-suited for portraiture and other subjects where a standard focal length excels. Its compact design and lightweight nature lend themselves well to travel and everyday photography, making it a practical choice for casual shooters.

Which should you buy?

Choosing between the Sigma 28-70mm F2.8 DG DN and the VILTROX 50mm F2 comes down to your specific photography needs and budget. The Sigma lens is ideal for those seeking a high-quality zoom lens with excellent versatility, albeit at a premium price of $859.95. In contrast, the VILTROX, priced at $199.00, offers a compelling option for photographers who prefer a lightweight, compact prime lens with impressive optical performance and fast autofocus capabilities. If budget and portability are key considerations, the VILTROX is a clear winner. However, for those who require the flexibility of a zoom lens for diverse shooting situations, the Sigma is worth the investment.