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Canon RF vs Sigma 28-

Updated July 2026 — Canon RF wins on focusing and magnification, Sigma 28- wins on price and aperture.

The Canon RF 85mm F2 Macro is STM offers excellent macro capabilities and a lower price, while the Sigma 28-70mm F2.8 DG DN provides versatility with its zoom range.

Why Canon RF is better

Price

Canon is $270.95 cheaper than Sigma

Macro Capability

Canon offers macro functionality with 0.5x magnification

Aperture

Canon has a brighter f/2 aperture for low-light performance

Why Sigma 28- is better

Zoom Range

Sigma provides a versatile 28-70mm zoom range

Build Quality

Sigma is known for its superb build quality

Weight

Sigma is lightweight and compact for daily use

Overall score

Canon RF
88
Sigma 28-
82

Specifications

SpecCanon RFSigma 28-
Max Magnification0.5xN/A
Minimum Focus1.15 ftN/A
Image StabilizationYesNo
Control RingYesNo
Internal FocusingNoYes

Dimension comparison

Canon RFSigma 28-

Overview of the Canon RF 85mm F2 Macro is STM

The Canon RF 85mm F2 Macro is STM is an excellent choice for photographers seeking a versatile medium-telephoto lens. Priced at $589.00, it stands out with its bright f/2 aperture, making it ideal for low-light situations and portrait photography. This lens is designed for Canon's full-frame mirrorless cameras and offers macro capabilities that enhance its functionality for close-up shots.

The lens features a remarkable maximum magnification of 0.5x and a minimum focusing distance of 1.15 ft, allowing for detailed capture of subjects. With optical image stabilization that provides up to 5 stops of shake correction, this lens is particularly well-suited for shooting in challenging conditions. Its lightweight design and control ring for direct setting changes make it a practical choice for both amateur and professional photographers.

Overview of the Sigma 28-70mm F2.8 DG DN

The Sigma 28-70mm F2.8 DG DN for Sony E is a versatile standard zoom lens priced at $859.95. This lens offers a constant f/2.8 aperture throughout its zoom range, which is beneficial for maintaining consistent exposure and depth of field. Known for its superb build quality and lightweight design, it bridges the gap between performance and portability.

Its optical design draws on the acclaimed 24-70mm F2.8 DG DN | Art lens, promising outstanding image quality. The internal focusing mechanism enhances usability, while the lens’s nano porous coating helps reduce flare and ghosting. With its compact body and focus mode switch, the Sigma lens is ideal for day-to-day shooting, making it a practical addition to any photographer’s kit.

Price Comparison: Canon RF 85mm vs. Sigma 28-70mm

When comparing prices, the Canon RF 85mm F2 Macro is STM is about 31% cheaper than the Sigma 28-70mm F2.8 DG DN, with a price difference of $270.95. At $589.00, the Canon lens offers a more budget-friendly option for those looking for a high-quality lens without breaking the bank. In contrast, the Sigma lens, priced at $859.95, justifies its cost with its advanced zoom capabilities and superior optical performance.

While the Sigma lens’s price may reflect its versatility, the Canon lens provides excellent macro functionality and a bright maximum aperture that caters well to portrait and low-light photography. This significant price gap may influence buyers who are budget-conscious or those who prioritize specific lens features.

Features and Performance: Canon vs. Sigma

The Canon RF 85mm F2 Macro is STM excels in providing a beautiful bokeh effect due to its f/2 aperture, making it a prime choice for portrait photography. Its hybrid image stabilization is particularly valuable for macro shooting, compensating for angular and shift shake, which is crucial for capturing fine details at close range.

On the other hand, the Sigma 28-70mm F2.8 DG DN offers a versatile zoom range of 28-70mm, which is ideal for various shooting scenarios, from landscapes to portraits. While it lacks the macro capabilities of the Canon lens, its constant f/2.8 aperture throughout the zoom range ensures consistent performance. The Sigma lens’s superb build quality and lightweight body make it a reliable companion for daily use, appealing to photographers who value durability and ease of transport.

Usability and Handling: Which is More Convenient?

In terms of usability, the Canon RF 85mm F2 Macro is STM provides a unique experience with its customizable control ring, allowing photographers to make quick adjustments on the fly. Its lightweight design further enhances its portability, making it a great option for travel and street photography.

Conversely, the Sigma 28-70mm F2.8 DG DN is designed with practicality in mind, featuring an internal focusing mechanism that eliminates the lengthening of the lens during focus adjustments. This design choice not only enhances the handling but also contributes to its compact nature. The focus mode switch is another convenient feature, allowing users to switch between different focusing modes seamlessly. Ultimately, the choice between these two lenses will depend on the specific needs of the photographer in terms of handling and shooting style.

Compatibility: Which Lens Fits Your System?

The Canon RF 85mm F2 Macro is STM is specifically designed for Canon's full-frame mirrorless cameras, including models like the EOS RP, EOS R, EOS R5, and EOS R6. This specialization means that users of Canon mirrorless systems will benefit from optimal performance and compatibility.

In contrast, the Sigma 28-70mm F2.8 DG DN is tailored for Sony E-mount cameras, making it an excellent choice for photographers invested in the Sony ecosystem. The lens’s design leverages the latest technology to ensure high performance across its zoom range, appealing to users who prioritize versatility within their gear.

Which should you buy?

Choosing between the Canon RF 85mm F2 Macro is STM and the Sigma 28-70mm F2.8 DG DN ultimately depends on your photographic needs and budget. The Canon lens is a fantastic option if you’re looking for a specialized portrait and macro lens with exceptional bokeh and low-light performance at a lower price point. In contrast, the Sigma lens offers a broader zoom range and consistent f/2.8 aperture, making it ideal for photographers who require versatility in their shooting scenarios.

If you prioritize macro capabilities and a lightweight design, the Canon RF 85mm F2 Macro is the clear winner. However, if you're seeking a well-rounded zoom lens with outstanding image quality for everyday use, the Sigma 28-70mm F2.8 DG DN may be the better fit. Ultimately, both lenses deliver excellent performance, but your choice will hinge on the unique features that align best with your photography style.