vsversusfinder

Canon RF28- vs Sony FE 400-

Updated July 2026 — Canon RF28- wins on price and aperture, Sony FE 400- wins on focal length and autofocus.

The Canon RF28-70mm F2.8 IS STM is a versatile and affordable option, while the Sony FE 400-800mm f/6.3-8 G OSS excels in super-telephoto capabilities. Choose based on your specific photography needs.

Why Canon RF28- is better

Price

Canon is significantly cheaper at $1,098.95.

Aperture

Canon has a constant f/2.8 aperture for better low-light performance.

Weight

Canon is lightweight at just over one pound, enhancing portability.

Why Sony FE 400- is better

Focal Length

Sony offers a super-telephoto range of 400-800mm.

Autofocus

Sony has fast and precise autofocus for moving subjects.

Teleconverter

Sony supports high-performance teleconverters for extended reach.

Overall score

Canon RF28-
85
Sony FE 400-
78

Specifications

SpecCanon RF28-Sony FE 400-
BrandCanonSony
Price$1,098.95$2,698.00
Aperturef/2.8f/6.3-8
Focal Length28-70mm400-800mm
Weight1.1 lbs4.5 lbs
Image StabilizationYesNo

Dimension comparison

Canon RF28-Sony FE 400-

Price Comparison

When it comes to pricing, the Canon RF28-70mm F2.8 IS STM is significantly more affordable than the Sony FE 400-800mm f/6.3-8 G OSS. Priced at $1,098.95, the Canon lens is about 59% cheaper than the Sony lens, which retails for $2,698.00. This substantial price difference makes the Canon lens an attractive option for photographers seeking quality without breaking the bank. The Sony lens, while more expensive, offers a unique focal range and advanced features that may justify the higher cost for specific shooting needs.

Focal Length and Versatility

The Canon RF28-70mm F2.8 IS STM offers a versatile focal length of 28-70mm, making it ideal for a wide range of photography styles, including portraits, landscapes, and macro shots. In contrast, the Sony FE 400-800mm f/6.3-8 G OSS specializes in super-telephoto photography, covering an impressive range of 400mm to 800mm. This makes the Sony lens particularly suitable for wildlife and sports photography, where capturing distant subjects is essential. Thus, the choice between these two lenses largely depends on the photographer's intended use.

Aperture and Low Light Performance

The Canon RF28-70mm features a constant aperture of f/2.8 throughout its zoom range, which excels in low-light conditions and allows for beautiful background blur. This is particularly beneficial for portrait photography, providing creative control over depth of field. On the other hand, the Sony FE 400-800mm has a variable aperture ranging from f/6.3 to f/8. This limits its low-light performance compared to the Canon, making the latter more favorable for photographers who often shoot in dimly lit environments.

Build Quality and Durability

In terms of build quality, the Canon RF28-70mm is designed with impressive durability and weather-resistant construction, equivalent to an L-series lens, allowing it to withstand harsh environments. This makes it a reliable choice for outdoor photographers. The Sony FE 400-800mm also boasts a robust design optimized for stable handling, particularly during long shooting sessions. However, the Canon's lightweight and compact nature—just over one pound—enhances its portability, making it easier to carry on extended shoots.

Autofocus and Performance

The autofocus capabilities of both lenses cater to different needs. The Canon RF28-70mm is designed for everyday use with a smooth and quiet focusing mechanism, ideal for both stills and video content creators. In contrast, the Sony FE 400-800mm shines with its fast and precise autofocus system, which captures fast-moving subjects with accuracy, making it particularly beneficial for wildlife and sports photography. Depending on the type of photography you engage in, one autofocus system may be more advantageous than the other.

Image Stabilization

Image stabilization is a noteworthy feature in the Canon RF28-70mm lens, designed to minimize camera shake and enhance overall image sharpness, especially in low-light conditions. This added stability is crucial for handheld shooting, giving photographers confidence when shooting at slower shutter speeds. The Sony FE 400-800mm, while it does not explicitly mention image stabilization, is built with internal zoom capabilities that support stable handling, which is essential when dealing with heavy telephoto lenses. However, the Canon's explicit stabilization could be more beneficial for general users.

Special Features

The Canon RF28-70mm F2.8 IS STM lens incorporates two UD elements and two aspheric lenses that significantly reduce chromatic aberration, ensuring edge-to-edge image quality. This is a considerable advantage for photographers concerned with image fidelity. The Sony FE 400-800mm, on the other hand, is notable for its ability to utilize high-performance 1.4x and 2.0x teleconverters, which extend its focal length. This feature caters to those needing even greater reach without sacrificing image quality, making it an excellent choice for specialized photography.

Which should you buy?

The decision between the Canon RF28-70mm F2.8 IS STM and the Sony FE 400-800mm f/6.3-8 G OSS ultimately hinges on your photography needs and budget. If you seek a versatile, lightweight lens for everyday photography that excels in low-light conditions, the Canon is a fantastic option at about $1,098.95. However, if your focus is on super-telephoto photography, requiring the ability to capture distant subjects with precision, the Sony lens, priced at $2,698.00, may be worth the investment. Each lens has its strengths, catered to different styles and scenarios, making them both valuable tools depending on your photographic pursuits.