Canon RF75- vs Sony FE
Updated July 2026 — Canon RF75- wins on accessories and zoom, Sony FE wins on aperture and build.
The Canon RF75-300mm offers greater versatility and affordability, while the Sony FE 40mm excels in low-light performance and build quality.
Why Canon RF75- is better
Price
Canon lens is $239, significantly cheaper than Sony's $798.
Zoom Range
Canon offers a 300mm zoom, while Sony has a fixed 40mm.
Included Accessories
Canon includes a UV filter and cleaning kit, Sony does not.
Why Sony FE is better
Build Quality
Sony features an aluminum exterior for durability.
Low-Light Performance
Sony's f/2.5 aperture is better for low-light conditions.
Compact Design
Sony is ultra-compact and lightweight.
Overall score
Specifications
| Spec | Canon RF75- | Sony FE |
|---|---|---|
| Focal Length | 75-300mm | 40mm |
| Max Aperture | f/4-5.6 | f/2.5 |
| Weight | Approx. 300g | Approx. 200g |
| Autofocus | Advanced | Reliable |
| Compatibility | Canon EOS R | Full-frame & APS-C |
Dimension comparison
Overview of the Canon RF75-300mm and Sony FE 40mm f/2.5 G Lenses
The Canon RF75-300mm is priced at $239.00, while the Sony FE 40mm f/2.5 G Lens is significantly more expensive at $798.00, making the Canon lens about 70% cheaper. This considerable price difference raises the question of what features and benefits each lens offers, ultimately influencing their suitability for different photography needs.
Design and Build Quality
The Canon RF75-300mm is designed to be compact, lightweight, and portable, with a weight comparable to a 500ml water bottle. This makes it an excellent choice for photographers who need to carry their gear without the burden of heavy equipment. In contrast, the Sony FE 40mm f/2.5 G Lens boasts an aluminum exterior that ensures a premium finish and durability, appealing to those looking for a robust yet stylish lens. Both lenses prioritize portability, but the materials used in the Sony lens give it an edge in terms of durability and aesthetics.
Focal Length and Versatility
The Canon RF75-300mm offers an impressive range of focal lengths, reaching up to 300mm, allowing for dramatic changes in composition and perspective. This versatility makes it ideal for wildlife and sports photography, where distance is often a factor. On the other hand, the Sony FE 40mm f/2.5 G Lens features a fixed focal length of 40mm, suitable for street photography and portraits. While the Canon lens excels in zoom capabilities, the Sony lens delivers consistent performance in a variety of scenarios, though it lacks the same range.
Aperture and Low-Light Performance
When it comes to aperture, the Canon RF75-300mm has a variable aperture of f/4-5.6, which may limit its performance in low-light conditions. Conversely, the Sony FE 40mm f/2.5 G Lens offers a maximum aperture of f/2.5, making it a better option for low-light photography and achieving a shallow depth of field. This difference in aperture size can significantly impact creative control, especially for photographers seeking to create bokeh effects or shoot in dim environments.
Autofocus Capabilities
The Canon RF75-300mm lens features advanced autofocus capabilities, including eye detection at the 300mm zoom range, which is beneficial for capturing sharp images of moving subjects. The Servo AF system enhances its performance during both still and video shooting. While the Sony FE 40mm f/2.5 G Lens does not explicitly mention its autofocus features, its overall design and G series lineage suggest reliable autofocus performance that is expected in high-quality lenses. If autofocus precision is crucial for your photography, the Canon lens may have an advantage with its specialized features.
Included Accessories
The Canon RF75-300mm comes with a range of useful accessories, including a UV filter, lens cap keeper, and a comprehensive cleaning kit. These additions enhance the value of the purchase, providing essential tools for maintaining the lens. In contrast, the Sony FE 40mm f/2.5 G Lens does not include any accessories in the price. For photographers looking for a complete package, the Canon lens presents a more attractive option with its additional items, making it a better deal overall.
Target Audience and Use Cases
The Canon RF75-300mm is specifically designed for Canon EOS R series cameras, making it an excellent choice for dedicated Canon users who require a versatile zoom lens for various shooting scenarios. It is particularly appealing to those interested in wildlife, sports, or any photography requiring significant zoom capabilities. The Sony FE 40mm f/2.5 G Lens, meanwhile, caters to both full-frame and APS-C camera users, making it a versatile option for street and portrait photographers. Its compact design and quality performance make it appealing for everyday use.
Which should you buy?
In summary, the Canon RF75-300mm F4-5.6 Zoom Lens is the most cost-effective choice at $239.00, offering impressive zoom capabilities and a range of included accessories. It is particularly suitable for photographers needing versatility and advanced autofocus features. On the other hand, the Sony FE 40mm f/2.5 G Lens, priced at $798.00, appeals to those who prioritize build quality, low-light performance, and a compact design. Ultimately, your choice should depend on your specific photography needs, budget, and camera compatibility. If versatility and affordability are your primary concerns, the Canon lens is the clear winner. However, if you seek superior low-light performance and a premium feel, the Sony lens may justify its higher price.

