Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle vs Sony FE 1.4x Teleconverter
Updated July 2026 — Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle wins on versatility and price, Sony FE 1.4x Teleconverter wins on build quality.
The Canon RF28mm F2.8 STM Lens offers great value and versatility for casual photographers, while the Sony FE 1.4x Teleconverter is specialized for professionals needing extended reach.
Why Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle is better
Price
Canon lens is $299, significantly cheaper than Sony's $598.
Portability
Canon lens is compact and lightweight, ideal for travel.
Versatility
Canon lens works with both full-frame and APS-C cameras.
Why Sony FE 1.4x Teleconverter is better
Specialization
Sony teleconverter enhances existing lenses for specific photography.
Build Quality
Sony teleconverter is dust and moisture resistant.
Optical Performance
Sony teleconverter maintains full G Master performance.
Overall score
Specifications
| Spec | Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle | Sony FE 1.4x Teleconverter |
|---|---|---|
| Focal Length | 28mm | N/A |
| Max Aperture | f/2.8 | N/A |
| Weight | 0.5 lbs | N/A |
| Compatibility | Full-frame, APS-C | Sony E-mount |
| Light Loss | N/A | 1 stop |
Dimension comparison
Overview of the Canon RF28mm F2.8 STM Lens and Sony FE 1.4x Teleconverter
The Canon RF28mm F2.8 STM Lens is priced at $299.00, while the Sony FE 1.4x Teleconverter comes in at $598.00, making the Canon lens about 50% cheaper than its competitor. While both products serve distinct purposes in photography, they cater to different needs and preferences. The Canon lens is a compact, wide-angle option ideal for full-frame cameras, while the Sony teleconverter is designed to extend the focal length of compatible lenses, enhancing versatility for specific shooting scenarios.
Purpose and Use Cases
The Canon RF28mm F2.8 STM Lens excels in offering a wide-angle perspective, making it suitable for street photography, travel, and video work. Its 28mm focal length provides a distinct wide-angle character that is optimal for capturing expansive scenes without distortion. On the other hand, the Sony FE 1.4x Teleconverter is purpose-built for extending the reach of compatible lenses, making it particularly advantageous for sports and wildlife photography. By multiplying the focal length by 1.4x, it allows photographers to capture distant subjects without sacrificing image quality.
Design and Build Quality
The Canon RF28mm F2.8 STM Lens features a super-compact pancake design, making it extremely portable and perfect for on-the-go photography. Its lightweight construction means it won't weigh down your camera bag. In contrast, the Sony FE 1.4x Teleconverter is engineered with a dust and moisture-resistant design, ensuring reliability in various outdoor conditions. While the Canon lens is designed for everyday use, the Sony teleconverter is built to withstand challenging environments, appealing to outdoor enthusiasts and professionals alike.
Optical Performance
Both products maintain impressive optical quality, though they focus on different aspects of photography. The Canon RF28mm F2.8 STM Lens includes three aspheric elements and Canon's Super Spectra Coating, which minimizes ghosting and flare, providing excellent image clarity. Additionally, it has a minimum focus distance of about 9 inches, allowing for close-up shots. Conversely, the Sony FE 1.4x Teleconverter retains full G Master performance, ensuring that image quality and autofocus capabilities of the attached lens remain intact. This is crucial for maintaining sharpness and detail, especially in fast-paced shooting situations.
Compatibility
The Canon RF28mm F2.8 STM Lens is designed specifically for full-frame EOS R series cameras, providing a versatile option for Canon users. It can also be used with APS-C cameras, offering an equivalent focal length of approximately 45mm. This dual compatibility makes it a practical choice for a broader range of photographers. On the other hand, the Sony FE 1.4x Teleconverter is compatible with select Sony E-mount lenses, specifically the SEL70200GM and SEL100400GM. This makes it a specialized accessory that enhances the functionality of existing lenses but limits its use to those specific models.
Price Considerations
The Canon RF28mm F2.8 STM Lens is priced at $299.00, making it an attractive option for photographers seeking quality without breaking the bank. Its average price over the past 90 days has been around $309.64, suggesting that it holds its value well in the market. In contrast, the Sony FE 1.4x Teleconverter is priced at $598.00, reflecting its specialized nature and advanced optical technology. This significant price difference of about $299 highlights the differing target audiences and use cases for each product.
Target Audience
The Canon RF28mm F2.8 STM Lens is ideal for casual photographers, travel enthusiasts, and content creators who value portability and versatility in their gear. Its lightweight and compact design makes it a perfect companion for those who want to capture everyday moments without the bulk of larger lenses. Conversely, the Sony FE 1.4x Teleconverter is aimed at professional photographers who require additional reach for specific types of photography, such as wildlife or sports. Its ability to enhance existing lenses makes it a valuable tool for those who already own compatible Sony equipment.
Which should you buy?
Choosing between the Canon RF28mm F2.8 STM Lens and the Sony FE 1.4x Teleconverter ultimately depends on your photography needs. If you are looking for a lightweight, versatile lens that excels in wide-angle photography, the Canon lens is a clear winner, especially at $299.00. However, if your focus is on extending the reach of your existing Sony lenses for wildlife or sports photography, the Sony teleconverter, priced at $598.00, offers specialized functionality that justifies its higher cost. Assess your requirements carefully to make the best decision for your photography style.

