Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens vs AOM Sony SELP1650 16-
Updated July 2026 — Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens wins on price and focal length, AOM Sony SELP1650 16- wins on aperture.
The Canon RF50mm F1.8 STM Lens excels in low-light performance and optical quality, while the Sony SELP1650 offers versatility and a lower price. Choose based on your specific photography needs.
Why Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens is better
Low Light
Canon has a larger aperture for better low-light performance.
Optical Quality
Canon lens minimizes ghosting and flare.
Bokeh
Canon produces superior background blur.
Why AOM Sony SELP1650 16- is better
Price
Sony is approximately 9% cheaper.
Zoom Range
Sony offers a versatile 16-50mm zoom.
Compact Design
Sony's retractable design is more travel-friendly.
Overall score
Specifications
| Spec | Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens | AOM Sony SELP1650 16- |
|---|---|---|
| Max Aperture | f/1.8 | f/3.5-5.6 |
| Focal Length | 50mm | 16-50mm |
| Stabilization | No | Yes |
| Weight | 0.5 lbs | 0.4 lbs |
| Compatibility | EOS R | Sony E-mount |
Dimension comparison
Overview of the Canon RF50mm F1.8 STM Lens
The Canon RF50mm F1.8 STM Lens is priced at $219.00, making it a solid investment for EOS R series camera users. This lens is compact and lightweight, designed specifically for mirrorless cameras, providing a 50mm fixed focal length that excels in various photography scenarios, from portraits to landscapes. The large f/1.8 aperture allows for exceptional low-light performance and beautiful background blur, enhancing creative photography.
In addition to its impressive optical capabilities, the Canon RF50mm F1.8 STM features a Stepping Motor for smooth and quiet autofocus, which is particularly beneficial during video recording. The lens is optimized to minimize ghosting and flare, ensuring vibrant and balanced color reproduction. For photographers seeking versatility and quality, this lens is a reliable choice.
Overview of the Sony SELP1650 16-50mm OSS Lens
The Sony SELP1650 16-50mm OSS Lens is available for $199.96, making it about 9% cheaper than the Canon RF50mm. This lens offers a versatile zoom range of 16-50mm, which translates to a 24-75mm equivalent in 35mm terms, making it suitable for a wide range of photography styles from landscapes to close-ups. The lens also features Optical SteadyShot image stabilization, enhancing image clarity, especially in low-light conditions.
The retractable design of the Sony SELP1650 makes it convenient for travel, and the internal focus mechanism ensures that the lens remains compact when not in use. Additionally, it includes a seven-blade circular diaphragm that contributes to aesthetically pleasing bokeh, making it a great option for creative shots. This lens is bundled with a Pro Starter Kit, enhancing its value for new photographers.
Lens Design and Build Quality
When it comes to design and build quality, the Canon RF50mm F1.8 STM is compact and lightweight, making it an ideal companion for the EOS R series cameras. Its fixed focal length encourages creative composition and is easy to carry around for spontaneous shooting. The lens is optimized with advanced coatings to minimize flare and ghosting, providing excellent optical performance in various lighting conditions.
In contrast, the Sony SELP1650 features a retractable design, allowing it to maintain a slim profile when not in use. This feature is particularly useful for photographers on the go, as it can easily fit into a camera bag without taking up much space. While both lenses are built to cater to their respective systems, the Canon’s design emphasizes optical excellence, while the Sony prioritizes convenience and versatility.
Performance in Low Light
The Canon RF50mm F1.8 STM excels in low-light situations, thanks to its large f/1.8 aperture. This feature allows for sufficient light to enter the lens, aiding in the capture of clear, vibrant images even in challenging conditions. Photographers will appreciate the lens's ability to produce sharp images with beautiful bokeh, making it ideal for portrait photography.
On the other hand, the Sony SELP1650, with its f/3.5-5.6 aperture range, is less capable in low-light environments compared to the Canon. While it does feature Optical SteadyShot image stabilization, which can help mitigate camera shake, the lens's smaller maximum aperture means it may struggle to achieve the same level of brightness and clarity in dimly lit settings. For low-light enthusiasts, the Canon lens is likely the better choice.
Autofocus Capabilities
The Canon RF50mm F1.8 STM boasts a Stepping Motor that provides smooth and quiet autofocus, making it particularly advantageous for video recording. This feature ensures that focus transitions are seamless and unobtrusive, enhancing the overall quality of video content. The lens's autofocus performance is further complemented by its optical design, which minimizes focus breathing during adjustments.
Conversely, the Sony SELP1650 also incorporates a power zoom mechanism, allowing for a smooth zoom experience while maintaining focus. However, it may not match the precision and quietness of the Canon's autofocus system. For users who prioritize video work or require fast and reliable autofocus in still photography, the Canon lens offers a more specialized solution.
Compatibility and Versatility
The Canon RF50mm F1.8 STM is specifically designed for the EOS R series mirrorless cameras, ensuring optimal performance and seamless integration with these systems. This lens is versatile enough for various types of photography, from portraits to landscapes, making it a reliable choice for photographers looking to explore different styles.
In comparison, the Sony SELP1650 is compatible with a wider range of Sony E-mount cameras, including several Alpha models and NEX series. This broad compatibility allows it to cater to a diverse audience of photographers. Its zoom range further enhances its versatility, allowing users to adapt to different shooting scenarios quickly. While both lenses have their strengths, the Canon lens excels in fixed focal length creativity, while the Sony offers broader adaptability.
Price Comparison
The Canon RF50mm F1.8 STM is priced at $219.00, while the Sony SELP1650 is slightly more affordable at $199.96. This makes the Sony lens about 9% cheaper, which could be a deciding factor for budget-conscious buyers. However, the price difference is marginal, and potential buyers should consider the specific features and performance of each lens to determine which offers better value for their needs.
While the Canon lens is priced higher, it offers superior low-light capabilities and a specialized design for portraiture and creative photography. The Sony lens, though less expensive, provides versatile zoom functionality and is ideal for users who prioritize a broader range of shooting options. Ultimately, the choice may come down to the specific photography requirements of the user.
Which should you buy?
In conclusion, choosing between the Canon RF50mm F1.8 STM and the Sony SELP1650 16-50mm OSS Lens largely depends on your specific photography needs. If you are an EOS R series user seeking a lens that excels in low light and offers beautiful bokeh, the Canon RF50mm is the superior option. Its fixed focal length encourages creativity and delivers exceptional optical performance.
However, if you require a versatile zoom lens that is more affordable and compact, the Sony SELP1650 may be the better fit. Its compatibility with a wide range of Sony cameras, combined with its retractable design, makes it a practical choice for everyday photography. Ultimately, both lenses have their merits, and your decision should align with your photography style and budget.

