Canon RF45mm F1.2 STM vs Sony FE
Updated July 2026 — Canon RF45mm F1.2 STM wins on price and aperture, Sony FE wins on autofocus and weight.
The Canon RF45mm F1.2 STM offers superior low-light performance and value, while the Sony FE 35mm f/1.8 excels in autofocus speed and portability.
Why Canon RF45mm F1.2 STM is better
Price
Canon is $329 cheaper than Sony.
Aperture
Canon has a larger f/1.2 aperture.
Bokeh
Canon creates more pronounced bokeh.
Why Sony FE is better
Autofocus
Sony has a faster autofocus system.
Weight
Sony is lighter and more portable.
Versatility
Sony is compatible with both full-frame and APS-C cameras.
Overall score
Specifications
| Spec | Canon RF45mm F1.2 STM | Sony FE |
|---|---|---|
| Brand | Canon | Sony |
| Aperture | f/1.2 | f/1.8 |
| Price | $469.00 | $798.00 |
| Weight | Lightweight | Compact |
| Focus Type | Manual/Auto | Auto |
Dimension comparison
Overview of the Canon RF45mm F1.2 STM and Sony FE 35mm f/1.8
The Canon RF45mm F1.2 STM is priced at $469.00, making it about 17% cheaper than the Sony FE 35mm f/1.8, which retails at $798.00. Both lenses cater to photographers seeking high-quality optics but differ significantly in specifications and intended use. The Canon lens features a larger aperture of f/1.2, while the Sony lens has a slightly smaller f/1.8 aperture. This comparison will delve into the features, performance, and value of each lens to help you decide which one suits your photography needs best.
Design and Build Quality
The Canon RF45mm F1.2 STM is designed to be compact and lightweight, featuring a large-diameter mount and a short back focus. This design allows for enhanced portability without compromising optical performance. On the other hand, the Sony FE 35mm f/1.8 is also compact and lightweight, setting a new standard for portability in its class. Both lenses are crafted with high-quality materials, ensuring durability and reliability during use. However, the Canon lens stands out with its advanced digital distortion correction, which helps to maintain image quality even when shooting at wide apertures.
Optical Performance
The optical performance of both lenses is impressive, but they serve slightly different purposes. The Canon RF45mm F1.2 STM boasts an f/1.2 aperture that allows for faster shutter speeds in low-light conditions and creates beautiful bokeh, isolating subjects from the background effectively. Its use of a PMo aspheric lens minimizes aberrations, enhancing the overall image quality. Meanwhile, the Sony FE 35mm f/1.8, with its 9-blade circular aperture, also delivers stunning bokeh and sharp images. The aspherical element in the Sony lens works to suppress aberration, ensuring high-resolution results. Depending on your requirements for depth of field and low-light performance, either lens could excel in different scenarios.
Autofocus Capabilities
When it comes to autofocus performance, the Sony FE 35mm f/1.8 has an edge with its fast, precise, and quiet linear-motor autofocus system. This feature is particularly beneficial for videographers and those who need to capture moving subjects without distracting noise. The Canon RF45mm F1.2 STM, while not explicitly mentioned for autofocus speed, is designed for optimal performance, allowing for quick adjustments in various shooting conditions. The autofocus capabilities of both lenses will meet the needs of most photographers, but those prioritizing silent operation may prefer the Sony.
Versatility
The Canon RF45mm F1.2 STM is an excellent choice for creators looking to capture portraits, lifestyle content, or everyday narratives. Its wide aperture allows for a three-dimensional look in images, enhancing the storytelling aspect of photography. Conversely, the Sony FE 35mm f/1.8 is versatile for both full-frame and APS-C cameras, making it a suitable choice for a broad range of applications, from street photography to landscapes. While both lenses are versatile, the Canon lens may provide an edge in creative portrait work due to its wider aperture.
Price and Value
At $469.00, the Canon RF45mm F1.2 STM offers considerable value for those seeking a high-performance lens without breaking the bank. In contrast, the Sony FE 35mm f/1.8 is priced at $798.00, which may deter some budget-conscious photographers. The price difference of approximately $329 makes the Canon lens an attractive option for those looking to invest in quality optics at a lower cost. While the Sony lens has its own advantages, the Canon lens provides excellent quality for its price point, making it a compelling choice for many photographers.
Target Audience
The Canon RF45mm F1.2 STM is ideally suited for professional photographers and enthusiasts who prioritize image quality and low-light performance. Its features cater to those who want to create striking portraits and visually compelling stories. On the other hand, the Sony FE 35mm f/1.8 is targeted at a broader audience, including casual photographers and videographers who value portability and versatility. Each lens serves its own unique audience, and the choice will largely depend on specific needs and preferences.
Which should you buy?
Choosing between the Canon RF45mm F1.2 STM and the Sony FE 35mm f/1.8 ultimately depends on your photography style and budget. If you are looking for a high-quality lens with exceptional low-light performance at a more affordable price, the Canon lens is the better choice at $469.00. However, if you prefer a lightweight lens with fast autofocus capabilities and are willing to invest in it, the Sony lens priced at $798.00 may be more suitable for your needs. Both lenses offer unique advantages, so consider your shooting requirements carefully before making a decision.

