S erounder vs Canon RF16mm F2.8 STM Lens
Updated July 2026 — S erounder wins on weight and focal length, Canon RF16mm F2.8 STM Lens wins on price and aperture.
The Canon RF16mm F2.8 STM Lens offers superior image quality and versatility compared to the 37mm 0.25X Super Fisheye Lens. For serious photographers, the Canon lens is the better choice.
Why S erounder is better
Price
The 37mm lens is significantly cheaper at $52.35.
Weight
The 37mm lens is lightweight and easy to carry.
Macro Feature
The 37mm lens offers a macro shooting option.
Why Canon RF16mm F2.8 STM Lens is better
Image Quality
The Canon lens has a bright f/2.8 aperture for better low-light performance.
Versatility
The Canon lens is suitable for a wider range of photography styles.
Autofocus
The Canon lens features smooth and quiet autofocus for video.
Overall score
Specifications
| Spec | S erounder | Canon RF16mm F2.8 STM Lens |
|---|---|---|
| Material | Aluminum Alloy | Plastic & Glass |
| Compatibility | 37mm Cameras | EOS R Series |
| Max Aperture | 0.25X | f/2.8 |
| Macro Mode | Yes | No |
| Autofocus | No | Yes |
Dimension comparison
Overview
In the world of camera lenses, the 37mm 0.25X Super Fisheye Lens Additional Lens and the Canon RF16mm F2.8 STM Lens present two distinct options for photographers. The former is designed primarily for fisheye effects and macro photography, while the latter is a compact ultra-wide-angle lens suitable for a variety of shooting situations. With the 37mm lens priced at $52.35 and the Canon lens at $259.00, the price difference is significant, with the Canon lens being about 394% more expensive.
Image Quality
When it comes to image quality, the Canon RF16mm F2.8 STM Lens stands out with its high image quality and bright f/2.8 maximum aperture. This allows for excellent performance in various lighting conditions, making it a versatile choice for both landscape and interior photography. On the other hand, the 37mm 0.25X Super Fisheye Lens offers a unique fisheye effect, extending the picture range dramatically, but it may not achieve the same level of sharpness, especially in standard photography scenarios. Thus, if top-notch image quality is your priority, the Canon lens is the clear winner.
Versatility
The Canon RF16mm F2.8 STM Lens excels in versatility, designed for use with EOS R series mirrorless cameras. Its ultra-wide angle and a minimum focusing distance of just 5.11 inches make it suitable for various photography styles, including landscapes and vlogging. Conversely, the 37mm 0.25X Super Fisheye Lens, while effective for specific effects and macro shooting, is limited to 37mm caliber cameras and may not serve as a general-purpose lens. Hence, for photographers looking for a multi-functional lens, the Canon option is undoubtedly more versatile.
Construction and Design
In terms of construction, the 37mm 0.25X Super Fisheye Lens is made from high-quality aluminum alloy and optical glass, granting it a sturdy build and a long service life. It is lightweight and compact, making it easy to carry and store with its included storage bag. The Canon RF16mm F2.8 STM Lens also boasts a compact design, being supremely lightweight for an ultra-wide lens, which is an advantage for travel and on-the-go shooting. Both lenses offer solid construction, but the materials used in the Canon lens contribute to its professional feel and performance.
Special Features
The 37mm 0.25X Super Fisheye Lens includes unique features such as the ability to divide into two parts for macro photography, achieving a 12.5 times magnification effect. This feature is particularly appealing for those interested in close-up photography. In contrast, the Canon RF16mm F2.8 STM Lens is equipped with a stepping motor for smooth and quiet autofocus, making it ideal for video recording. Each lens offers special features that cater to different photography needs; however, if video is a consideration, the Canon lens provides an edge.
Target Audience
The target audience for the 37mm 0.25X Super Fisheye Lens includes hobbyists and casual photographers looking to experiment with fisheye effects and macro shots. Its price point of $52.35 makes it accessible for those on a budget. On the other hand, the Canon RF16mm F2.8 STM Lens is aimed at serious photographers and vloggers seeking a high-quality ultra-wide-angle lens, reflected in its higher price of $259.00. Therefore, the choice largely depends on the level of commitment and the type of photography the user intends to pursue.
Price Comparison
The 37mm 0.25X Super Fisheye Lens is priced at $52.35, which is significantly lower than the Canon RF16mm F2.8 STM Lens, priced at $259.00. This results in a price difference of about $206.65, making the Canon lens about 394% more expensive. For photographers on a tight budget or those just starting, the affordability of the 37mm lens is certainly appealing. However, more advanced users may find that the investment in the Canon lens is justified given its superior features and performance.
Which should you buy?
Ultimately, the choice between the 37mm 0.25X Super Fisheye Lens and the Canon RF16mm F2.8 STM Lens boils down to your photography needs and budget. If you are looking for an affordable option to experiment with fisheye effects and macro photography, the 37mm lens is an excellent choice. However, if you require a high-quality lens for versatile shooting, including landscapes and video, the Canon lens offers superior performance and features that justify its higher price. Thus, for serious photographers, the Canon RF16mm F2.8 STM Lens is the recommended option, while casual users may prefer the cost-effective 37mm fisheye lens.

