S erounder vs 7artisans 7.
Updated July 2026 — S erounder wins on price and portability, 7artisans 7. wins on optics and weight.
The 7artisans 7.5mm F2.8 II offers superior optical performance and build quality, while the 37mm 0.25X Super Fisheye Lens is more affordable and portable.
Why S erounder is better
Price
More affordable at $52.35
Weight
Lighter at 228g
Macro Feature
Includes macro lens with 12.5x magnification
Why 7artisans 7. is better
Optical Quality
F2.8 aperture improves low-light performance
Build Quality
All-metal construction enhances durability
Versatility
Suitable for various photography styles and conditions
Overall score
Specifications
| Spec | S erounder | 7artisans 7. |
|---|---|---|
| Magnification | 0.25X | N/A |
| Aperture | N/A | F2.8 |
| Viewing Angle | N/A | 190° |
| Material | Aluminum Alloy | All Metal |
| Macro Feature | Yes | No |
Dimension comparison
Overview of the Products
In this comparison, we will look at the 37mm 0.25X Super Fisheye Lens Additional Lens and the 7artisans 7.5mm F2.8 II Fisheye Lens. The former is priced at $52.35, while the latter is more expensive at $139.00, making it about 17% cheaper than the 7artisans lens. Both products cater to photography enthusiasts looking for unique perspectives, but they have different features and specifications that may appeal to different users.
Design and Build Quality
The 37mm 0.25X Super Fisheye Lens features a sturdy aluminum alloy construction, ensuring durability and a long service life. It's lightweight, weighing approximately 228g, and comes with a storage bag, making it easily portable. In contrast, the 7artisans 7.5mm F2.8 II is also designed with a robust all-metal body, showcasing a compact size with a petal lens hood and electroplated bayonet. While both lenses emphasize durability, the 7artisans lens uses a combination of 9 groups and 11 elements in its optical design, enhancing image quality and reducing chromatic aberration. Thus, while the S erounder lens is designed for portability, the 7artisans lens leans towards professional-grade construction.
Compatibility
The 37mm 0.25X Super Fisheye Lens is compatible with cameras that have a 37mm lens mount. This makes it a versatile option for users with varying camera models that fit this specification. Conversely, the 7artisans 7.5mm F2.8 II is specifically designed for Sony E-mount cameras, including many models from the A7 series. This makes the 7artisans lens highly specialized, providing excellent performance for a particular brand but limiting its compatibility with other systems. If you're a Sony E-mount user, the 7artisans lens would seamlessly integrate into your photography setup.
Optical Performance
The optical performance of the 37mm 0.25X Super Fisheye Lens delivers a super fisheye effect with a magnification of 0.25X. This lens is designed for capturing wide-angle shots with a unique perspective but is less suited for conditions requiring high image quality. On the other hand, the 7artisans 7.5mm F2.8 II boasts a large aperture of F2.8, which allows more light to enter the lens, thereby improving image quality—especially in low-light conditions. Its 190-degree ultra-wide viewing angle is ideal for landscape photography, underwater shooting, and 360° VR panoramas. Therefore, while both lenses offer unique visual traits, the 7artisans lens is designed for superior optical performance.
Versatility in Photography
The 37mm 0.25X Super Fisheye Lens is marketed as suitable for special shooting occasions and specific angles, which can be great for creative photography but may limit versatility. Its macro lens feature, which provides a 12.5 times magnification effect, expands its usability for close-up shots. In contrast, the 7artisans 7.5mm F2.8 II is marketed as a versatile lens applicable in various scenarios, from landscapes to starry skies. This lens’s wide aperture and advanced optical design make it more adaptable for various photographic styles and genres, making it a better fit for photographers looking for a multi-purpose solution.
Portability
Portability is a significant factor for photographers on the go. The 37mm 0.25X Super Fisheye Lens weighs about 228g and includes a storage bag, making it easy to carry around for spontaneous shoots. Its small size and lightweight nature are ideal for travelers or those shooting in dynamic settings. While the 7artisans 7.5mm F2.8 II is also compact, its all-metal design may add some weight compared to the S erounder lens. However, it does not specify its weight, which can be a consideration for those prioritizing portability. Overall, the S erounder lens might have the edge for casual photographers seeking convenience.
Price Comparison
The price difference between the two lenses is significant: the 37mm 0.25X Super Fisheye Lens costs $52.35, while the 7artisans 7.5mm F2.8 II is priced at $139.00. This means the 7artisans lens is about 166% more expensive than the S erounder lens. For budget-conscious consumers or those new to photography, the S erounder lens offers a more accessible entry point into fisheye photography. However, if you're looking for advanced features and superior optical quality, the investment in the 7artisans lens may be justified.
User Experience and Customer Feedback
While specific sales ranks and customer feedback details are not provided, the features of each lens speak to their intended audiences. The 37mm 0.25X Super Fisheye Lens is likely appreciated by those seeking a fun, creative lens for casual photography. In contrast, the 7artisans 7.5mm F2.8 II, with its professional-grade specifications, would appeal to serious photographers needing reliable performance and flexibility in various shooting conditions.
Which should you buy?
Deciding between the 37mm 0.25X Super Fisheye Lens and the 7artisans 7.5mm F2.8 II depends largely on your photography needs and budget. If you are a casual photographer looking for an affordable and portable option, the S erounder lens is a solid choice at $52.35. However, if you are a serious photographer seeking superior optical performance and versatility, the 7artisans lens, priced at $139.00, would likely serve you better in the long run. Consider your camera compatibility, photography style, and budget to make the best choice for your needs.

