7artisans 7. vs Sigma
Updated July 2026 — 7artisans 7. wins on build, Sigma wins on aperture and price.
The Sigma lens offers superior low-light performance and image quality, while the 7artisans lens is a budget-friendly option for creative photography.
Why 7artisans 7. is better
Price
7artisans lens is significantly cheaper at $139.
Wide Angle
190° ultra-wide angle for creative shots.
Build Quality
All-metal body enhances durability.
Why Sigma is better
Aperture
F1.4 allows for better low-light performance.
Image Quality
Advanced optical design provides sharper images.
Versatility
Better for portraits and general photography.
Overall score
Specifications
| Spec | 7artisans 7. | Sigma |
|---|---|---|
| Focal Length | 7.5mm | 30mm |
| Max Aperture | F2.8 | F1.4 |
| Lens Type | Fisheye | Prime |
| Elements | 11 | 9 |
| Weight | 300g | 265g |
Dimension comparison
Overview of the Products
When it comes to selecting a camera lens for Sony E-mount cameras, the 7artisans 7.5mm F2.8 II Fisheye Lens and the Sigma 30mm F1.4 Contemporary DC DN Lens each offer unique features suited for different photographic needs. The 7artisans fisheye lens is priced at $139.00, while the Sigma lens commands a higher price of $419.00, making it about 17% cheaper than its competitor. Understanding these differences will help you choose the right lens for your photography style.
Lens Type and Use Cases
The 7artisans 7.5mm F2.8 II is a fisheye lens that provides a 190° ultra-wide viewing angle, making it ideal for landscape photography, 360° VR panoramas, and creative underwater shots. Its unique perspective allows for dramatic imagery that can capture more of the scene than standard lenses. Conversely, the Sigma 30mm F1.4 is a standard prime lens that excels in low-light conditions, thanks to its wide aperture of F1.4. This makes it suitable for portraits, street photography, and any scenario where depth of field is essential. Each lens serves distinct photographic purposes, catering to varying creative preferences.
Build Quality and Design
The construction of the 7artisans lens includes a robust all-metal body with a petal lens hood, designed for durability and aesthetic appeal. It features a compact size that enhances portability, ideal for travel photographers. On the other hand, the Sigma lens combines modern design with practical functionality, featuring a compact build that is lightweight and easy to handle. Both lenses include protective accessories like lens hoods, but the material and design philosophy differ, reflecting their respective brands’ approaches to lens construction.
Aperture and Light Performance
The 7artisans lens has a maximum aperture of F2.8, enabling photographers to capture brighter images in various lighting conditions, though not as effectively as the Sigma lens. The Sigma’s F1.4 aperture allows for more light entry, making it more capable in low-light situations. This is particularly beneficial for users who frequently shoot indoors or at dusk. In terms of light performance, the Sigma lens offers a clear advantage, allowing for faster shutter speeds and better image quality in challenging lighting.
Image Quality and Optical Design
The 7artisans 7.5mm F2.8 II features a sophisticated optical design with 9 groups and 11 elements, including enhanced HOYA lenses and two ED elements to minimize chromatic aberration. This design significantly improves image quality, particularly at the edges of the frame, making it excellent for wide-angle photography. The Sigma lens, while having fewer elements, is renowned for its high-quality image output due to its advanced optical engineering. Both lenses are designed to deliver sharp images, but the Sigma's larger aperture and advanced design may give it an edge in overall image quality.
Compatibility with Camera Systems
Both the 7artisans and Sigma lenses are compatible with a range of Sony E-mount cameras, including the popular A7 series. The 7artisans lens is specifically noted for its compatibility with various older and newer models, including the A7, A6500, and NEX series. The Sigma lens also supports a broad range of Sony cameras, but its focus on APS-C mirrorless models makes it particularly suitable for users of those systems. Compatibility is crucial for ensuring optimal performance, and both lenses meet diverse user needs.
Price Considerations
The price difference between the two lenses is significant, with the 7artisans lens retailing for $139.00, while the Sigma lens is priced at $419.00. This means the Sigma is over three times the cost of the 7artisans lens. While the higher price of the Sigma lens may reflect its advanced features and superior aperture capabilities, the affordability of the 7artisans lens makes it an attractive option for budget-conscious photographers or those just starting in photography.
Which should you buy?
In summary, choosing between the 7artisans 7.5mm F2.8 II Fisheye Lens and the Sigma 30mm F1.4 Contemporary DC DN Lens depends largely on your specific photography needs. If you're looking for an affordable, ultra-wide angle lens that excels in creative and landscape photography, the 7artisans lens is a fantastic choice at $139.00. However, if you require superior low-light performance and higher image quality for portraits and general photography, investing in the Sigma lens at $419.00 may be worth it. Ultimately, both lenses have their strengths, and your decision should align with your photographic style and budget.

