Sigma 10- vs TTArtisan
Updated July 2026 — Sigma 10- wins on weight and size, TTArtisan wins on price and autofocus.
The Sigma 10-18mm F2.8 DC DN excels in ultra-wide-angle capabilities, while the TTArtisan 40mm F2 L offers excellent low-light performance at a much lower price.
Why Sigma 10- is better
Wide Angle
Sigma offers ultra-wide-angle zoom capabilities.
Build Quality
Sigma is the smallest and lightest in its category.
Versatility
Sigma is ideal for landscapes and video content.
Why TTArtisan is better
Price
TTArtisan is significantly cheaper.
Aperture
TTArtisan has a larger maximum aperture.
Autofocus
TTArtisan features quiet and fast autofocus.
Overall score
Specifications
| Spec | Sigma 10- | TTArtisan |
|---|---|---|
| Focal Length | 10-18mm | 40mm |
| Max Aperture | F2.8 | F2.0 |
| Weight | Lightest | 167-176g |
| Autofocus Type | Not Specified | STM |
| Ideal Use | Landscapes | Street |
Dimension comparison
Overview of the 10-18mm F2.8 DC DN and TTArtisan 40mm F2 L
When comparing the 10-18mm F2.8 DC DN and the TTArtisan 40mm F2 L, the most notable difference is their intended use and focal length. The Sigma 10-18mm F2.8 DC DN is an ultra-wide-angle zoom lens ideal for landscapes, travel, and video content, while the TTArtisan 40mm F2 L offers a versatile standard focal length suited for street, travel, and everyday photography. The Sigma lens is priced at $679.00, significantly higher than the TTArtisan, which retails for $168.00, making it about 75% cheaper.
Design and Build Quality
In terms of design, the Sigma 10-18mm F2.8 DC DN is touted as the world's smallest and lightest ultra-wide-angle zoom lens for APS-C cameras. Its compactness makes it a convenient choice for traveling photographers. On the other hand, the TTArtisan 40mm F2 L weighs between 167g to 176g, emphasizing portability as well. Both lenses are designed for ease of use, but the Sigma's claim of being the lightest adds an edge for photographers who prioritize minimal weight in their gear.
Aperture and Light Performance
The Sigma 10-18mm F2.8 DC DN features a constant aperture of F2.8, which is beneficial for achieving adequate exposure in various lighting conditions. This allows for expressive imaging capabilities, especially in low-light scenarios. Conversely, the TTArtisan 40mm F2 L boasts a larger aperture of F2.0, which lets in more light, making it ideal for faster shutter speeds and better performance in low-light situations. The difference in maximum aperture gives the TTArtisan a slight advantage for low-light photography.
Autofocus Capabilities
When it comes to autofocus, the TTArtisan 40mm F2 L is equipped with an STM stepping motor that provides quiet and fast autofocus, allowing for quick and precise focusing. This feature is particularly advantageous for capturing spontaneous moments without noise distractions. In contrast, the Sigma 10-18mm F2.8 DC DN does not specify its autofocus capabilities, which may indicate that it relies on a more traditional autofocus system. For videographers and wildlife photographers, the TTArtisan's silent operation is a significant benefit.
Image Quality and Distortion Control
The TTArtisan 40mm F2 L emphasizes excellent image quality through the combination of ED and aspherical elements, effectively controlling chromatic aberration while maintaining clarity. This can be crucial for photographers who demand sharpness and detail. Meanwhile, while the Sigma 10-18mm F2.8 DC DN is designed for expressive imaging, it does not provide specific details regarding its optical construction. Users may want to consider how important image quality is relative to their shooting style when choosing between these two lenses.
Intended Use and Versatility
The Sigma 10-18mm F2.8 DC DN is specifically designed for landscapes, travel, and video content creation, making it a specialized choice for those genres. Its ultra-wide-angle capability allows for dramatic perspectives and expansive scenery. In contrast, the TTArtisan 40mm F2 L is marketed as a versatile lens suitable for street photography, documentaries, and everyday shots. Its 40mm focal length allows for a balance between environmental context and subject isolation, appealing to a broader range of photography styles.
Price Comparison
The Sigma 10-18mm F2.8 DC DN is priced at $679.00, while the TTArtisan 40mm F2 L is significantly more affordable at $168.00. This represents a price difference of about $511, making the TTArtisan 75% cheaper than the Sigma lens. For those on a budget or looking for a cost-effective option without sacrificing quality, the TTArtisan offers excellent value, particularly for beginners or casual photographers.
Which should you buy?
The decision between the Sigma 10-18mm F2.8 DC DN and the TTArtisan 40mm F2 L ultimately hinges on your specific photography needs. If you require an ultra-wide-angle lens for landscapes and video, the Sigma is an exceptional choice with its compact design and wide aperture. However, if you're seeking a versatile, budget-friendly lens for street photography and everyday use, the TTArtisan is a solid option with excellent low-light performance. Each lens has its strengths, so consider your style and budget before making a purchase.

