Sigma 18- vs TTARTISAN
Updated July 2026 — Sigma 18- wins on versatility and build quality, TTARTISAN wins on price and weight.
The Sigma 18-50mm offers superior versatility and optical performance, while the TTARTISAN 40mm provides excellent value and portability.
Why Sigma 18- is better
Versatility
Sigma offers a zoom range of 18-50mm.
Optical Quality
Sigma is known for superb optical performance.
Advanced Features
Sigma includes in-camera aberration correction.
Why TTARTISAN is better
Price
TTARTISAN is significantly cheaper at $168.
Weight
TTARTISAN weighs only 167g.
Low Light Performance
TTARTISAN excels in low-light conditions with f/2 aperture.
Overall score
Specifications
| Spec | Sigma 18- | TTARTISAN |
|---|---|---|
| Focal Length | 18-50mm | 40mm |
| Aperture | f/2.8 | f/2 |
| Mount Type | E Mount | Z Mount |
| Weight | 290g | 167g |
| Price | $587.00 | $168.00 |
| Optical Quality | Superb | Good |
Dimension comparison
Overview of the Sigma 18-50mm F2.8 DC DN Contemporary
The Sigma 18-50mm F2.8 DC DN Contemporary is a versatile lens designed specifically for Sony E mount cameras. Priced at $587.00, this lens offers a flexible focal range and exceptional optical performance. Its compact size makes it suitable for a variety of shooting scenarios, whether you're capturing landscapes or portraits.
This lens boasts features like in-camera aberration correction and the latest optical technologies, ensuring superb image quality. With its small and lightweight design, photographers can easily carry it on their adventures, making it a popular choice among enthusiasts and professionals alike.
Overview of the TTARTISAN 40mm f2 Lens for Z Mount
The TTARTISAN 40mm f2 Lens for Z Mount is an ultra-portable option priced at $168.00, making it about 71% cheaper than the Sigma lens. Designed for Nikon Z-mount cameras, this lens offers a prime focal length ideal for capturing true-to-life perspectives.
Weighing only 167 grams, its metal build from premium aerospace aluminum ensures durability without adding bulk to your gear. Perfect for low-light conditions, the lens's f/2 aperture allows for stunning clarity and vibrant color reproduction, making it an excellent tool for both photography and videography.
Image Quality Comparison
When it comes to image quality, both lenses have distinct advantages. The Sigma 18-50mm F2.8 is renowned for its superb optical quality, allowing for professional-grade results. Its versatile focal length enables photographers to capture a variety of scenes with clarity and detail.
Conversely, the TTARTISAN 40mm f2 excels in low-light situations due to its bright f/2 aperture. This feature allows for optimal performance in challenging lighting, delivering vivid colors and sharp details. While the Sigma lens offers a broader range of focal lengths, the TTARTISAN provides enhanced depth in its specific 40mm perspective, making it ideal for portrait and street photography.
Build Quality and Design
The build quality and design differ significantly between the two lenses. The Sigma 18-50mm lens is designed to be compact and lightweight, making it convenient for travel. Its construction is geared towards maximizing optical performance while maintaining a manageable size.
On the other hand, the TTARTISAN 40mm f2 boasts a durable metal build, crafted from 5052 aerospace aluminum. This design not only enhances its durability but also ensures that it remains lightweight at 167 grams. The tactile, click-stop aperture ring allows for precise adjustments, which can be a significant advantage when shooting in various conditions.
Autofocus and Usability
The Sigma 18-50mm F2.8 features advanced autofocus capabilities suitable for both stills and video work. Its autofocus system is quick and reliable, making it a great choice for dynamic shooting environments.
In contrast, the TTARTISAN 40mm f2 also incorporates advanced autofocus performance with features like STM motor and face/eye tracking. These characteristics ensure smooth focus transitions, particularly beneficial for video creators and portrait photographers. The ease of use in both lenses caters to different user preferences, depending on whether one prioritizes versatility or the specific characteristics of a prime lens.
Price and Value for Money
The Sigma 18-50mm F2.8 DC DN Contemporary is priced at $587.00, offering robust features and performance for serious photographers. However, the TTARTISAN 40mm f2 lens is priced at $168.00, making it a budget-friendly option without sacrificing quality.
At about 71% less than the Sigma, the TTARTISAN offers great value, especially for those who want a reliable lens for everyday use. While the Sigma lens provides versatility with its zoom capabilities, the TTARTISAN lens excels in providing quality at an accessible price point.
Target Audience
The Sigma 18-50mm F2.8 is targeted at photographers who seek versatility and top-notch optical performance, making it ideal for professionals and serious enthusiasts. Its adaptable focal range is perfect for various situations, from portraits to landscapes.
On the other hand, the TTARTISAN 40mm f2 is great for casual shooters and those who prioritize portability and affordability. Its compact design appeals to travel photographers and vloggers who need a lightweight yet effective lens for everyday shooting needs.
Which should you buy?
Choosing between the Sigma 18-50mm F2.8 DC DN Contemporary and the TTARTISAN 40mm f2 lens ultimately depends on your photographic needs and budget. If you require a versatile lens with a broad focal range and superior optical quality, the Sigma is the way to go, despite its higher price of $587.00.
However, if you're looking for an affordable, lightweight option that delivers quality images, especially in low light, the TTARTISAN 40mm f2 lens at $168.00 offers excellent value. Both lenses have their unique strengths, so consider your shooting style and budget before making a decision.