Tamron 17- vs YONGNUO
Updated July 2026 — Tamron 17- leads on price and focal length.
The Tamron lens offers superior versatility and optical performance, while the YONGNUO lens is a budget-friendly option for low-light photography.
Why Tamron 17- is better
Versatility
Tamron offers a zoom range of 17-70mm.
Optical Quality
Tamron has 16 elements for better image clarity.
Build Quality
Tamron features moisture-resistant construction.
Why YONGNUO is better
Price
YONGNUO is significantly cheaper at $128.
Low-Light
YONGNUO has a larger aperture of f/1.8.
Portability
YONGNUO is smaller and lighter.
Overall score
Specifications
| Spec | Tamron 17- | YONGNUO |
|---|---|---|
| Elements | 16 elements | 10 elements |
| Groups | 12 groups | 9 groups |
| Min Focus | 7.5 in | 0.35 m |
| Filter Size | 67 mm | 52 mm |
| Weather Seal | Yes | Yes |
Dimension comparison
Introduction to the Lenses
When it comes to selecting the right lens for your Sony E-mount mirrorless camera, the options can be overwhelming. In this comparison, we will explore the Tamron 17-70mm f/2.8 Di III-A VC RXD Lens and the YONGNUO 35MM F1.8 Art Auto Focus Lens. Priced at $599.00 and $128.00 respectively, these lenses cater to different photography needs and styles.
Design and Build Quality
The Tamron 17-70mm lens boasts a robust design with a moisture-resistant construction and a fluorine coating, making it suitable for various shooting conditions. This lens is also relatively lightweight, enhancing portability for photographers on the go. On the other hand, the YONGNUO 35MM lens features a metal outer shell and gold-plated contacts, ensuring durability. Additionally, it comes with a special waterproof membrane, which is particularly beneficial for outdoor photography. While both lenses prioritize durability, the Tamron offers more advanced weather resistance features.
Optical Performance
Optical performance is crucial for achieving high-quality images. The Tamron 17-70mm lens features 16 elements in 12 groups, including two glass molded aspherical lens elements and a hybrid aspherical lens element, enabling outstanding image clarity and minimal aberration. In contrast, the YONGNUO 35MM lens incorporates 10 elements in 9 groups, including two aspherical lenses designed to compensate for various aberrations. While both lenses deliver impressive optical performance, the Tamron’s design offers a broader range of focal lengths and superior image quality, particularly at different apertures.
Aperture and Low-Light Capability
When comparing aperture capabilities, the Tamron 17-70mm lens has a constant f/2.8 aperture, allowing for excellent low-light performance across its zoom range. This makes it versatile for various shooting scenarios, from landscapes to portraits. Conversely, the YONGNUO 35MM lens has a maximum aperture of f/1.8, which excels in low-light conditions and provides beautiful background bokeh. Thus, while the Tamron lens offers flexibility with its zoom range, the YONGNUO lens stands out for low-light photography and achieving a shallow depth of field.
Focusing Mechanism
The focusing mechanism can significantly impact your shooting experience. The Tamron lens features an upgraded VC (Vibration Compensation) system that enhances stability, especially for video shooting, by leveraging AI technology. This is particularly beneficial for videographers looking to capture smooth footage. Meanwhile, the YONGNUO 35MM lens employs a quiet auto-focus system, which is ideal for capturing candid moments without disturbing the subject. Both lenses provide effective focusing solutions, but the Tamron’s advanced stabilization features may give it an edge for video creators.
Price Comparison
Price is often a determining factor in lens selection. The Tamron 17-70mm lens is priced at $599.00, while the YONGNUO 35MM lens is significantly more affordable at $128.00. This means that the YONGNUO lens is about 79% cheaper than the Tamron lens, making it an attractive option for those on a budget or just starting in photography. However, the price difference also reflects the varying capabilities and features each lens offers.
Versatility and Use Cases
Versatility is key for photographers who need a lens that can handle multiple situations. The Tamron 17-70mm lens, with its wide zoom range from 17mm to 70mm, is ideal for everything from landscapes to portraits, making it a practical everyday lens. In contrast, the YONGNUO 35MM lens, being a prime lens, is best suited for specific scenarios, such as portraits or street photography, where a standard focal length is advantageous. Therefore, the choice between these lenses ultimately depends on your intended use and style of photography.
Which should you buy?
In conclusion, the choice between the Tamron 17-70mm f/2.8 and the YONGNUO 35MM F1.8 depends on your photography needs and budget. The Tamron lens offers versatility, advanced optical performance, and robust features ideal for a variety of situations, making it suitable for serious photographers. However, at a price point of $128.00, the YONGNUO lens provides excellent value for beginners or those looking for a dedicated prime lens for low-light photography. Ultimately, it boils down to whether you prioritize versatility and advanced features or affordability and specific use cases.

