SIRUI vs VILTROX
Updated July 2026 — SIRUI wins on weight and length, VILTROX wins on field of view and aperture.
The SIRUI 20mm T1.8 offers superior optical performance and features for filmmakers, while the VILTROX 14mm f4.0 is a budget-friendly, lightweight option for casual users.
Why SIRUI is better
Optical Quality
SIRUI has a faster aperture for low-light performance
Cinematic Features
SIRUI offers anamorphic design for cinematic visuals
Build Quality
SIRUI is designed for professional use with robust construction
Why VILTROX is better
Price
VILTROX is significantly cheaper
Weight
VILTROX is much lighter for portability
Versatility
VILTROX is suitable for a wider range of casual photography
Overall score
Specifications
| Spec | SIRUI | VILTROX |
|---|---|---|
| Focal Length | 20mm | 14mm |
| Max Aperture | T1.8 | f/4.0 |
| Autofocus | Yes | Yes |
| Image Circle | Super 35 | Full Frame |
| Construction | Robust | Compact |
Dimension comparison
Overview of the SIRUI 20mm T1.8 and VILTROX 14mm f4.0
The SIRUI 20mm T1.8 and VILTROX 14mm f4.0 are both excellent choices for photographers and videographers, each catering to different needs. The SIRUI lens is priced at $599.00, while the VILTROX lens is significantly cheaper at $199.00, making it about 67% less expensive. This price difference reflects the unique features and capabilities of each lens, offering distinct advantages depending on the user's requirements.
Design and Build Quality
The SIRUI 20mm T1.8 is designed with a robust build that caters to professional filmmakers and photographers, weighing 480g, which is relatively lightweight for an anamorphic lens. It features a 1.33x squeeze factor that enhances the cinematic quality of images, producing a 2.35:1 widescreen ratio without cropping. In contrast, the VILTROX 14mm f4.0 is notably lighter at just 170g, making it highly portable for on-the-go shooting. Its compact design suits casual photographers and videographers who prioritize mobility without sacrificing image quality.
Optical Performance
When it comes to optical performance, the SIRUI 20mm T1.8 promises a stunning visual experience with its ultra-fast T1.8 aperture, allowing for excellent low-light performance and depth of field control. This lens covers Super 35 sensors, ensuring high image clarity. On the other hand, the VILTROX 14mm f4.0 features a complex optical design with 12 elements in 9 groups, including 2 High Refractive and 4 Extra-low Dispersion elements, ensuring minimal chromatic aberrations. While the SIRUI excels in low-light conditions, the VILTROX is designed for expansive landscapes and architectural photography.
Autofocus Capabilities
The autofocus capabilities of these two lenses cater to different shooting styles. The SIRUI 20mm T1.8 employs a precision STM stepping motor that provides smooth, accurate, and quiet autofocus, complete with eye-tracking and an AF/MF switch. This makes it ideal for video work where sound can be crucial. Conversely, the VILTROX 14mm f4.0 also features an STM motor for fast autofocus, but it is particularly designed for quick transitions, making it versatile for both photography and video. Both lenses offer reliable autofocus, but the SIRUI has advanced features that better serve cinematographers.
Versatility and Use Cases
The SIRUI 20mm T1.8 is particularly versatile for filmmakers, thanks to its anamorphic design, which is excellent for creating cinematic visuals and capturing expansive scenes. Its 20mm focal length translates to a wider perspective suitable for various genres, including landscapes and indoor settings. The VILTROX 14mm f4.0, with its 14mm field of view, provides a broader angle, making it perfect for capturing epic landscapes and architectural details as well as creative astrophotography. The choice between them largely depends on whether the user prioritizes cinematic quality or a broader field of view.
Weight and Portability
Portability is a significant factor for many photographers and videographers. The VILTROX 14mm f4.0, at only 170g, is geared towards those who need a lightweight lens for travel or street photography. Its compact design allows it to be easily carried in a camera bag without adding much bulk. In contrast, while the SIRUI 20mm T1.8 is still relatively lightweight at 480g, it is less portable than the VILTROX. The additional weight may be a consideration for those who prioritize ease of transport in their gear.
Price Comparison
The SIRUI 20mm T1.8 is priced at $599.00, while the VILTROX 14mm f4.0 costs $199.00. This price difference of $400 highlights the premium nature of the SIRUI lens, which offers advanced features and higher optical quality suited for professional use. The VILTROX lens, being about 67% cheaper, is an attractive option for budget-conscious consumers or those just starting in photography who still want a quality lens for wide-angle shots. The significant cost difference means users have to weigh their budget against the features they need most.
Which should you buy?
Choosing between the SIRUI 20mm T1.8 and the VILTROX 14mm f4.0 ultimately depends on your specific needs and budget. If you are a professional filmmaker looking for high-quality, cinematic visuals and don’t mind spending extra, the SIRUI lens is a worthy investment. However, if you are a hobbyist or someone who values portability and affordability while still wanting excellent performance, the VILTROX lens presents a compelling option. Each lens has its strengths, and understanding your shooting style will guide you to the right choice.

