SIRUI vs VILTROX
Updated July 2026 — SIRUI wins on weight and length, VILTROX wins on focal length.
The SIRUI 20mm T1.8 offers unique cinematic features, while the VILTROX 35mm f1.7 is a versatile and budget-friendly option.
Why SIRUI is better
Cinematic Features
The SIRUI lens provides a 1.33x squeeze factor for a cinematic look.
Low Light Performance
T1.8 aperture enhances low-light shooting capabilities.
Build Quality
Compact and lightweight design ideal for filmmakers.
Why VILTROX is better
Price
The VILTROX lens is significantly cheaper at $179.
Versatility
Suitable for various photography styles including portraits.
Close Focus
Minimum focusing distance of 0.33m allows for detailed close-ups.
Overall score
Specifications
| Spec | SIRUI | VILTROX |
|---|---|---|
| Autofocus | Yes | Yes |
| Optical Design | Anamorphic | 11 elements |
| Aspect Ratio | 2.35:1 | N/A |
| Compatibility | E Mount | X Mount |
| Bokeh | Soft | Beautiful |
Dimension comparison
Overview of the SIRUI 20mm T1.8 Anamorphic Lens
The SIRUI 20mm T1.8 Anamorphic Lens offers a unique cinematic experience thanks to its 1.33x squeeze factor. This lens is designed for E mount cameras, including models like the A6500 and A6700, and it retails for $599.00. It provides a wide 2.35:1 aspect ratio without cropping, making it ideal for filmmakers who want to capture expansive scenes with a cinematic touch. With features like selectable manual and autofocus, it caters to both professional and independent creators looking for versatility in their shooting styles.
Overview of the VILTROX 35mm f1.7 Fuji
The VILTROX 35mm f1.7 Fuji is a more budget-friendly option, priced at $179.00. This lens is compatible with Fujifilm X-mount cameras, including the X-T1 and X-T4. It features a bright f/1.7 aperture, which excels in low-light conditions and provides beautiful background bokeh, making it suitable for portrait and street photography. The lens is designed with an optimized optical layout, ensuring sharp image quality across various photography styles while maintaining a natural perspective akin to the human eye.
Price Comparison
When comparing prices, the SIRUI 20mm T1.8 Anamorphic Lens is significantly more expensive at $599.00, while the VILTROX 35mm f1.7 Fuji is priced at $179.00. This makes the VILTROX about 70% cheaper than the SIRUI lens. For photographers or filmmakers on a budget, the VILTROX lens offers substantial savings while still providing excellent functionality for everyday shooting needs. However, the SIRUI lens's price reflects its specialized features aimed at cinematic production, which may justify the higher cost for serious filmmakers.
Optical Performance
The SIRUI 20mm T1.8 boasts a 37mm image circle optimized for Super 35 sensors, delivering exceptional coverage and clarity. Its ultra-fast T1.8 aperture allows for enhanced low-light performance and depth of field control, crucial for cinematic visuals. In contrast, the VILTROX 35mm f1.7 utilizes an optical design with 11 elements in 9 groups, including high refractive and aspherical elements, to minimize distortion and chromatic aberrations. While both lenses provide excellent optical performance, the SIRUI's anamorphic capabilities give it an edge for filmmakers seeking a unique visual style.
Autofocus and Usability
The SIRUI 20mm T1.8 is equipped with a precision STM stepping motor, providing smooth, quiet, and accurate autofocus, complete with eye-tracking capabilities. This feature is particularly valuable for video creators who require quick and precise focus adjustments. The VILTROX 35mm f1.7 also features a new STM motor, delivering fast and near-silent autofocus, but it excels in minimizing focus breathing, which is crucial for video recordings. Both lenses cater to different user needs, with the SIRUI leaning more towards filmmakers while the VILTROX is well-suited for photographers.
Design and Build Quality
The SIRUI 20mm T1.8 is compact and lightweight, weighing in at just 480 grams, making it an excellent option for handheld shooting and gimbal use. Its design is tailored for those who prioritize mobility without sacrificing visual quality. The VILTROX 35mm f1.7 also boasts thoughtful design features, including an extended lens hood and a USB-C upgrade port for firmware updates. Both lenses are designed for ease of use, but the SIRUI's lightweight build may appeal more to filmmakers who frequently change locations or equipment.
Intended Use Cases
The SIRUI 20mm T1.8 is particularly suited for filmmakers seeking to achieve a cinematic look, making it ideal for shooting landscapes, tight indoor spaces, and expansive starry skies. Its wide field of view is perfect for capturing dramatic scenes. On the other hand, the VILTROX 35mm f1.7 is versatile for various photography styles, including portraits and street photography, thanks to its natural perspective and excellent low-light capabilities. Each lens serves its audience effectively, catering to different creative needs in the photography and videography realms.
Which should you buy?
Choosing between the SIRUI 20mm T1.8 Anamorphic Lens and the VILTROX 35mm f1.7 Fuji largely depends on your specific needs and budget. If you are a filmmaker looking for a lens that offers a unique cinematic experience and can justify the higher price of $599.00, the SIRUI is the better option for you. However, for photographers who need a reliable and versatile lens at a more approachable price of $179.00, the VILTROX is an excellent choice. Ultimately, the decision hinges on whether you prioritize cinematic features or a versatile everyday lens.

