Sony FE 1.4x Teleconverter vs VILTROX
Updated July 2026 — Sony FE 1.4x Teleconverter wins on price and build, VILTROX wins on weight.
The Sony FE 1.4x Teleconverter excels in optical performance and versatility, while the VILTROX 56mm F1.7 offers a more affordable option for Fujifilm users.
Why Sony FE 1.4x Teleconverter is better
Optical Performance
Maintains full lens performance with 1.4x extension.
Build Quality
Dust and moisture resistant design.
Versatility
Compatible with multiple Sony lenses.
Why VILTROX is better
Price
Significantly cheaper at $180.
Weight
Lightweight design at 171g.
Aperture
Bright f/1.7 maximum aperture.
Overall score
Specifications
| Spec | Sony FE 1.4x Teleconverter | VILTROX |
|---|---|---|
| Max Aperture | f/2.8 | f/1.7 |
| Focal Length | Varies | 56mm |
| Compatibility | Sony E-mount | Fujifilm X-mount |
| Weather Sealing | Yes | No |
| Autofocus Type | Retains lens AF | STM Motor |
Dimension comparison
Overview of the Products
The Sony FE 1.4x Teleconverter and the VILTROX 56mm F1.7 Fuji XF cater to different photography needs and styles. The Sony teleconverter extends the range of specific Sony lenses, while the VILTROX lens is a standalone prime lens designed for Fujifilm cameras. The teleconverter is priced at $598.00, making it significantly more expensive than the VILTROX lens, which retails for $180.00. This price difference reflects the differing functionalities and intended uses of the two products.
Target Audience
The target audience for the Sony FE 1.4x Teleconverter primarily includes photographers who need to extend the focal length of their existing Sony lenses, particularly in wildlife and sports photography. With a price of $598.00, it appeals to professionals who prioritize optical performance and versatility. On the other hand, the VILTROX 56mm F1.7 is aimed at Fujifilm users looking for a lightweight and bright lens for portraiture and everyday photography. At $180.00, it is accessible to both enthusiasts and professionals seeking quality at a lower price point.
Optical Performance
When it comes to optical performance, the Sony FE 1.4x Teleconverter is designed to maintain the full performance of compatible lenses, featuring an aspherical lens element that ensures impressive quality. It multiplies the focal length by 1.4x while only incurring a one-stop light loss, making it ideal for low-light conditions. In contrast, the VILTROX 56mm F1.7 boasts a bright f/1.7 maximum aperture, which also excels in low-light situations while allowing for greater control over depth of field. Each product is optimized for its specific purpose, but the teleconverter's ability to retain lens performance at a longer focal length is a distinctive advantage.
Build Quality and Design
The build quality of the Sony FE 1.4x Teleconverter is highlighted by its dust and moisture-resistant design, ensuring reliability during outdoor shoots. This feature is particularly beneficial for photographers who often work in challenging environments. Conversely, the VILTROX 56mm F1.7 is lightweight at only 171 grams, making it an excellent choice for travel photography. While the VILTROX may not offer the same level of weather resistance, its compactness and ease of use make it a practical option for everyday photography.
Autofocus Capabilities
Autofocus performance is a critical factor for many photographers, and both products have unique attributes in this area. The Sony FE 1.4x Teleconverter retains the autofocus capabilities of the lenses it is used with, ensuring quick and accurate focusing, which is vital for capturing fast-moving subjects. On the other hand, the VILTROX 56mm F1.7 features an STM stepper motor that provides a quiet autofocus experience, minimizing disruptions during photo and video shooting. Both options are designed to enhance the shooting experience, but they cater to different needs based on the user’s shooting style.
Versatility and Compatibility
The versatility of the Sony FE 1.4x Teleconverter is evident in its compatibility with specific Sony lenses, such as the SEL70200GM and SEL100400GM. This allows photographers to effectively extend the focal length of their existing gear without sacrificing quality. The VILTROX 56mm F1.7, however, is designed specifically for APS-C-format Fujifilm X-mount cameras, providing an equivalent focal length of 85mm, which is suitable for portrait photography. While both products offer versatility, the teleconverter excels in expanding the usability of existing lenses, whereas the VILTROX lens is a strong choice for those seeking a dedicated portrait lens.
Price Comparison
Price plays a significant role in the decision-making process for many photographers. The Sony FE 1.4x Teleconverter is priced at $598.00, while the VILTROX 56mm F1.7 is approximately 70% cheaper at $180.00. This substantial price difference reflects the teleconverter's specialized function and the optical performance it offers when paired with compatible lenses. For photographers on a budget or those who are just starting, the VILTROX lens presents a more accessible option without compromising on quality for portraiture.
Which should you buy?
Choosing between the Sony FE 1.4x Teleconverter and the VILTROX 56mm F1.7 ultimately depends on your photography needs. If you are a professional or avid enthusiast with existing Sony lenses who often shoots wildlife or sports, the teleconverter is a worthwhile investment due to its ability to enhance your lens's capabilities. However, if you are a Fujifilm user looking for a lightweight, affordable prime lens for portraits and everyday photography, the VILTROX 56mm F1.7 offers excellent optical performance at a more accessible price point. Both products serve distinct purposes, making the decision largely dependent on your specific photographic goals.

