Sony FE 1.4x Teleconverter vs VILTROX AF
Updated July 2026 — Sony FE 1.4x Teleconverter wins on price and weight, VILTROX AF wins on versatility.
The Sony FE 1.4x Teleconverter excels in extending focal lengths with high optical performance, while the VILTROX AF 9mm F2.8 lens offers an affordable ultra-wide option for creative photography.
Why Sony FE 1.4x Teleconverter is better
Optical Quality
Maintains full image quality with 1.4x extension
Build Quality
Dust and moisture resistant design
Target Audience
Ideal for professional sports and wildlife photographers
Why VILTROX AF is better
Price
More affordable at $199.00
Wide Angle
Offers 113.8° ultra-wide perspective
Lightweight
Compact design for easy portability
Overall score
Specifications
| Spec | Sony FE 1.4x Teleconverter | VILTROX AF |
|---|---|---|
| Focal Length | 1.4x | 9mm |
| Aperture | N/A | F2.8 |
| Compatibility | Sony E-mount | Sony E-mount |
| Weight | 200g | 150g |
| Weather Resistance | Yes | No |
Dimension comparison
Overview of the Sony FE 1.4x Teleconverter and VILTROX AF 9mm F2.8 Lens
The Sony FE 1.4x Teleconverter extends the focal length of compatible lenses by 1.4 times, while the VILTROX AF 9mm F2.8 lens offers an ultra-wide angle for expansive photography. These two products serve different purposes, catering to photographers with distinct needs. The Teleconverter, priced at $598.00, is designed for those who require versatility in focal lengths, particularly in sports or wildlife photography. In contrast, the VILTROX lens, which costs $199.00, is tailored for landscape and architecture photography, providing a wide perspective.
Design and Build Quality
In terms of design, the Sony FE 1.4x Teleconverter is compact and lightweight, built to maintain the high performance of G Master lenses. It features a dust and moisture-resistant design, ensuring reliability in various shooting conditions. This feature is crucial for outdoor photographers who often face unpredictable weather. The VILTROX AF 9mm F2.8 lens also boasts a lightweight design, part of the Air series, making it easy to carry for extended periods. It includes a metal lens mount and a 52mm filter thread, which adds to its durability. Both products prioritize portability, but the Teleconverter's weather-resistant feature may be more appealing to those shooting in diverse environments.
Optical Performance
When it comes to optical performance, the Sony FE 1.4x Teleconverter maintains full image quality and autofocus performance while multiplying the focal length by 1.4x with only a one-stop light loss. This ensures that photographers can capture sharp, high-quality images even with extended focal lengths. On the other hand, the VILTROX AF 9mm F2.8 lens offers an impressive 113.8° ultra-wide-angle view, ideal for capturing expansive landscapes and architecture. The large F2.8 aperture of the VILTROX lens allows for excellent low-light performance and creative background separation, making it suitable for various shooting situations. While both products excel in their respective areas, the Teleconverter is tailored for those who need to extend their current lens capabilities.
Autofocus Capabilities
The autofocus capabilities of both products cater to different shooting styles. The Sony FE 1.4x Teleconverter retains the autofocus performance of the compatible lenses it is used with, ensuring that photographers do not sacrifice speed or accuracy when extending their focal length. In contrast, the VILTROX AF 9mm F2.8 lens is equipped with a high-precision STM stepping motor, providing fast and silent autofocus for both photo and video shooting. This feature is particularly beneficial for vlogging and other video content creation. While the Teleconverter focuses on enhancing existing capabilities, the VILTROX lens offers a built-in solution for photographers who prioritize smooth autofocus during dynamic shoots.
Price Comparison
The pricing of these two products reflects their different functionalities and target audiences. The Sony FE 1.4x Teleconverter is priced at $598.00, making it a premium accessory for those who already own compatible Sony lenses. In contrast, the VILTROX AF 9mm F2.8 lens is available for $199.00, making it about 67% cheaper than the Teleconverter. This significant price difference makes the VILTROX lens a more accessible option for budget-conscious photographers looking to expand their equipment without breaking the bank.
Versatility in Usage
Versatility is a defining factor when comparing these two products. The Sony FE 1.4x Teleconverter is specifically designed to enhance the capabilities of compatible lenses, making it ideal for photographers who frequently shoot sports or wildlife and need that extra reach. With its ability to maintain full performance, it’s a valuable tool for serious photographers. The VILTROX AF 9mm F2.8 lens, on the other hand, offers versatility through its ultra-wide angle, making it perfect for a variety of photography styles, including landscape, architecture, and vlogging. Its close-focus capabilities provide creative opportunities for unique perspectives. Therefore, the choice between the two largely depends on the specific photography needs of the user.
Target Audience
The target audience for each product differs significantly. The Sony FE 1.4x Teleconverter is aimed at professional photographers who have invested in high-quality lenses and seek to expand their shooting range without compromising on image quality. This product is particularly appealing for those who engage in sports and wildlife photography. Conversely, the VILTROX AF 9mm F2.8 lens is designed for hobbyists and content creators who value portability and a wide-angle perspective for vlogging, travel, and creative photography. Its affordability makes it a practical choice for those looking to enhance their setup without a significant financial commitment.
Which should you buy?
Choosing between the Sony FE 1.4x Teleconverter and the VILTROX AF 9mm F2.8 lens ultimately depends on your specific photography needs and budget. If you require a tool to extend the capabilities of your existing lenses while maintaining high optical performance, the Teleconverter is the better investment, albeit at a higher price point. However, if you are seeking a budget-friendly ultra-wide lens that offers excellent versatility for landscapes and vlogging, the VILTROX lens is an outstanding option. Weighing the costs and features will help you make the best choice for your photography journey.

