Sony FE 1.4x Teleconverter vs Tamron 35-
Updated July 2026 — Sony FE 1.4x Teleconverter wins on price, Tamron 35- wins on weight and length.
The Tamron 35-150mm lens offers greater versatility and performance, making it the better choice for most photographers.
Why Sony FE 1.4x Teleconverter is better
Price
Sony is significantly cheaper at $598.
Weight
Sony is lighter and more portable.
Compatibility
Sony enhances existing lenses.
Why Tamron 35- is better
Versatility
Tamron covers a wide zoom range.
Optical Quality
Tamron has outstanding performance throughout its range.
Autofocus
Tamron features a fast, quiet autofocus system.
Overall score
Specifications
| Spec | Sony FE 1.4x Teleconverter | Tamron 35- |
|---|---|---|
| Focal Length | 1.4x | 35-150mm |
| Aperture | N/A | F2-2.8 |
| Weight | Unknown | 41.1 oz |
| Build Quality | Dust/moisture resistant | Robust design |
| Warranty | N/A | 6 years |
Dimension comparison
Overview of the Products
When comparing the Sony FE 1.4x Teleconverter and the Tamron 35-150mm F/2-2.8 Di III VXD, the key difference lies in their functionality and target use. The Sony teleconverter enhances existing lenses by increasing their focal length while maintaining optical quality, whereas the Tamron lens offers a versatile zoom range perfect for various photography styles. The Sony is priced at $598.00, while the Tamron lens is significantly higher at $1,499.00.
Design and Build Quality
The design and build quality of both products cater to specific use cases. The Sony FE 1.4x Teleconverter features a dust and moisture resistant design, ensuring reliability during outdoor photography sessions. This compact and lightweight design makes it an excellent choice for sports and wildlife photographers who need to extend their lens range. In contrast, the Tamron 35-150mm lens, weighing 41.1 ounces and measuring 6.2 inches in length, is a robust and sturdy option that provides a professional feel. While both products are designed for durability, the teleconverter’s lightweight nature may appeal more to those looking for portability.
Optical Performance
Optical performance is a critical factor for any lens or accessory, and both products excel in different areas. The Sony FE 1.4x Teleconverter is engineered to maintain full G Master performance with compatible lenses, ensuring minimal compromise in image quality and autofocus capabilities. This teleconverter multiplies focal length by 1.4x with only a 1-stop light loss, making it a compelling option for those needing extra reach without sacrificing performance. Conversely, the Tamron 35-150mm lens boasts outstanding optical performance throughout its zoom range, making it a versatile tool for various photography situations. This lens offers a fast aperture of F2-2.8, allowing for excellent low-light performance and beautiful bokeh, particularly useful for portrait photography.
Autofocus Capabilities
When it comes to autofocus capabilities, the Tamron 35-150mm lens has a distinct advantage. Featuring a fast, quiet VXD linear motor, it provides high-speed and high-precision autofocus, crucial for capturing fleeting moments in dynamic environments. This is particularly beneficial for both travel and portrait photographers who require quick and reliable focusing. On the other hand, while the Sony FE 1.4x Teleconverter does maintain autofocus performance when attached to compatible lenses, it doesn't have an integrated autofocus system of its own. Thus, if rapid autofocus is a priority, the Tamron lens stands out as the superior choice.
Versatility and Use Cases
In terms of versatility, the Tamron 35-150mm lens is a more comprehensive solution. It covers a focal length range from 35mm to 150mm, allowing photographers to easily shift between wide-angle and telephoto shots without changing lenses. This flexibility makes it ideal for travel, portraits, and various other photography styles. In contrast, the Sony FE 1.4x Teleconverter is specifically designed to enhance the capabilities of certain lenses, making it less versatile on its own. Photographers using the teleconverter will still require compatible Sony lenses for optimal performance, limiting its standalone usability.
Price Comparison
The price difference between these two products is significant, with the Tamron lens retailing at $1,499.00, which is about 150% more expensive than the Sony FE 1.4x Teleconverter at $598.00. This substantial price gap reflects the differing functionalities of the two products, with the Tamron offering a broader range of capabilities and an integrated design. For photographers on a budget, the Sony teleconverter presents a more affordable option that still delivers excellent quality when paired with compatible lenses.
Brand Reputation and Warranty
Brand reputation can play a considerable role in a photographer's purchasing decision. Sony is well-known for its high-quality imaging equipment, and the FE 1.4x Teleconverter benefits from this legacy, particularly among users of Sony’s G Master lenses. On the other hand, Tamron has also built a strong reputation for producing quality lenses, and the 35-150mm lens comes with a 6-year limited USA warranty, which adds an extra layer of security for buyers. This warranty may be particularly appealing for professional photographers looking for durability and reliability in their gear.
Which should you buy?
Choosing between the Sony FE 1.4x Teleconverter and the Tamron 35-150mm F/2-2.8 lens ultimately depends on your specific photography needs. If you seek an affordable option to extend the capabilities of your existing lenses without sacrificing image quality, the Sony teleconverter is a sound investment. However, if you desire a versatile, high-performance lens that covers a wide range of photography styles, the Tamron lens justifies its higher price with its advanced features and exceptional optical performance.

